CN115462865A

CN115462865A - Data processing method and device for total knee joint replacement, processor and electronic equipment

Info

Publication number: CN115462865A
Application number: CN202211359484.XA
Authority: CN
Inventors: 庞博; 郭笑楠; 申一君; 李文彦; 王静芝
Original assignee: Beijing Yidian Lingdong Technology Co ltd
Current assignee: Beijing Yidian Lingdong Technology Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2022-12-13
Anticipated expiration: 2042-11-02
Also published as: CN115462865B

Abstract

The application discloses a data processing method and device for total knee joint replacement, a processor and electronic equipment, and relates to the technical field of medical treatment, wherein the method comprises the following steps: acquiring a target medical image of a target object, and determining an osteotomy part of the target object; if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy quantity according to the target medical image, the first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first osteotomy quantity is used for providing data reference for the distal femur osteotomy; and if the osteotomy part is the femoral posterior condyle osteotomy, obtaining a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value. Through the application, the problem that the lower limb force line is established through opening the marrow with the help of corresponding tools in the related art, so that the accuracy of establishing the lower limb force line is lower is solved.

Description

Data processing method and device for total knee joint replacement, processor and electronic equipment

Technical Field

The present application relates to the field of medical technology, and in particular, to a data processing method and apparatus for total knee replacement, a processor, and an electronic device.

Background

Total Knee Arthroplasty (TKA) is a common procedure for the treatment of advanced osteoarthritis of the Knee, and is of great importance in alleviating pain in the Knee joint, and in restoring or improving the function of the Knee joint. It is particularly important to reconstruct accurate lower limb force lines, and poor force lines and deviations in the position of the prosthesis can lead to a shortened service life or premature loosening of the prosthesis. In the prior art, the lower limb force line needs to be reconstructed by performing the marrow opening by using a corresponding tool and then through a marrow cavity.

Aiming at the problem that the accuracy of establishing the lower limb force line is relatively low due to the fact that the lower limb force line is established by opening the marrow with the help of corresponding tools in the related art, no effective solution is provided at present.

Disclosure of Invention

The present application mainly aims to provide a data processing method and apparatus for total knee replacement, a processor and an electronic device, so as to solve the problem in the related art that soft tissue balance accuracy is relatively low due to realization of soft tissue balance such as knee joint flexion gap and ligament in an artificial manner.

In order to achieve the above object, according to one aspect of the present application, there is provided a data processing method of a total knee replacement. The method comprises the following steps: acquiring a target medical image of a target object, and determining an osteotomy part of the target object, wherein the osteotomy part is one of the following parts: distal femoral resection and posterior femoral condyle resection; if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first preset included angle value is an included angle value between a knee joint mechanical axis and a knee joint mechanical axis of the target object, and the first osteotomy amount is used for providing data reference for the distal femur osteotomy; and if the osteotomy part is the femoral posterior condyle osteotomy, obtaining a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is an included angle value between a knee joint osteotomy line and a knee joint medial-lateral posterior condyle connecting line of the target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyle osteotomy.

Further, if the osteotomy site is the distal femur osteotomy, obtaining a first osteotomy amount according to the target medical image, a first preset included angle value, and a preset first knee joint medial-lateral clearance value includes: determining a target axis according to the target medical image, wherein the target axis at least comprises the knee joint mechanical axis, the knee joint mechanical axis and a knee joint line; determining a distal mechanical shaft lateral angle of the femur of the target object according to the target axis; calculating according to the outer side angle of the distal femur mechanical shaft and the first preset included angle value to obtain a target included angle value, wherein the target included angle value is the inner and outer side inclination angle of the surgical spreader; and calculating to obtain the first osteotomy amount according to the target included angle value and the first knee joint medial-lateral clearance value.

Further, before calculating the first osteotomy amount according to the target included angle value and the preset first knee joint medial-lateral gap value, the method further comprises: obtaining an average value of the knee joint medial-lateral gap values of a target group, wherein the target group is a group of which the knee joint state meets a preset condition; determining a first prosthesis model number for a first prosthesis used by the target subject; setting a medial-lateral gap value of the first knee joint according to the average value and the first prosthesis model.

Further, calculating the first osteotomy amount according to the target included angle value and the preset medial-lateral gap value of the first knee joint comprises: calculating to obtain the height difference of the inner side and the outer side of the operation spreader according to the target included angle value; setting the operation mode of the operation spreader to be a distance mode, and controlling the bottom end of the operation spreader to be attached to a tibia osteotomy plane, the inner side of the top end of the operation spreader to be attached to the inner side of the distal femur and the outer side of the top end of the operation spreader to be attached to the outer side of the distal femur according to the inner-outer height difference; under the condition that the difference between the inner side height and the outer side height of the surgical spreader is kept unchanged, adjusting the inner side opening distance and the outer side opening distance through the surgical spreader according to the first knee joint inner side and outer side gap value, wherein the inner side opening distance and the outer side opening distance are the distances between the inner side and the outer side of the knee joint skeleton of the target object, which are opened by the surgical spreader; and obtaining the current medial-lateral distraction distance through the operation distractor, and calculating according to the current medial-lateral distraction distance and the preset medial-lateral clearance value of the first knee joint to obtain the first osteotomy amount.

Further, after calculating according to the current medial-lateral distraction distance and the preset first knee joint medial-lateral gap value to obtain the first osteotomy amount, the method further comprises: judging whether the first cut bone mass meets a first preset requirement or not; if the first osteotomy amount meets the first preset requirement, acquiring the current tension of the inner and outer ligaments of the knee joint through the operation spreader; and judging whether the current knee joint medial and lateral ligament tension meets a second preset requirement, and if the current knee joint medial and lateral ligament tension does not meet the second preset requirement, adjusting the first preset included angle value to enable the current knee joint medial and lateral ligament tension to meet the second preset requirement.

Further, after adjusting the first preset included angle value, the method further includes: and calculating to obtain a third osteotomy amount according to the adjusted first preset included angle value, wherein the third osteotomy amount is used for providing data reference for the distal femur osteotomy.

Further, after the current medial-lateral knee ligament tension satisfies the second preset requirement, the method further comprises: if the prosthesis of the target object is detected to be replaced, acquiring a second prosthesis model of a second prosthesis; adjusting the medial-lateral clearance value of the first knee joint according to the model of the second prosthesis, and calculating to obtain a fourth osteotomy amount according to the adjusted medial-lateral clearance value of the first knee joint, wherein the fourth osteotomy amount is used for providing data reference for the distal femur osteotomy.

Further, if the osteotomy part is the femoral posterior condyle osteotomy, obtaining a second osteotomy amount according to the target medical image, a preset second preset included angle value and a preset second knee joint medial-lateral clearance value comprises: determining a target included angle value according to the preset second preset included angle value and the target medical image, wherein the target included angle value is the inner and outer side inclined angle of the surgical dilator; calculating to obtain the height difference of the inner side and the outer side of the operation spreader according to the target included angle value; and calculating to obtain the second osteotomy amount according to the medial-lateral height difference of the surgical spreader and the medial-lateral gap value of the second knee joint.

In order to achieve the above object, according to another aspect of the present application, there is provided a data processing apparatus for total knee replacement. The device comprises: the device comprises a first acquisition unit, a second acquisition unit and a third acquisition unit, wherein the first acquisition unit is used for acquiring a target medical image of a target object and determining an osteotomy part of the target object, and the osteotomy part is one of the following parts: distal femur osteotomy and posterior femur osteotomy; a first calculating unit, configured to obtain a first osteotomy amount according to the target medical image, a first preset included angle value, and a preset first knee joint medial-lateral gap value when the osteotomy portion is the distal femur osteotomy, where the first preset included angle value is an included angle value between a mechanical knee joint axis and a mechanical knee joint axis of the target object, and the first osteotomy amount is used to provide a data reference for the distal femur osteotomy; and the second calculation unit is used for obtaining a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value if the osteotomy part is the femoral posterior condyle osteotomy, wherein the second preset included angle value is an included angle value between a knee joint osteotomy line and a knee joint medial-lateral posterior condyle connecting line of the target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyle osteotomy.

Further, the first calculation unit includes: a first determining subunit, configured to determine a target axis according to the target medical image, where the target axis includes at least the knee joint mechanical axis, and a knee joint line; a second determining subunit, configured to determine a distal mechanical shaft lateral angle of the femur of the target object according to the target axis; the first calculating subunit is used for calculating according to the outer side angle of the distal femur mechanical axis and the first preset included angle value to obtain a target included angle value, wherein the target included angle value is the inner and outer side inclination angle of the surgical spreader; and the second calculating subunit is used for calculating the first osteotomy amount according to the target included angle value and the first knee joint medial-lateral clearance value.

Further, the apparatus further comprises: a second obtaining unit, configured to obtain an average value of knee joint medial-lateral gap values of a target group before the first osteotomy amount is obtained through calculation according to the target included angle value and the preset first knee joint medial-lateral gap value, where the target group is a group in which a knee joint state meets a preset condition; a determination unit for determining a first prosthesis model of a first prosthesis used by the target subject; and the setting unit is used for setting the medial-lateral gap value of the first knee joint according to the average value and the model of the first prosthesis.

Further, the second calculation subunit includes: the first calculation module is used for calculating the height difference of the inner side and the outer side of the operation spreader according to the target included angle value; the control module is used for setting the operation mode of the operation spreader to be a distance mode and controlling the bottom end of the operation spreader to be attached to a tibia osteotomy plane, the top end inner side of the operation spreader to be attached to the femur far-end inner side and the top end outer side of the operation spreader to be attached to the femur far-end outer side according to the inner-outer height difference; the adjusting module is used for adjusting the internal and external distraction distance through the operation distractor according to the internal and external clearance value of the first knee joint under the condition that the internal and external height difference of the operation distractor is kept unchanged, wherein the internal and external distraction distance is the distance between the internal and external sides of the knee joint bone of the target object distracted by the operation distractor; and the second calculation module is used for acquiring the current internal and external distraction distance through the operation distractor, and calculating according to the current internal and external distraction distance and the preset internal and external clearance value of the first knee joint to obtain the first osteotomy amount.

Further, the apparatus further comprises: the first judgment unit is used for judging whether the first osteotomy amount meets a first preset requirement or not after the first osteotomy amount is obtained by calculating according to the current medial-lateral distraction distance and the preset medial-lateral gap value of the first knee joint; the third obtaining unit is used for obtaining the tension of the inner and outer ligaments of the current knee joint through the operation spreader if the first cut amount meets the first preset requirement; and the second judgment unit is used for judging whether the current knee joint medial and lateral ligament tension meets a second preset requirement, and if the current knee joint medial and lateral ligament tension does not meet the second preset requirement, adjusting the first preset included angle value to enable the current knee joint medial and lateral ligament tension to meet the second preset requirement.

Further, the apparatus further comprises: and the third calculating unit is used for calculating a third osteotomy amount according to the adjusted first preset included angle value after the first preset included angle value is adjusted, wherein the third osteotomy amount is used for providing data reference for the distal femur osteotomy.

Further, the apparatus further comprises: the detection unit is used for acquiring a second prosthesis model of a second prosthesis if the prosthesis of the target object is detected to be replaced after the tension of the inner ligament and the outer ligament of the current knee joint meets the second preset requirement; and the adjusting unit is used for adjusting the medial-lateral clearance value of the first knee joint according to the model of the second prosthesis and calculating a fourth osteotomy amount according to the adjusted medial-lateral clearance value of the first knee joint, wherein the fourth osteotomy amount is used for providing data reference for the distal femur osteotomy.

Further, the second calculation unit includes: a third determining subunit, configured to determine a target included angle value according to the preset second preset included angle value and the target medical image, where the target included angle value is an inner-outer side inclination angle of the surgical spreader; the third calculation subunit is used for calculating the height difference between the inner side and the outer side of the operation spreader according to the target included angle value; and the fourth calculating subunit is used for calculating the second osteotomy amount according to the medial-lateral height difference of the surgical spreader and the medial-lateral clearance value of the second knee joint.

In order to achieve the above object, according to one aspect of the present application, there is provided a processor for executing a program, wherein the program executes to perform the data processing method for total knee replacement according to any one of the above.

To achieve the above object, according to one aspect of the present application, there is provided an electronic device including one or more processors and a memory for storing data processing methods for implementing a total knee replacement according to any one of the above.

By the application, the following steps are adopted: acquiring a target medical image of a target object, and determining an osteotomy part of the target object, wherein the osteotomy part is one of the following parts: distal femur osteotomy and posterior femur osteotomy; if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first preset included angle value is an included angle value between a knee joint mechanical axis and a knee joint mechanical axis of a target object, and the first osteotomy amount is used for providing data reference for the distal femur osteotomy; if the osteotomy part is the femoral posterior condyles osteotomy, a second osteotomy amount is obtained according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is the included angle value of a knee joint osteotomy line and a knee joint medial-lateral posterior condyles connecting line of a target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyles osteotomy, so that the problem that the accuracy of establishing the lower limb force line is lower due to the fact that the marrow is opened by means of corresponding tools in the related art is solved. Calculating a first osteotomy amount through a set first preset included angle value and a first knee joint medial-lateral clearance value in the distal femur osteotomy; and in the femoral posterior condylar osteotomy, the second osteotomy amount is calculated through the set second preset included angle value and the second knee joint medial-lateral clearance value, so that the osteotomy amount can be calculated more accurately, the lower limb force line can be better established by controlling the first preset included angle value, the second preset included angle value and the knee joint medial-lateral clearance value, the marrow opening of a target object is avoided, and the effect of improving the accuracy of the lower limb force line is achieved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:

FIG. 1 is a schematic illustration of a distal mechanical axis lateral angle of a femur provided in accordance with an embodiment of the present application;

FIG. 2 is a schematic diagram of a first predetermined included angle value provided in accordance with an embodiment of the present application;

FIG. 3 is a graphical illustration of target included angle values provided in accordance with an embodiment of the present application;

FIG. 4 is a graphical representation of a second predetermined included angle value provided in accordance with an embodiment of the present application;

FIG. 5 is a flow chart of a data processing method for total knee replacement according to an embodiment of the present application;

FIG. 6 is a flow chart of a method for data processing of a distal femoral resection provided in accordance with an embodiment of the present application;

FIG. 7 is a flow chart of a method of data processing of a femoral posterior condyle osteotomy provided in accordance with an embodiment of the present application;

FIG. 8 is a schematic diagram of a data processing apparatus for total knee replacement provided in accordance with an embodiment of the present application;

fig. 9 is a schematic diagram of an electronic device provided according to an embodiment of the application.

Detailed Description

It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For convenience of description, some terms or expressions referred to in the embodiments of the present application are explained below:

mLDFA represents the distal mechanical axis lateral angle of the femur, defined as the lateral angle of the mechanical axis of the femur to the knee joint line on the coronal plane, typically 85 ° -95 °, as shown in fig. 1, LPFA in fig. 1 is the lateral patellar angle, typically 85 ° -90 °, MPTA is the proximal medial angle of the tibia, typically 85 ° -90 °; JLCA is the included angle of the tibial-femoral joint line, which is generally 0-2 degrees; the LDTA is the lateral distal angle of the femur, typically between 86 and 92.

The first predetermined entrapment angle value is an angle of the mechanical axis of the knee joint relative to the mechanical axis, and is set as α, as shown in fig. 2, line a is the mechanical axis, line B is the mechanical axis of the knee joint, line C is perpendicular to the horizontal line, and is set as positive for the knee joint varus α and negative for the knee joint valgus α. When alpha is positive, if the lower limb force line of the patient is required to be recovered, the far-end outer osteotomy amount of the femur of the patient in the operation is larger than the far-end inner osteotomy amount of the femur; when alpha is negative, if the lower limb force line of the patient is required to be restored, the far-end lateral bone cutting amount of the femur of the patient is smaller than that of the far-end medial bone cutting amount of the femur in the operation.

The value of the target included angle is beta, the operation spreader is inserted into the knee joint, the inclination angle of the inner side and the outer side of the operation spreader (the inner side and the outer side of the operation spreader are set to be consistent with the inner side and the outer side of the femur of a patient) is defined to be beta, when the height of the inner side of the spreader is higher than that of the outer side, the beta is considered to be positive, otherwise, the beta is negative. As shown in fig. 3.

The angle alpha of the force line axis relative to the mechanical axis, the inclination angle beta of the distractor and the lateral angle mLDFA of the distal mechanical axis of the femur satisfy the following relations: α =90-mLDFA + β.

The most commonly used rotational positioning reference axis for knee replacement femur is the connection line of the medial and lateral posterior condyles, as shown in fig. 4, the second preset included angle value is the connection line of the medial and lateral posterior condyles and the clip angle γ of the osteotomy, the external rotation is set to be positive, that is, the medial osteotomy amount of the knee posterior condyles is greater than the lateral osteotomy amount, the internal rotation is set to be negative, that is, the medial osteotomy amount of the knee posterior condyles is less than the lateral osteotomy amount, and the relationship between γ and β is: γ = - β.

The present invention will be described with reference to preferred implementation steps, and fig. 5 is a flowchart of a data processing method for total knee replacement according to an embodiment of the present application, and as shown in fig. 5, the method includes the following steps:

step S501, acquiring a target medical image of a target object, and determining an osteotomy portion of the target object, where the osteotomy portion is one of: a distal femoral resection and a posterior femoral condyle resection.

Specifically, a target medical image of a patient (i.e., the target object described above) is acquired, which may be an X-ray or CT data of the patient. And determining the osteotomy site of the patient, the osteotomy site mainly comprising distal femur osteotomy and posterior femur condyle osteotomy. There is variability in the knee joint parameters used at different osteotomy sites.

Step S502, if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first preset included angle value is an included angle value between a knee joint mechanical axis and a knee joint mechanical axis of the target object, and the first osteotomy amount is used for providing data reference for the distal femur osteotomy.

Specifically, when the osteotomy part is a distal femur osteotomy, a distal mechanical shaft outer angle (mLDFA) of the femur is determined through the target medical image, and then a first osteotomy amount is obtained according to the distal mechanical shaft outer angle of the femur, a first preset included angle value and a preset first knee joint inner and outer clearance value. The first pre-set value of included angle is typically desired at 0 deg., and the first knee medial-lateral spacing is typically set at 18-22 millimeters.

Step S503, if the resection part is the femoral posterior condylar resection, obtaining a second resection amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is the included angle value of a knee joint resection line and a knee joint medial-lateral posterior condylar connecting line of the target object, and the second resection amount is used for providing data reference for the femoral posterior condylar resection.

Specifically, when the osteotomy part is the distal femur osteotomy, the internal and external posterior condyles connecting line, the osteotomy line and the like are determined according to the target medical image, so that various included angle values can be identified conveniently in the later stage. And calculating to obtain a second osteotomy amount according to a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is generally expected to be about 3 degrees, and the second knee joint medial-lateral clearance value is generally set to be 18-22 mm.

In conclusion, in the distal femur osteotomy, the first osteotomy amount is calculated through the set first preset included angle value and the first knee joint medial-lateral gap value; and in the femoral posterior condylar osteotomy, the second osteotomy amount is calculated through the set second preset included angle value and the second knee joint medial-lateral clearance value, so that the osteotomy amount can be calculated more accurately, the lower limb force line can be better established by controlling the first preset included angle value, the second preset included angle value and the knee joint medial-lateral clearance value, the marrow opening of a target object is avoided, and the accuracy of reconstructing the lower limb force line is improved.

Therefore, in the data processing method for total knee replacement according to the embodiment of the present application, if the osteotomy site is a distal femur osteotomy, obtaining the first osteotomy amount according to the target medical image, the first preset included angle value, and the preset first medial-lateral knee gap value includes: determining a target axis according to the target medical image, wherein the target axis at least comprises a knee joint mechanical axis, a knee joint mechanical axis and a knee joint line; determining the lateral angle of the distal mechanical shaft of the femur of the target object according to the target axis; calculating according to the outer side angle of the distal femur mechanical shaft and a first preset included angle value to obtain a target included angle value, wherein the target included angle value is the inner and outer side inclination angle of the surgical dilator; and calculating to obtain a first osteotomy amount according to the target included angle value and the medial-lateral clearance value of the first knee joint.

Calculating the height difference between the inner side and the outer side of the surgical dilator according to the target included angle value; setting the operation mode of the operation spreader to be a distance mode, and controlling the bottom end of the operation spreader to be attached to a tibia osteotomy plane, the top end inner side of the operation spreader to be attached to the distal femur inner side and the top end outer side of the operation spreader to be attached to the distal femur outer side according to the inner-outer height difference; under the condition that the difference between the inner side height and the outer side height of the operation spreader is kept unchanged, adjusting the inner side distraction distance and the outer side distraction distance through the operation spreader according to the inner side clearance value and the outer side clearance value of the first knee joint, wherein the inner side distraction distance and the outer side distraction distance are the distances between the inner side and the outer side of the knee joint skeleton of the target object distracted by the operation spreader; and obtaining the current internal and external distraction distance through the operation distractor, and calculating according to the current internal and external distraction distance and a preset internal and external clearance value of the first knee joint to obtain a first osteotomy amount.

Specifically, preoperative planning is performed through a preoperative patient X-ray film or CT (i.e. the above-mentioned target medical image), a femoral mechanical axis, a knee joint line, a knee joint mechanical axis (i.e. the above-mentioned target axis) and the like are found, characteristic points of the axes are marked, and the size of the femoral distal mechanical axis lateral angle of the patient is determined through the target axis.

And calculating a target included angle value (beta), namely beta = alpha + mLDFA-90 according to the set first preset included angle value (alpha value) and the size of the lateral angle of the distal mechanical axis of the femur. Calculating the internal and external distraction height difference of the operation distractor according to the beta, setting the operation mode of the operation distractor into a distance mode, and controlling the bottom end of the operation distractor to be jointed with a tibia osteotomy plane, the top end inner side of the operation distractor to be jointed with the femur far-end inner side and the top end outer side of the operation distractor to be jointed with the femur far-end outer side according to the internal and external height difference. It should be noted that, after the operation mode of the surgical spreader is set as the distance model, the surgical spreader can read the relevant knee joint parameter values (e.g., medial-lateral distraction tension, medial-lateral distraction distance, etc.) in real time.

And the actual distraction distance of the inner side and the outer side is adjusted by the inner-outer side clearance value of the first knee joint under the condition of keeping the height difference of the inner side and the outer side of the operation distractor unchanged. Namely, the medial-lateral clearance value of the first knee joint is sent to the operation spreader, and the medial-lateral spreading distance is synchronously adjusted by the operation spreader. And then, obtaining the current internal and external distraction distance through the operation distractor, and calculating by utilizing the current internal and external distraction distance and the internal and external clearance value of the first knee joint to obtain a first osteotomy amount. It should be noted that the first resection provides a data reference for subsequent distal femoral resections.

By controlling the knee joint medial-lateral clearance value and the knee joint mechanical axis and the included angle value of the knee joint mechanical axis of the target object, the osteotomy amount can be more accurately calculated, and the lower limb force line can be more accurately reconstructed.

In order to more accurately set the medial-lateral gap value of the first knee joint, in the data processing method for total knee joint replacement provided in the embodiment of the present application, before the first osteotomy amount is calculated according to the target value of the included angle and the preset medial-lateral gap value of the first knee joint, the medial-lateral gap value of the first knee joint is set in the following manner: obtaining an average value of the knee joint medial-lateral gap values of a target group, wherein the target group is a group of which the knee joint state meets a preset condition; determining a first prosthesis model number for a first prosthesis used by the target subject; a first knee joint medial-lateral gap value is set based on the average value and the first prosthesis model.

Specifically, the average value of the medial-lateral knee joint clearance values of the population with a normal knee joint is calculated, the model of the prosthesis to be used by the patient (i.e., the first prosthesis model described above) is determined, the size and the dimensions of the prosthesis can be determined according to the prosthesis model, and then the medial-lateral knee joint clearance values are set according to the average value and the first prosthesis model. The medial-lateral spacing of the normal knee is about 18-22 mm, and thus the medial-lateral spacing of the first knee is typically set at about 18-22 mm.

The medial-lateral clearance value of the first knee joint can be set more accurately by comprehensively considering the average value of the medial-lateral clearance value of the normal knee joint and the model of the prosthesis, and the accuracy of calculating the osteotomy amount is further improved.

Total knee arthroplasty is a routine operation for treating late knee osteoarthritis, and has important significance for relieving knee joint pain and recovering or improving knee joint function of patients. It is particularly important to reconstruct a precise mechanical axis of the knee joint of the lower extremity, and poor force lines and deviations in the position of the prosthesis can lead to a reduction in the service life of the prosthesis or to premature loosening.

In order to further balance the soft tissue of the knee joint and better reconstruct the force axis of the knee joint, after calculating according to the current medial-lateral distraction distance and a preset first knee joint medial-lateral clearance value to obtain a first osteotomy amount, the method further comprises: judging whether the first cut bone mass meets a first preset requirement or not; if the first osteotomy amount meets a first preset requirement, acquiring the tension of the current medial and lateral ligaments of the knee joint through an operation spreader; and judging whether the current knee joint medial and lateral ligament tension meets a second preset requirement, and if the current knee joint medial and lateral ligament tension does not meet the second preset requirement, adjusting the first preset included angle value to enable the current knee joint medial and lateral ligament tension to meet the second preset requirement. And calculating to obtain a third osteotomy amount according to the adjusted first preset included angle value, wherein the third osteotomy amount is used for providing data reference for the distal femur osteotomy.

Whether the first osteotomy amount meets a first preset requirement or not needs to be judged, and under the condition that the first preset requirement is met, the operation spreader feeds back the tension of the inner ligament and the outer ligament of the knee joint in real time. It should be noted that, generally, the medial and lateral osteotomy amount of the distal femur osteotomy is generally about 7-11mm, the first preset requirement can be set whether the osteotomy amount is about 7-11mm, and the error is generally 1-2mm.

If the first osteotomy amount does not meet the first preset requirement, under the condition that the height difference between the inner side and the outer side of the surgical spreader is kept unchanged, the inner side and the outer side spreading distance is adjusted until the first osteotomy amount meets the first preset requirement.

And then, in order to better balance the soft tissues of the knee joint and better reconstruct the force axis of the knee joint, judging whether the tension of the inner and outer ligaments of the knee joint currently meets a second preset requirement. The second predetermined requirement may generally be set to a range of medial to lateral ligament tensions of 40-80N. The tension of the medial and lateral ligaments can be adjusted according to the physical condition of the patient. If the tension of the inner and outer ligaments does not meet the second preset requirement, the first preset included angle value can be selected to be adjusted, so that the tension of the inner and outer ligaments meets the second preset requirement.

And finally, calculating new beta and the difference between the inner side height and the outer side height of the surgical spreader according to the adjusted first preset included angle value, adjusting the spreading distance of the surgical spreader by combining the inner side clearance and the outer side clearance of the knee joint, and further calculating new bone cutting amount (namely the third bone cutting amount).

Controlling the amount of osteotomy and the medial-lateral ligament tension allows for better balancing of the knee joint soft tissues and better reconstruction of the knee joint mechanical axis.

In order to better implement the knee joint replacement surgery, a phenomenon of replacing a prosthesis may occur, so in the data processing method for total knee joint replacement provided in the embodiment of the present application, after the current medial-lateral ligament tension of the knee joint meets the second preset requirement, the method further includes: if the prosthesis of the target object is detected to be replaced, acquiring a second prosthesis model of a second prosthesis; and adjusting the medial-lateral clearance value of the first knee joint according to the model of the second prosthesis, and calculating to obtain a fourth osteotomy amount according to the adjusted medial-lateral clearance value of the first knee joint, wherein the fourth osteotomy amount is used for providing data reference for distal femur osteotomy.

Specifically, the prosthesis model can be set or switched according to the actual condition of the patient, the distraction distance can be adjusted according to the new prosthesis model, and the new bone cutting amount (i.e. the fourth bone cutting amount mentioned above) can be calculated.

In an alternative embodiment, the data processing for the distal femur osteotomy may be implemented using a flowchart as shown in fig. 6.

(1) And generating a preoperative plan, wherein the preoperative plan comprises X-ray images or CT data of the full-length knee joint of the patient, and acquiring an mLDFA angle according to the preoperative X-ray or CT data of the patient.

(2) Reading preoperative plan, displaying mLDFA angle of a patient, presetting expected alpha = 0, calculating the height difference of the inner side and the outer side of the distractor, setting the mean value of the gap between the inner side and the outer side of the knee joint and the like

(3) Setting the operation mode of the operation spreader to be a distance mode, using the operation spreader to assist bone cutting, and calculating beta according to the set alpha value, namely

(4) And calculating the internal and external distraction height difference of the surgical distractor according to the beta, controlling the bottom end of the surgical distractor to be tightly attached to the tibia osteotomy plane, and controlling the internal and external sides of the top end to be tightly attached to the internal and external sides of the distal femur.

(5) And setting an expected knee joint inner and outer gap value according to the inner and outer knee joint replacement gap value mean value, and adjusting the inner and outer actual distraction gap under the condition of keeping the inner and outer height difference of the distracter unchanged.

(6) And calculating the internal and external osteotomy amount of the distal end of the femur according to the internal and external gap values of the knee joint and the internal and external distraction distance of the surgical distractor.

(7) Judging whether the osteotomy amount meets the requirement, if so, adjusting the set alpha value, calculating new beta and the height difference between the inner side and the outer side of the spreader according to the newly set alpha value, combining the inner side and the outer side gaps of the knee joint, adjusting the spreading distance of the spreader and calculating the new osteotomy amount.

In conclusion, the balance of soft tissues can be controlled more accurately and the mechanical axis of the knee joint can be reconstructed better through the adjustment and the balance of the tension of the medial and lateral ligaments, the medial and lateral gaps of the knee joint and the included angle value between the mechanical axis of the knee joint and the mechanical axis of the knee joint of the target object.

In the data processing method for total knee replacement provided in the embodiment of the present application, if the resection part is a femoral posterior condyle resection, obtaining a second resection amount according to the target medical image, a preset second preset included angle value, and a preset second knee joint medial-lateral clearance value includes: determining a target included angle value according to a preset second preset included angle value and the target medical image, wherein the target included angle value is the inner and outer side inclined angle of the operation spreader; calculating the height difference of the inner side and the outer side of the surgical dilator according to the target included angle value; and calculating to obtain a second osteotomy amount according to the medial-lateral height difference of the surgical spreader and the medial-lateral gap value of the second knee joint.

Specifically, if the osteotomy site is a femoral posterior condylar osteotomy, the data processing procedure may be implemented using a flowchart as shown in fig. 7.

(1) The various axes, e.g., the osteotomy line and the medial-lateral posterior condylar line, are determined from the target medical image of the patient, and the location of the various angles is determined from the various axes.

(2) The operation mode of the operation spreader is a distance mode, an expected internal and external rotation angle gamma is set, the internal and external spreading height difference of the operation spreader is calculated according to the gamma, the bottom end of the operation spreader is controlled to be tightly attached to the tibial osteotomy plane, and the internal and external sides of the top end are tightly attached to the internal and external sides of the femoral posterior condyles.

(3) Setting expected medial and lateral knee joint gap values according to the medial and lateral knee joint replacement gap value mean values, adjusting the medial and lateral actual distraction gaps under the condition of keeping the height difference between the medial and lateral sides of the distraction device unchanged, sending the gap values to the surgical distraction device, and synchronously lifting the medial and lateral gap values by the surgical distraction device.

(4) And calculating the osteotomy amount according to the knee joint medial-lateral clearance value and the medial-lateral distraction distance.

(5) Judging whether the osteotomy amount meets the requirement, if so, adjusting the set gamma value, calculating new beta and the height difference between the inner side and the outer side of the distracter according to the newly set gamma value, combining the gap between the inner side and the outer side of the knee joint, adjusting the distraction distance and calculating new osteotomy amount.

According to the data processing method for total knee replacement provided by the embodiment of the application, a target medical image of a target object is obtained, and an osteotomy part of the target object is determined, wherein the osteotomy part is one of the following parts: distal femoral resection and posterior femoral condyle resection; if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first preset included angle value is an included angle value between a knee joint mechanical axis and a knee joint mechanical axis of a target object, and the first osteotomy amount is used for providing data reference for the distal femur osteotomy; if the osteotomy part is the femoral posterior condyle osteotomy, a second osteotomy amount is obtained according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is the included angle value of a knee joint osteotomy line and a knee joint medial-lateral posterior condyle connecting line of a target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyle osteotomy, so that the problem of low accuracy of establishing a lower limb force line caused by the fact that the lower limb force line is established by opening the marrow with the help of corresponding tools in the related art is solved. Calculating a first osteotomy amount through a set first preset included angle value and a first knee joint medial-lateral clearance value in the distal femur osteotomy; and in the femoral posterior condylar osteotomy, the second osteotomy amount is calculated through the set second preset included angle value and the second knee joint medial-lateral clearance value, so that the osteotomy amount can be calculated more accurately, the lower limb force line can be better established by controlling the first preset included angle value, the second preset included angle value and the knee joint medial-lateral clearance value, the marrow opening of a target object is avoided, and the effect of improving the accuracy of the lower limb force line is achieved.

It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.

The embodiment of the present application further provides a data processing apparatus for total knee replacement, and it should be noted that the data processing apparatus for total knee replacement according to the embodiment of the present application may be used to execute the data processing method for total knee replacement according to the embodiment of the present application. The data processing device for total knee replacement according to the embodiment of the present application will be described below.

Fig. 8 is a schematic diagram of a data processing apparatus for total knee replacement according to an embodiment of the present application. As shown in fig. 8, the apparatus includes: a first acquisition unit 801, a first calculation unit 802, and a second calculation unit 803.

A first acquiring unit 801, configured to acquire a target medical image of a target object and determine an osteotomy portion of the target object, where the osteotomy portion is one of: distal femoral resection and posterior femoral condyle resection;

the first calculating unit 802 is configured to obtain a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral gap value when the osteotomy portion is a distal femur osteotomy, where the first preset included angle value is an included angle value between a mechanical axis of a knee joint and a mechanical axis of the knee joint of the target object, and the first osteotomy amount is used to provide a data reference for the distal femur osteotomy;

the second calculating unit 803 is configured to obtain a second resection amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral gap value if the resection position is the femoral posterior condylar resection, where the second preset included angle value is an included angle value between a knee joint resection line and a knee joint medial-lateral posterior condylar connection line of the target object, and the second resection amount is used to provide data reference for the femoral posterior condylar resection.

In the data processing apparatus for total knee replacement according to the embodiment of the present application, the first obtaining unit 801 obtains a target medical image of a target object, and determines an osteotomy portion of the target object, where the osteotomy portion is one of: distal femoral resection and posterior femoral condyle resection; if the osteotomy part is a distal femur osteotomy, the first computing unit 802 obtains a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral gap value, wherein the first preset included angle value is an included angle value between a knee joint mechanical axis and a knee joint mechanical axis of a target object, and the first osteotomy amount is used for providing data reference for the distal femur osteotomy; if the osteotomy part is a femoral posterior condyle osteotomy, the second calculating unit 803 obtains a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is an included angle value of a knee joint osteotomy line and a knee joint medial-lateral posterior condyle connecting line of the target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyle osteotomy, so that the problem that the accuracy of establishing a lower limb force line is relatively low due to the fact that the lower limb force line is established by opening the marrow with the help of a corresponding tool in the related art is solved. Calculating a first osteotomy amount through a set first preset included angle value and a first knee joint medial-lateral clearance value in the distal femur osteotomy; and in the femoral posterior condylar osteotomy, the second osteotomy amount is calculated through the set second preset included angle value and the second knee joint medial-lateral clearance value, the osteotomy amount can be calculated more accurately, the lower limb force line can be better established by controlling the first preset included angle value, the second preset included angle value and the knee joint medial-lateral clearance value, and the marrow opening of a target object is avoided, so that the effect of improving the accuracy of the lower limb force line is achieved.

Optionally, in the data processing apparatus for total knee replacement provided in the embodiment of the present application, the first calculating unit 802 includes: the first determining subunit is used for determining a target axis according to the target medical image, wherein the target axis at least comprises a knee joint mechanical axis, a knee joint mechanical axis and a knee joint line; the second determining subunit is used for determining the external angle of the distal mechanical shaft of the femur of the target object according to the target axis; the first calculating subunit is used for calculating according to the outer side angle of the distal femur mechanical axis and a first preset included angle value to obtain a target included angle value, wherein the target included angle value is the inner side and outer side inclination angle of the surgical spreader; and the second calculating subunit is used for calculating the first osteotomy amount according to the target included angle value and the medial-lateral clearance value of the first knee joint.

Optionally, in the data processing apparatus for total knee replacement provided in the embodiment of the present application, the apparatus further includes: the second acquisition unit is used for acquiring the average value of the knee joint medial-lateral clearance values of a target group before the first osteotomy amount is calculated according to the target included angle value and a preset first knee joint medial-lateral clearance value, wherein the target group is a group of which the knee joint state meets a preset condition; a determination unit for determining a first prosthesis model of a first prosthesis used by the target subject; a setting unit for setting a lateral-medial gap value of the first knee joint based on the average value and the first prosthesis model.

Optionally, in the data processing apparatus for total knee replacement provided in the embodiment of the present application, the second calculating subunit includes: the first calculation module is used for calculating the height difference of the inner side and the outer side of the surgical dilator according to the target included angle value; the control module is used for setting the operation mode of the operation spreader to be a distance mode, and controlling the bottom end of the operation spreader to be attached to a tibia osteotomy plane, the top end inner side of the operation spreader to be attached to the femur far-end inner side and the top end outer side of the operation spreader to be attached to the femur far-end outer side according to the inner-outer side height difference; the adjusting module is used for adjusting the internal and external distraction distance through the operation distractor according to the internal and external clearance value of the first knee joint under the condition that the internal and external height difference of the operation distractor is kept unchanged, wherein the internal and external distraction distance is the distance between the internal and external sides of the knee joint skeleton of the target object distracted by the operation distractor; and the second calculation module is used for acquiring the current internal and external distraction distance through the operation distractor, and calculating according to the current internal and external distraction distance and a preset internal and external clearance value of the first knee joint to obtain the first osteotomy amount.

Optionally, in the data processing apparatus for total knee replacement provided in the embodiment of the present application, the apparatus further includes: the first judgment unit is used for judging whether the first osteotomy amount meets a first preset requirement or not after calculating according to the current medial-lateral distraction distance and a preset medial-lateral clearance value of the first knee joint to obtain the first osteotomy amount; the third acquisition unit is used for acquiring the tension of the inner ligament and the outer ligament of the current knee joint through the operation spreader if the first cut bone quantity meets a first preset requirement; and the second judgment unit is used for judging whether the tension of the medial and lateral ligaments of the current knee joint meets a second preset requirement, and if the tension of the medial and lateral ligaments of the current knee joint does not meet the second preset requirement, adjusting the first preset included angle value so that the tension of the medial and lateral ligaments of the current knee joint meets the second preset requirement.

Optionally, in the data processing apparatus for total knee replacement provided in an embodiment of the present application, the apparatus further includes: and the third calculating unit is used for calculating a third osteotomy amount according to the adjusted first preset included angle value after the first preset included angle value is adjusted, wherein the third osteotomy amount is used for providing data reference for the distal femur osteotomy.

Optionally, in the data processing apparatus for total knee replacement provided in an embodiment of the present application, the apparatus further includes: the detection unit is used for acquiring a second prosthesis model of a second prosthesis if the prosthesis of the target object is detected to be replaced after the tension of the inner ligament and the outer ligament of the current knee joint meets a second preset requirement; and the adjusting unit is used for adjusting the medial-lateral clearance value of the first knee joint according to the model of the second prosthesis and calculating to obtain a fourth osteotomy amount according to the adjusted medial-lateral clearance value of the first knee joint, wherein the fourth osteotomy amount is used for providing data reference for distal femur osteotomy.

Optionally, in the data processing apparatus for total knee replacement provided in the embodiment of the present application, the second calculation unit 803 includes: the third determining subunit is used for determining a target included angle value according to a preset second preset included angle value and the target medical image, wherein the target included angle value is an inner and outer side inclination angle of the surgical dilator; the third calculation subunit is used for calculating the height difference between the inner side and the outer side of the surgical dilator according to the target included angle value; and the fourth calculating subunit is used for calculating to obtain a second osteotomy amount according to the medial-lateral height difference of the surgical spreader and the medial-lateral clearance value of the second knee joint.

The data processing device for total knee replacement includes a processor and a memory, the first acquiring unit 801, the first calculating unit 802, the second calculating unit 803, and the like are stored in the memory as program units, and the processor executes the program units stored in the memory to realize corresponding functions.

The processor comprises a kernel, and the kernel calls the corresponding program unit from the memory. The kernel can be set to be one or more than one, and the data processing of the total knee joint replacement is realized by adjusting the kernel parameters.

The memory may include volatile memory in a computer readable medium, random Access Memory (RAM) and/or nonvolatile memory such as Read Only Memory (ROM) or flash memory (flash RAM), and the memory includes at least one memory chip.

The embodiment of the invention provides a processor, which is used for running a program, wherein the program executes a data processing method for total knee replacement during running.

As shown in fig. 9, an embodiment of the present invention provides an electronic device, where the device includes a processor, a memory, and a program stored in the memory and executable on the processor, and the processor implements the following steps when executing the program: acquiring a target medical image of a target object, and determining an osteotomy part of the target object, wherein the osteotomy part is one of the following parts: distal femur osteotomy and posterior femur osteotomy; if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first preset included angle value is an included angle value between a knee joint mechanical axis and a knee joint mechanical axis of a target object, and the first osteotomy amount is used for providing data reference for the distal femur osteotomy; and if the osteotomy part is the femoral posterior condyle osteotomy, obtaining a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is the included angle value of a knee joint osteotomy line and a knee joint medial-lateral posterior condyle connecting line of the target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyle osteotomy.

Optionally, if the osteotomy site is a distal femur osteotomy, obtaining the first osteotomy amount according to the target medical image, the first preset included angle value, and the preset first knee joint medial-lateral gap value includes: determining a target axis according to the target medical image, wherein the target axis at least comprises a knee joint mechanical axis, a knee joint mechanical axis and a knee joint line; determining the lateral angle of the distal mechanical shaft of the femur of the target object according to the target axis; calculating according to the outer side angle of the distal femur mechanical shaft and a first preset included angle value to obtain a target included angle value, wherein the target included angle value is the inner and outer side inclination angle of the surgical dilator; and calculating according to the target included angle value and the medial-lateral clearance value of the first knee joint to obtain the first osteotomy amount.

Optionally, before calculating the first amount of osteotomy according to the target value of the included angle and the preset first knee joint medial-lateral gap value, the method further comprises: obtaining an average value of the knee joint medial-lateral gap values of a target group, wherein the target group is a group of which the knee joint state meets a preset condition; determining a first prosthesis model number for a first prosthesis used by the target subject; a first knee joint medial-lateral gap value is set based on the average value and the first prosthesis model.

Optionally, the calculating the first cut volume according to the target included angle value and a preset medial-lateral gap value of the first knee joint comprises: calculating the height difference of the inner side and the outer side of the surgical dilator according to the target included angle value; setting the operation mode of the operation spreader to be a distance mode, and controlling the bottom end of the operation spreader to be attached to a tibia osteotomy plane, the top end inner side of the operation spreader to be attached to the distal femur inner side and the top end outer side of the operation spreader to be attached to the distal femur outer side according to the inner-outer height difference; under the condition that the difference between the inner side height and the outer side height of the operation spreader is kept unchanged, adjusting the inner side distraction distance and the outer side distraction distance through the operation spreader according to the inner side clearance value and the outer side clearance value of the first knee joint, wherein the inner side distraction distance and the outer side distraction distance are the distances between the inner side and the outer side of the knee joint skeleton of the target object distracted by the operation spreader; and obtaining the current internal and external distraction distance through the operation distractor, and calculating according to the current internal and external distraction distance and a preset internal and external clearance value of the first knee joint to obtain a first osteotomy amount.

Optionally, after the first amount of cut is obtained by calculating according to the current medial-lateral distraction distance and a preset medial-lateral gap value of the first knee joint, the method further includes: judging whether the first cut bone mass meets a first preset requirement or not; if the first osteotomy amount meets a first preset requirement, acquiring the tension of the inner ligament and the outer ligament of the knee joint through an operation spreader; and judging whether the current knee joint medial and lateral ligament tension meets a second preset requirement, and if the current knee joint medial and lateral ligament tension does not meet the second preset requirement, adjusting the first preset included angle value to enable the current knee joint medial and lateral ligament tension to meet the second preset requirement.

Optionally, after the adjusting the first preset included angle value, the method further comprises: and calculating to obtain a third osteotomy amount according to the adjusted first preset included angle value, wherein the third osteotomy amount is used for providing data reference for the distal femur osteotomy.

Optionally, after the current medial-lateral knee ligament tension satisfies the second predetermined requirement, the method further comprises: if the prosthesis of the target object is detected to be replaced, acquiring a second prosthesis model of a second prosthesis; and adjusting the medial-lateral clearance value of the first knee joint according to the model of the second prosthesis, and calculating to obtain a fourth osteotomy amount according to the adjusted medial-lateral clearance value of the first knee joint, wherein the fourth osteotomy amount is used for providing data reference for distal femur osteotomy.

Optionally, if the osteotomy portion is a femoral posterior condyle osteotomy, obtaining a second osteotomy amount according to the target medical image, a preset second preset included angle value and a preset second knee joint medial-lateral clearance value includes: determining a target included angle value according to a preset second preset included angle value and the target medical image, wherein the target included angle value is an inner and outer side inclination angle of the operation distractor; calculating the height difference of the inner side and the outer side of the surgical dilator according to the target included angle value; and calculating to obtain a second osteotomy amount according to the medial-lateral height difference of the surgical spreader and the medial-lateral gap value of the second knee joint.

The device herein may be a server, a PC, a PAD, etc.

The present application further provides a computer program product adapted to perform a program for initializing the following method steps when executed on a data processing device: acquiring a target medical image of a target object, and determining an osteotomy part of the target object, wherein the osteotomy part is one of the following parts: distal femoral resection and posterior femoral condyle resection; if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy quantity according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first preset included angle value is an included angle value between a mechanical axis of a knee joint and a mechanical axis of the knee joint of a target object, and the first osteotomy quantity is used for providing data reference for the distal femur osteotomy; and if the osteotomy part is the femoral posterior condylar osteotomy, obtaining a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is the included angle value of a knee joint osteotomy line and a knee joint medial-lateral posterior condylar connecting line of the target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condylar osteotomy.

Optionally, if the osteotomy site is a distal femur osteotomy, obtaining the first osteotomy amount according to the target medical image, the first preset included angle value, and the preset first knee joint medial-lateral gap value includes: determining a target axis according to the target medical image, wherein the target axis at least comprises a knee joint mechanical axis, a knee joint mechanical axis and a knee joint line; determining the lateral angle of the distal mechanical shaft of the femur of the target object according to the target axis; calculating according to the outer side angle of the distal femur mechanical shaft and a first preset included angle value to obtain a target included angle value, wherein the target included angle value is the inner and outer side inclination angle of the surgical dilator; and calculating to obtain a first osteotomy amount according to the target included angle value and the medial-lateral clearance value of the first knee joint.

Optionally, before calculating the first osteotomy amount according to the target included angle value and the preset first knee joint medial-lateral gap value, the method further comprises: obtaining an average value of the knee joint medial-lateral gap values of a target group, wherein the target group is a group of which the knee joint state meets a preset condition; determining a first prosthesis model number of a first prosthesis used by the target subject; a first knee joint medial-lateral gap value is set based on the average value and the first prosthesis model.

Optionally, the calculating the first cut volume according to the target included angle value and a preset medial-lateral gap value of the first knee joint comprises: calculating the height difference of the inner side and the outer side of the surgical dilator according to the target included angle value; setting the operation mode of the operation spreader to be a distance mode, and controlling the bottom end of the operation spreader to be attached to a tibia osteotomy plane, the inner side of the top end of the operation spreader to be attached to the inner side of the distal femur and the outer side of the top end of the operation spreader to be attached to the outer side of the distal femur according to the height difference between the inner side and the outer side; under the condition of keeping the height difference between the inner side and the outer side of the operation spreader unchanged, adjusting the inner side and outer side distraction distance through the operation spreader according to the inner side and outer side clearance value of the first knee joint, wherein the inner side and outer side distraction distance is the distance between the inner side and the outer side of the knee joint skeleton of the target object distracted by the operation spreader; and obtaining the current internal and external distraction distance through the operation distractor, and calculating according to the current internal and external distraction distance and a preset internal and external clearance value of the first knee joint to obtain a first osteotomy amount.

Optionally, after the first cut amount is obtained by calculating according to the current medial-lateral distraction distance and a preset medial-lateral gap value of the first knee joint, the method further includes: judging whether the first bone cut amount meets a first preset requirement or not; if the first osteotomy amount meets a first preset requirement, acquiring the tension of the inner ligament and the outer ligament of the knee joint through an operation spreader; and judging whether the current knee joint medial and lateral ligament tension meets a second preset requirement, and if the current knee joint medial and lateral ligament tension does not meet the second preset requirement, adjusting the first preset included angle value to enable the current knee joint medial and lateral ligament tension to meet the second preset requirement.

Optionally, after the adjusting the first preset included angle value, the method further includes: and calculating to obtain a third osteotomy amount according to the adjusted first preset included angle value, wherein the third osteotomy amount is used for providing data reference for the distal femur osteotomy.

Optionally, if the osteotomy part is a femoral posterior condylar osteotomy, obtaining a second osteotomy amount according to the target medical image, a preset second preset included angle value and a preset second knee joint medial-lateral gap value includes: determining a target included angle value according to a preset second preset included angle value and the target medical image, wherein the target included angle value is the inner and outer side inclined angle of the operation spreader; calculating the height difference of the inner side and the outer side of the surgical dilator according to the target included angle value; and calculating to obtain a second osteotomy amount according to the medial-lateral height difference of the surgical spreader and the medial-lateral gap value of the second knee joint.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and so forth) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). The memory is an example of a computer-readable medium.

Computer-readable media, including both permanent and non-permanent, removable and non-removable media, may implement the information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The above are merely examples of the present application and are not intended to limit the present application. Various modifications and changes may occur to those skilled in the art to which the present application pertains. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.

Claims

1. A data processing method for total knee replacement, comprising:

acquiring a target medical image of a target object, and determining an osteotomy part of the target object, wherein the osteotomy part is one of the following parts: distal femoral resection and posterior femoral condyle resection;

if the osteotomy part is the distal femur osteotomy, obtaining a first osteotomy quantity according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral clearance value, wherein the first preset included angle value is an included angle value between a knee joint mechanical axis and a knee joint mechanical axis of the target object, and the first osteotomy quantity is used for providing data reference for the distal femur osteotomy;

and if the osteotomy part is the femoral posterior condyle osteotomy, obtaining a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value, wherein the second preset included angle value is an included angle value between a knee joint osteotomy line and a knee joint medial-lateral posterior condyle connecting line of the target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyle osteotomy.

2. The data processing method of a total knee replacement according to claim 1, wherein obtaining a first resection amount according to the target medical image, a first predetermined included angle value and a predetermined first knee medial-lateral gap value when the resection site is the distal femur resection comprises:

determining a target axis according to the target medical image, wherein the target axis at least comprises the knee joint mechanical axis, the knee joint mechanical axis and a knee joint line;

determining a distal mechanical shaft lateral angle of the femur of the target object from the target axis;

calculating according to the outer side angle of the distal femur mechanical shaft and the first preset included angle value to obtain a target included angle value, wherein the target included angle value is the inner and outer side inclination angle of the surgical spreader;

and calculating to obtain the first osteotomy amount according to the target included angle value and the medial-lateral gap value of the first knee joint.

3. The data processing method for total knee replacement according to claim 2, wherein before calculating the first osteotomy amount according to the target angulation value and the preset first knee medial-lateral gap value, the method further comprises:

obtaining an average value of the knee joint medial-lateral gap values of a target group, wherein the target group is a group of which the knee joint state meets a preset condition;

determining a first prosthesis model number for a first prosthesis used by the target subject;

setting a lateral-medial gap value for the first knee joint based on the average value and the first prosthesis model.

4. The data processing method for total knee replacement according to claim 2, wherein calculating the first osteotomy amount according to the target included angle value and the preset first knee medial-lateral gap value comprises:

calculating to obtain the height difference of the inner side and the outer side of the operation spreader according to the target included angle value;

setting the operation mode of the operation spreader to be a distance mode, and controlling the bottom end of the operation spreader to be attached to a tibia osteotomy plane, the top end inner side of the operation spreader to be attached to the femur far-end inner side and the top end outer side of the operation spreader to be attached to the femur far-end outer side according to the inner-outer height difference;

adjusting the internal and external distraction distance of the surgical distractor according to the internal and external clearance value of the first knee joint under the condition of keeping the internal and external height difference of the surgical distractor unchanged, wherein the internal and external distraction distance is the distance between the internal and external sides of the knee joint bone of the target object distracted by the surgical distractor;

and obtaining the current medial-lateral distraction distance through the operation distractor, and calculating according to the current medial-lateral distraction distance and the preset medial-lateral clearance value of the first knee joint to obtain the first osteotomy amount.

5. The data processing method for a total knee replacement according to claim 4, wherein after calculating the first osteotomy amount according to the current medial-lateral distraction distance and the preset first knee medial-lateral gap value, the method further comprises:

judging whether the first bone-cutting amount meets a first preset requirement or not;

if the first osteotomy amount meets the first preset requirement, acquiring the current tension of the inner and outer ligaments of the knee joint through the operation spreader;

and judging whether the current knee joint medial and lateral ligament tension meets a second preset requirement, and if the current knee joint medial and lateral ligament tension does not meet the second preset requirement, adjusting the first preset included angle value to enable the current knee joint medial and lateral ligament tension to meet the second preset requirement.

6. The data processing method for total knee replacement according to claim 5, wherein after adjusting the first preset angle clamping value, the method further comprises:

and calculating to obtain a third osteotomy amount according to the adjusted first preset included angle value, wherein the third osteotomy amount is used for providing data reference for the distal femur osteotomy.

7. The data processing method of a total knee replacement according to claim 5, wherein after the current knee medial-lateral ligament tension satisfies the second predetermined requirement, the method further comprises:

if the prosthesis of the target object is detected to be replaced, acquiring a second prosthesis model of a second prosthesis;

and adjusting the medial-lateral clearance value of the first knee joint according to the model of the second prosthesis, and calculating to obtain a fourth osteotomy amount according to the adjusted medial-lateral clearance value of the first knee joint, wherein the fourth osteotomy amount is used for providing data reference for the distal femur osteotomy.

8. The data processing method of a total knee replacement according to claim 1, wherein if the resection is a femoral posterior condylar resection, obtaining a second resection amount according to the target medical image, a second preset included angle value and a second preset medial-lateral knee gap value comprises:

determining a target included angle value according to the preset second preset included angle value and the target medical image, wherein the target included angle value is an inner and outer side inclined angle of the operation spreader;

and calculating to obtain the second osteotomy amount according to the medial-lateral height difference of the surgical spreader and the medial-lateral clearance value of the second knee joint.

9. A data processing apparatus for total knee replacement, comprising:

the device comprises a first acquisition unit, a second acquisition unit and a third acquisition unit, wherein the first acquisition unit is used for acquiring a target medical image of a target object and determining an osteotomy part of the target object, and the osteotomy part is one of the following parts: distal femoral resection and posterior femoral condyle resection;

a first calculating unit, configured to obtain a first osteotomy amount according to the target medical image, a first preset included angle value and a preset first knee joint medial-lateral gap value if the osteotomy portion is the distal femur osteotomy, where the first preset included angle value is an included angle value between a mechanical axis of a knee joint and a mechanical axis of the knee joint of the target object, and the first osteotomy amount is used to provide a data reference for the distal femur osteotomy;

and the second calculation unit is used for obtaining a second osteotomy amount according to the target medical image, a second preset included angle value and a preset second knee joint medial-lateral clearance value if the osteotomy part is the femoral posterior condyle osteotomy, wherein the second preset included angle value is an included angle value between a knee joint osteotomy line and a knee joint medial-lateral posterior condyle connecting line of the target object, and the second osteotomy amount is used for providing data reference for the femoral posterior condyle osteotomy.

10. A processor, characterized in that the processor is configured to execute a program, wherein the program is configured to execute the data processing method of a total knee replacement according to any one of claims 1 to 8 when executed.

11. An electronic device comprising one or more processors and memory for storing one or more programs, wherein the one or more programs, when executed by the one or more processors, cause the one or more processors to implement the data processing method of a total knee replacement of any one of claims 1 to 8.