CN110151281B - Digital manufacturing method of condylar fracture nail fixing operation guide plate - Google Patents
Digital manufacturing method of condylar fracture nail fixing operation guide plate Download PDFInfo
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- CN110151281B CN110151281B CN201910341864.2A CN201910341864A CN110151281B CN 110151281 B CN110151281 B CN 110151281B CN 201910341864 A CN201910341864 A CN 201910341864A CN 110151281 B CN110151281 B CN 110151281B
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- guide plate
- fracture
- condylar
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B2017/568—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor produced with shape and dimensions specific for an individual patient
Abstract
The invention discloses a digital manufacturing method of a condylar fracture nail fixing operation guide plate, which comprises the following steps: the method comprises the following steps: scanning the skull of the patient through CBCT to obtain DICOM data of the hard tissues of the upper jaw and the lower jaw of the patient; step two: utilizing open medical imaging software MIMICS to complete virtual reduction operation of condylar fracture, dissecting the free end of reduced fracture, and designing the direction and depth of the retention screw; step three: designing an operation guide plate by using reverse engineering software; step four: the designed 3D model of the operation guide plate is printed out through a 3D printer. According to the invention, the CBCT three-dimensional image is combined, the computer is used for simulating the reduction operation, the retention direction and the depth of the long screw are designed, and the operation guide plate is manufactured by using the 3D printing technology, so that the accurate control on the operation can be effectively realized, the operation risk can be reduced, the operation difficulty can be reduced to the maximum extent, the operation efficiency can be improved, the operation cost can be effectively reduced, and the technology is convenient to apply and popularize in clinic.
Description
Technical Field
The invention relates to the technical field of surgical guide plates, in particular to a digital manufacturing method of a condylar fracture nail fixing surgical guide plate.
Background
The condyle fracture of the mandible caused by traffic accidents or falls is very common in clinic, the condyle fracture at the sagittal position is the most common type of condyle fracture, and because the free end of the fracture is small in volume and difficult to fix, a large number of patients have to remove the free bone block by surgery. Aiming at the clinical problem, in recent years, a single long screw fixed condyle sagittal fracture is adopted to obtain a good effect, the technology is realized by combining a computer model virtual operation and an operation navigation technology, the success rate and the accuracy of the operation reduction and fixation are greatly improved, and a good clinical effect is obtained; the fixing direction and depth of the long screw are the key for the success of the operation, but because the navigation system is not highly popularized in primary hospitals and the use cost is high, the technology cannot be effectively applied and popularized clinically in primary hospitals, and therefore a new technology which does not depend on the navigation system and can ensure the operation effect is urgently needed.
Disclosure of Invention
1. Technical problem to be solved
The technical problem to be solved by the invention is to provide a digital manufacturing method of a condylar fracture nail retention operation guide plate, which is characterized in that data are analyzed by combining CBCT three-dimensional images, a reduction operation is simulated by a computer, the retention direction and depth of a long screw are designed, and then the operation guide plate is manufactured by utilizing a 3D printing technology, so that the accurate control of the operation can be effectively realized, the operation risk can be reduced, the operation difficulty can be reduced to the maximum extent, the operation efficiency can be improved, the operation cost can be effectively reduced, and the technology is convenient to be clinically applied and popularized.
2. Technical scheme
In order to solve the problems, the invention adopts the following technical scheme:
a digital manufacturing method of a condylar fracture nail fixing surgical guide plate comprises the following steps:
the method comprises the following steps: scanning a three-dimensional image of the skull of the patient through CBCT, wherein the scanning parameters are 110kVp, 0.7mA and 3.6s, and obtaining DICOM data of the hard tissues of the upper jaw and the lower jaw of the patient;
step two: the virtual reduction operation of the condylar fracture is completed by using open medical imaging software MIMICS, the free end of the fracture is reduced by dissection, and the direction and the depth of a retention screw are designed, specifically:
A. inputting DICOM data into MIMICS software, and respectively modeling condylar episome and mandible through a 3D reconstruction model;
B. manually adjusting the position of the free body until the free body is perfectly compounded with the fracture end of the mandible, and further confirming that the anatomical reduction is achieved at the coronal position, the axial position and the sagittal position respectively;
C. selecting the layer with the largest inner and outer diameters of the condyle after reduction on the coronal position, carrying out dot-and-dash analysis, taking the innermost end of the condyle as a point A, taking the uppermost point and the lowermost point of the broken end of the mandibular fracture as points B and C respectively, taking the midpoint of a BC connecting line as a point D, taking an AD connecting line as the direction of the retention screw, taking the intersection point of an AD extension line and the lateral surface of the condyle as a point E, taking the point E as the drilling position of the retention screw, measuring the distance between the AE two points, and taking the closest value not exceeding the distance between the AE two points as the length of the retention screw;
D. designing the position, the angle and the direction of a screw drilling hole on a 3D reconstruction model, further confirming whether the angle and the direction of the screw are consistent with the design in the coronal position, the axial position and the sagittal position, and outputting an stl file for storage;
step three: inputting the stored stl file into a reverse engineering software Geomagic Studio to design a 3D model of an operation guide plate, wherein the operation guide plate is composed of a guide rod, a support plate and a clamp arm, the guide rod is fixed in the center of the top of the support plate, the clamp arm is uniformly connected to the edge of the bottom of the support plate, the guide rod is a cylinder, the inside of the guide rod is hollow, the diameter of the inside of the guide rod is equal to that of a retention nail, the support plate is of a disc structure, the thickness of the support plate is 1mm, the clamp arm is of an inverted cone structure, the thickness of a substrate from the base to the tip is gradually reduced, the thickness of the substrate is 1mm, and the thickness of the tip is 0.5 mm;
step four: and injecting the strip polylactic acid material into a 3D printer charging barrel, and printing the designed 3D model of the operation guide plate by using a 3D printer to obtain the complete operation guide plate.
Specifically, in the third step, the thickness of the guide rod is 1mm, and the length of the guide rod is 10 mm.
Specifically, in the third step, the edge size of the supporting plate is smaller than the sizes of the upper edge, the front edge and the rear edge of the condyle, and the edge size of the supporting plate is more than 3mm away from the upper edge, the front edge and the rear edge of the condyle.
Specifically, in the third step, the clamping arms are of elastic structures, the length of each clamping arm is not less than 3mm, and the number of the clamping arms is 3-5.
3. Advantageous effects
(1) According to the invention, the CBCT three-dimensional image is combined to obtain the hard tissue data of the upper and lower jawbones of the patient, the data are analyzed, and the corresponding virtual reduction operation is effectively formulated according to the fracture condition of the patient, so that the retention screw suitable for the patient is effectively designed to deal with the condylar fracture conditions of different patients in different states;
(2) according to the invention, the layer with the largest inner and outer diameters of the condyle process after reduction is selected on the coronal part, and the marking and scribing analysis is carried out, so that the analysis is effectively carried out according to the position and the angle of the fracture end of the mandible, and the use angle of the retention screw is effectively ensured to meet the requirements of the operation, thereby effectively improving the success rate and the accuracy of the reduction and fixation of the operation and improving the operation efficiency;
(3) according to the invention, through the designed retention screw, the operation guide plate data model is generated by adopting reverse engineering software, so that the generated operation guide plate data model is effectively suitable for being matched with the retention screw in the operation of a corresponding patient, the retention direction and the depth of the long screw are limited by the operation guide plate, the accurate control of the operation is realized, and the operation risk is reduced;
(4) according to the invention, the actual surgical guide plate is prepared from the surgical guide plate data model through the 3D printer, so that the surgical hidden danger under the condition of the loss of a navigation system in a primary hospital is effectively avoided, the implementation cost of the technology is reduced, and the technology is convenient to be clinically applied and popularized in the primary hospital.
In summary, the digital manufacturing method of the condylar fracture nail fixing operation guide plate provided by the invention analyzes data by combining CBCT three-dimensional images, simulates a reduction operation by a computer, designs the fixing direction and depth of a long screw, and manufactures the operation guide plate by utilizing a 3D printing technology, thereby effectively realizing accurate control of the operation, reducing the operation risk, reducing the operation difficulty to the maximum extent, improving the operation efficiency, effectively reducing the operation cost, and facilitating the clinical application and popularization of the technology in primary hospitals.
Description of the drawings:
FIG. 1 is a view of a survey analysis of the layer with the largest inner and outer diameters of the condylar process of the coronal region;
FIG. 2 is a schematic view of a surgical guide plate;
FIG. 3 is a side view of the surgical guide secured to the lateral surface of the condyle;
FIG. 4 is a schematic view of the surgical guide secured to the lateral surface of the condyle.
Detailed Description
The invention is described in further detail below with reference to fig. 1-4 and the examples.
Example 1
A digital manufacturing method of a condylar fracture nail fixing surgical guide plate comprises the following steps:
the method comprises the following steps: scanning a three-dimensional image of the skull of the patient through CBCT, wherein the scanning parameters are 110kVp, 0.7mA and 3.6s, and obtaining DICOM data of the hard tissues of the upper jaw and the lower jaw of the patient;
step two: the virtual reduction operation of the condylar fracture is completed by using open medical imaging software MIMICS, the free end of the fracture is reduced by dissection, and the direction and the depth of a retention screw are designed, specifically:
A. inputting DICOM data into MIMICS software, and respectively modeling condylar episome and mandible through a 3D reconstruction model;
B. manually adjusting the position of the free body until the free body is perfectly compounded with the fracture end of the mandible, and further confirming that the anatomical reduction is achieved at the coronal position, the axial position and the sagittal position respectively;
C. selecting the layer with the largest inner and outer diameters of the condyle after reduction on the coronal position, carrying out dot-and-dash analysis, taking the innermost end of the condyle as a point A, taking the uppermost point and the lowermost point of the broken end of the mandibular fracture as points B and C respectively, taking the midpoint of a BC connecting line as a point D, taking an AD connecting line as the direction of the retention screw, taking the intersection point of an AD extension line and the lateral surface of the condyle as a point E, taking the point E as the drilling position of the retention screw, measuring the distance between the AE two points, and taking the closest value not exceeding the distance between the AE two points as the length of the retention screw;
D. designing the position, the angle and the direction of a screw drilling hole on a 3D reconstruction model, further confirming whether the angle and the direction of the screw are consistent with the design in the coronal position, the axial position and the sagittal position, and outputting an stl file for storage;
step three: inputting the stored stl file into a reverse engineering software Geomagic Studio to design a 3D model of the surgical guide plate, wherein the surgical guide plate is composed of a guide rod, a support plate and clamp arms, the guide rod is fixed in the center of the top of the support plate, the clamp arms are uniformly connected with the edge of the bottom of the support plate, the guide rod is a cylinder, the interior of the guide rod is hollow, the diameter of the interior of the guide rod is equal to that of a retention nail, the thickness of the guide rod is 1mm, the length of the guide rod is 10mm, the support plate is of a disc structure, the thickness of the support plate is 1mm, the edge size of the support plate is smaller than that of the upper edge, the front edge and the rear edge of a condyle, the edge size of the support plate is 4mm away from the upper edge, the front edge and the rear edge of the condyle, the clamp arms are of an inverted cone structure, the base is gradually thinned from the tip, the thickness of the base is 1mm, the thickness of the tip is 0.5mm, the clamp arms are elastic structures, the length of the clamp arms is 4mm, and the number of the clamp arms is 3, so that the surgical guide plate can be conveniently fixed on the side surface of a bone, the fixing direction and the depth of the long screw are convenient to limit, and the precise control of the operation is realized, so that the operation risk is reduced;
step four: and injecting the strip polylactic acid material into a 3D printer charging barrel, and printing the designed 3D model of the operation guide plate by using a 3D printer to obtain the complete operation guide plate.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. A digital manufacturing method of a condylar fracture nail fixing surgical guide plate is characterized by comprising the following steps:
the method comprises the following steps: scanning a three-dimensional image of the skull of the patient through CBCT, wherein the scanning parameters are 110kVp, 0.7mA and 3.6s, and obtaining DICOM data of the hard tissues of the upper jaw and the lower jaw of the patient;
step two: the virtual reduction operation of the condylar fracture is completed by using open medical imaging software MIMICS, the free end of the fracture is reduced by dissection, and the direction and the depth of a retention screw are designed, specifically:
A. inputting DICOM data into MIMICS software, and respectively modeling the condylar episome and the mandible through a 3D reconstruction model;
B. manually adjusting the position of the free body until the free body is perfectly compounded with the fracture end of the mandible, and further confirming that the anatomical reduction is achieved at the coronal position, the axial position and the sagittal position respectively;
C. selecting the layer with the largest inner and outer diameters of the condyle after reduction on the coronal position, carrying out dot-and-dash analysis, taking the innermost end of the condyle as a point A, taking the uppermost point and the lowermost point of the broken end of the mandibular fracture as points B and C respectively, taking the midpoint of a BC connecting line as a point D, taking an AD connecting line as the direction of the retention screw, taking the intersection point of an AD extension line and the lateral surface of the condyle as a point E, taking the point E as the drilling position of the retention screw, measuring the distance between the AE two points, and taking the closest value not exceeding the distance between the AE two points as the length of the retention screw;
D. designing the position, the angle and the direction of a screw drilling hole on a 3D reconstruction model, further confirming whether the angle and the direction of the screw are consistent with the design in the coronal position, the axial position and the sagittal position, and outputting an stl file for storage;
step three: inputting the stored stl file into a reverse engineering software Geomagic Studio to design a 3D model of an operation guide plate, wherein the operation guide plate is composed of a guide rod, a support plate and a clamp arm, the guide rod is fixed in the center of the top of the support plate, the clamp arm is uniformly connected to the edge of the bottom of the support plate, the guide rod is a cylinder, the inside of the guide rod is hollow, the diameter of the inside of the guide rod is equal to that of a retention nail, the support plate is of a disc structure, the thickness of the support plate is 1mm, the clamp arm is of an inverted cone structure, the thickness of a substrate from the base to the tip is gradually reduced, the thickness of the substrate is 1mm, and the thickness of the tip is 0.5 mm;
step four: and injecting the strip polylactic acid material into a 3D printer charging barrel, and printing the designed 3D model of the operation guide plate by using a 3D printer to obtain the complete operation guide plate.
2. The digital manufacturing method of the condylar fracture nail fixing surgical guide plate according to claim 1, wherein in the third step, the guide rod is 1mm thick and 10mm long.
3. The digital manufacturing method of the condylar fracture nail fixing surgical guide plate of claim 1, wherein in the third step, the edge size of the support plate is smaller than the size of the upper edge, the front edge and the rear edge of the condylar process, and the distance between the edge size of the support plate and the upper edge, the front edge and the rear edge of the condylar process is more than 3 mm.
4. The digital manufacturing method of the condylar fracture nail fixing surgical guide plate according to claim 1, wherein in the third step, the clamp arms are elastic structures, the length of the clamp arms is not less than 3mm, and 3-5 clamp arms are provided.
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| CN201910341864.2A CN110151281B (en) | 2019-04-26 | 2019-04-26 | Digital manufacturing method of condylar fracture nail fixing operation guide plate |
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| CN201910341864.2A CN110151281B (en) | 2019-04-26 | 2019-04-26 | Digital manufacturing method of condylar fracture nail fixing operation guide plate |
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| CN110151281B true CN110151281B (en) | 2021-11-12 |
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| CN112370152B (en) * | 2020-11-13 | 2022-03-11 | 山东中医药大学附属医院 | 3D printing outer guide plate resetting and fixing system based on virtual resetting and using method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104306061A (en) * | 2014-10-30 | 2015-01-28 | 华中科技大学同济医学院附属协和医院 | Atlantoaxial pedicle screw guide and preparation method therefor |
| CN205031359U (en) * | 2015-10-15 | 2016-02-17 | 董智伟 | Lower jaw angle location baffle |
| CN105476707A (en) * | 2015-10-30 | 2016-04-13 | 自贡市第四人民医院 | Individual occipitocervical fusion screw feeding navigation template manufacturing method |
| CN107913101A (en) * | 2017-12-21 | 2018-04-17 | 成都真实维度科技有限公司 | Based on virtual image and the fracture of neck of femur surgical planning method and system for combining tantalum nail |
| CN109480955A (en) * | 2018-12-19 | 2019-03-19 | 常州市第人民医院 | Operation guide plate in coracoclavicular ligament reconstruction and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201511646D0 (en) * | 2015-07-02 | 2015-08-19 | Nottingham University Hospitals Nhs Trust | Improvements relating to bone anchors |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104306061A (en) * | 2014-10-30 | 2015-01-28 | 华中科技大学同济医学院附属协和医院 | Atlantoaxial pedicle screw guide and preparation method therefor |
| CN205031359U (en) * | 2015-10-15 | 2016-02-17 | 董智伟 | Lower jaw angle location baffle |
| CN105476707A (en) * | 2015-10-30 | 2016-04-13 | 自贡市第四人民医院 | Individual occipitocervical fusion screw feeding navigation template manufacturing method |
| CN107913101A (en) * | 2017-12-21 | 2018-04-17 | 成都真实维度科技有限公司 | Based on virtual image and the fracture of neck of femur surgical planning method and system for combining tantalum nail |
| CN109480955A (en) * | 2018-12-19 | 2019-03-19 | 常州市第人民医院 | Operation guide plate in coracoclavicular ligament reconstruction and preparation method thereof |
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