CN111870329B - Device and method for femoral angle recovery and verification - Google Patents
Device and method for femoral angle recovery and verification Download PDFInfo
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- CN111870329B CN111870329B CN202010761750.6A CN202010761750A CN111870329B CN 111870329 B CN111870329 B CN 111870329B CN 202010761750 A CN202010761750 A CN 202010761750A CN 111870329 B CN111870329 B CN 111870329B
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- 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
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Abstract
The invention provides a device for femoral angle recovery and verification, which comprises: the first guide plate is used for supporting the femoral head, the lower part of the first guide plate is provided with a first structure which is attached to a small rotor part, the outer side wall of the first guide plate is provided with a Kirschner wire channel for a Kirschner wire to pass through, and the Kirschner wire channel penetrates through the first guide plate; the second guide plate is provided with a second structure attached to the outer side part of the femur and a handheld part vertically arranged with the outer side wall of the second structure. The advantages are that: the later growth and development of children are not affected basically, and the physiological function of the femoral neck is better recovered; the operation difficulty of doctors is reduced, thereby reducing the operation time, reducing the bleeding amount of patients and being beneficial to the postoperative recovery of the patients.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a device and a method for femoral angle recovery and verification.
Background
Femoral neck fracture refers to fracture of the neck of the femur, generally refers to fracture between the femoral head and the base of the neck of the femur, and femoral neck fracture may occur in all ages. There are a number of treatments for such fractures known in the art, for example: an inner side supporting structure of femoral neck and a femoral neck fracture fixing device (201620115636.5) disclose a fixing device for femoral neck fracture, but the neck angle, anteversion angle, femoral neck length and the like of the healthy side of a patient with the collapse of femoral neck cannot be effectively recovered, so that the fracture reconstruction effect is poor; moreover, since the postoperative femoral neck is not effectively inspected, and whether the postoperative femoral neck is reconstructed well (including whether various angles such as the anteversion angle and the shaft angle are correct) cannot be known, the development of a device and a method for solving the technical defects is not easy.
Disclosure of Invention
The invention provides a device and a method for femoral angle recovery and verification, which aim to overcome at least one technical defect, so that a patient with a collapsed femoral neck can recover the cervical shaft angle, the anteversion angle and the length of the femoral neck to a healthy side, the recovery effect is good, and the later growth and development influence of the child patient is particularly reduced.
In order to achieve the above purpose, the invention provides the following technical scheme:
an apparatus for femoral angle restoration and verification, comprising: the first guide plate is used for supporting the femoral head, the lower part of the first guide plate is provided with a first structure which is attached to a small rotor part, the outer side wall of the first guide plate is provided with a Kirschner wire channel for a Kirschner wire to pass through, and the Kirschner wire channel penetrates through the first guide plate;
the second guide plate is provided with a second structure attached to the outer side part of the femur and a handheld part vertically arranged with the outer side wall of the second structure.
Furthermore, the number of the kirschner wire channels is four, two of the kirschner wire channels correspond to the position of a femoral head, and the other two of the kirschner wire channels correspond to the position of the upper end of a femoral shaft.
Further, the kirschner wire channel is in a hollow cylindrical shape.
Furthermore, the second structure is simultaneously attached to the femoral head and the femoral greater tuberosity part, and the second structure is an irregular arc-shaped structure.
Further, the first guide plate is designed according to the neck trunk angle and the anteversion angle of the healthy lateral femoral neck.
Further, the second guide plate is designed according to the lateral parameters of the femur.
A method for femoral angle restoration and verification, comprising the steps of:
(1) reconstruction of the first guide plate: designing a first guide plate by mirroring the data of the healthy side femur and using a neck trunk angle and an anteversion angle of a healthy side femur neck as parameter bases by using a 3D printing process;
(2) rebuilding a second guide plate: designing a second guide plate by mirroring the data of the femur on the healthy side and taking the outer side of the femur as a parameter reference by using a 3D printing process;
(3) biological reconstruction of femoral neck: in the operation process, the neck of the affected femur is biologically reconstructed by using a first guide plate with a small trochanter as a reference, four Kirschner wires are respectively inserted into the passage of the Kirschner wires to fix the femoral head and the femur on the affected side, then the bone is pressed and implanted according to the radian shape of the first guide plate, and a steel plate and a screw are used for fixation;
(4) testing after bioremediation: and after reconstruction, using a second guide plate for inspection, specifically, inspecting whether the positions of the reconstructed femoral neck and the femoral head are perfectly attached to the second guide plate or not by taking the outer femoral tuberosity part as a reference, and if the positions are perfectly attached, successfully reconstructing.
Furthermore, the first guide plate is used for supporting a femoral head, the lower part of the first guide plate is provided with a first structure attached to the small rotor part, the outer side wall of the first guide plate is provided with a Kirschner wire channel for passing through a Kirschner wire, and the Kirschner wire channel penetrates through the first guide plate;
the second guide plate is provided with a second structure attached to the outer side part of the femur and a handheld part vertically arranged with the outer side wall of the second structure.
Furthermore, the number of the kirschner wire channels is four, two of the kirschner wire channels correspond to the position of a femoral head, and the other two of the kirschner wire channels correspond to the position of the upper end of a femoral shaft.
The invention relates to a device and a method for femoral angle recovery and verification, which have the advantages that:
1. the structural design of the device changes the traditional operation of femoral head replacement aiming at the femoral neck fracture collapse case of children, the traditional femoral head replacement can cause large bone loss, the children develop fast, and the later period revision is frequent, the device of the invention just solves the problems, and the later period growth and development of the children can not be influenced basically;
2. the device can ensure that a doctor can accurately restore the affected femoral neck to the neck shaft angle and the anteversion angle which are consistent with those of the healthy femoral neck in the operation, thereby better restoring the physiological function of the femoral neck;
3. the device can reduce the operation difficulty of doctors, thereby reducing the operation time, reducing the bleeding amount of patients and being beneficial to the postoperative recovery of the patients.
4. The method of the invention respectively utilizes the shaft angle and the anteversion angle of the healthy side femoral neck as parameter basis and the outer side of the femur as parameter benchmark to combine with 3D printing technology, and the bionic human body bone is used for preparing the first guide plate and the second guide plate, and the fitting in the operation is perfect according to the bone design of the patient;
5. the method has the advantages of simple operation, accurate positioning and good recovery effect;
6. first baffle, second baffle adopt the nylon material, repeatedly usable, durable, are fit for in the art to beat to press the bone grafting and use.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic perspective view of a first guide plate according to the present invention;
FIG. 2 is a perspective view of a second guide plate according to the present invention;
FIG. 3 is a view showing a first guide plate of the present invention in use;
FIG. 4 is a view showing a second guide plate in use;
FIG. 5 is a schematic view of a reconstructed femur;
wherein:
a first guide plate 1, a first structure 11 and a Kirschner wire channel 12;
the second guide plate 2, the second structure 21, the handhold part 22 and the groove 23;
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1 to 4, a device for femoral angle restoration and verification according to the present invention includes: the first guide plate 1 is used for biologically reconstructing the affected femoral neck, the second guide plate 2 is used for testing after biological reconstruction, the first guide plate 1 is used for supporting the femoral head, the lower part of the first guide plate is provided with a first structure 11 attached to a small rotor part, the outer side wall of the first guide plate 1 is provided with a Kirschner wire channel 12 for passing through a Kirschner wire, and the Kirschner wire channel 12 penetrates through the first guide plate 1;
the second guide plate 2 is provided with a second structure 21 attached to the outer side part of the femur and a handheld part 22 arranged perpendicular to the outer side wall of the second structure 21;
more specifically, the first guide plate 1 and the second guide plate 2 are both made of nylon materials and are prepared by using a 3D printing technology, so that the guide plate can be repeatedly used, is firm and durable, and is suitable for being used when bone grafting is pressed in an operation; and the first guide plate 1 and the second guide plate 2 have the auxiliary reconstruction function, so that the femoral neck fracture treatment instrument is effective to femoral neck fracture, and can restore the neck shaft angle, the anteversion angle and the femoral neck length of a femoral neck collapse patient to healthy side.
The specific position of the kirschner wire channel 12 is designed according to the access position in the doctor operation;
more specifically, the hand-held portion 22 is used to verify that the physician is holding it during the procedure to verify that the bio-reconstructive femoral neck is well-reconstructed; the handheld part 22 is of a plate-shaped structure, two pairs of grooves 23 are formed in the side wall of the handheld part along the length direction of the handheld part, and the handheld part 22 is divided into three areas from outside to inside along the length direction of the handheld part, so that a doctor can conveniently hold the handheld part and place the handheld part to slide down; the handle portion 22 is integrally formed with the second structure 21.
Furthermore, there are four kirschner wire channels 12, two of which correspond to the femoral head and the other two of which correspond to the upper end of the femoral shaft.
Further, the kirschner wire passage 12 is hollow and cylindrical, and has the functions of guiding and strengthening the fixing effect.
Furthermore, the second structure 21 is simultaneously attached to the femoral head and the femoral greater trochanter, and the second structure 21 is an irregular arc-shaped structure, so that the attachment position can be conveniently found in the operation.
Further, the first guide plate 1 is designed based on the shaft angle and the anteversion angle of the healthy side femoral neck.
Further, the second guide plate 2 is designed according to the lateral parameters of the femur.
A method for femoral angle restoration and verification, comprising the steps of:
(1) reconstruction of the first guide plate 1: designing a first guide plate 1 by mirroring the data of the healthy side femur and using a 3D printing process with a neck trunk angle and an anteversion angle of a healthy side femur neck as parameter bases;
(2) reconstruction of the second guide plate 2: designing a second guide plate 2 by mirroring the data of the femur on the healthy side and taking the outer side of the femur as a parameter reference by using a 3D printing process;
(3) biological reconstruction of femoral neck: in the operation process, the neck of the affected femur is biologically reconstructed by using the first guide plate 1 with the lesser trochanter as a reference, four Kirschner wires are respectively inserted into the Kirschner wire channel 12 to fix the femoral head and the femur on the affected side, then the bone is pressed and implanted (autogenous bone/allogeneic bone and artificial granular bone are taken) according to the radian shape of the first guide plate 1, and the bone is fixed by using a steel plate 3 and a screw 4;
(4) testing after bioremediation: and after reconstruction, the second guide plate 2 is used for checking, specifically, whether the positions of the reconstructed femoral neck and the femoral head are perfectly attached to the second guide plate 2 is checked by taking the outer femoral tuberosity part as a reference, and the reconstruction is successful if the positions of the reconstructed femoral neck and the femoral head are perfectly attached.
Furthermore, the first guide plate 1 is used for supporting a femoral head and is provided with a first structure 11 at the lower part thereof, the first structure is attached to a small rotor part, a kirschner wire channel 12 for passing a kirschner wire is arranged on the outer side wall of the first guide plate 1, and the kirschner wire channel 12 penetrates through the first guide plate 1;
the second guide plate 2 has a second structure 21 attached to the outer side of the femur and a hand-held portion 22 provided perpendicular to the outer side wall of the second structure 21.
Specifically, the first guide plate 1 and the second guide plate 2 have an auxiliary reconstruction effect, and can be effective for femoral neck fracture and restore the neck shaft angle, the anteversion angle and the femoral neck length of a femoral neck collapse patient to healthy side. The specific position of the kirschner wire channel 12 is designed according to the access position in the doctor operation;
more specifically, the hand-held portion 22 is used to verify that the physician is holding it during the procedure to verify that the bio-reconstructive femoral neck is well-reconstructed; the handheld part 22 is of a plate-shaped structure, two pairs of grooves 23 are formed in the side wall of the handheld part along the length direction of the handheld part, and the handheld part 22 is divided into three areas from outside to inside along the length direction of the handheld part, so that a doctor can conveniently hold the handheld part and place the handheld part to slide down; the handle portion 22 is integrally formed with the second structure 21.
Furthermore, there are four kirschner wire channels 12, two of which correspond to the femoral head and the other two of which correspond to the upper end of the femoral shaft. The kirschner wire passage 12 is hollow and cylindrical, and has the functions of guiding and strengthening the fixing effect.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (3)
1. An apparatus for femoral angle restoration and verification, comprising: the first guide plate (1) is used for biological reconstruction of a femoral neck at an affected side, the second guide plate (2) is used for inspection after biological reconstruction, the first guide plate (1) is used for supporting a femoral head, the lower portion of the first guide plate is provided with a first structure (11) attached to a small rotor part, a Kirschner wire channel (12) for passing a Kirschner wire is arranged on the outer side wall of the first guide plate (1), and the Kirschner wire channel (12) penetrates through the first guide plate (1); the number of the Kirschner wire channels (12) is four, two of the Kirschner wire channels correspond to the position of the femoral head, and the other two of the Kirschner wire channels correspond to the position of the upper end of the femoral shaft;
the first guide plate (1) is designed according to the neck shaft angle and the anteversion angle of the neck of the femur on the healthy side, and the first guide plate (1) is used for fixing the femoral head and the femur on the affected side;
the second guide plate (2) is provided with a second structure (21) attached to the outer side part of the femur and a handheld part (22) arranged perpendicular to the outer side wall of the second structure (21);
the second structure (21) is simultaneously attached to the femoral head and the femoral greater tuberosity part, and the second structure (21) is an irregular arc-shaped structure;
and (3) using the second guide plate (2) to carry out inspection, in particular to inspect whether the positions of the reconstructed femoral neck and the femoral head are jointed with the second guide plate (2).
2. The device for femoral angle restoration and verification as claimed in claim 1, wherein: the Kirschner wire channel (12) is hollow cylindrical.
3. The device for femoral angle restoration and verification as claimed in claim 1, wherein: the second guide plate (2) is designed according to the lateral parameters of the femur.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761750.6A CN111870329B (en) | 2020-07-31 | 2020-07-31 | Device and method for femoral angle recovery and verification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761750.6A CN111870329B (en) | 2020-07-31 | 2020-07-31 | Device and method for femoral angle recovery and verification |
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| CN111870329A CN111870329A (en) | 2020-11-03 |
| CN111870329B true CN111870329B (en) | 2021-07-27 |
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