CN210811346U - Adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle - Google Patents
Adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle Download PDFInfo
- Publication number
- CN210811346U CN210811346U CN201921631001.0U CN201921631001U CN210811346U CN 210811346 U CN210811346 U CN 210811346U CN 201921631001 U CN201921631001 U CN 201921631001U CN 210811346 U CN210811346 U CN 210811346U
- Authority
- CN
- China
- Prior art keywords
- intramedullary
- height
- locating plate
- condyle
- thighbone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model discloses an adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle belongs to medical instrument technical field. It includes intramedullary locating plate (1), intramedullary locating lever, distal femur bone plate and the height adjustment compensation arrangement of the femoral internal/external condyle load surface, its characterized in that: the intramedullary locating plate is characterized in that a square hole is formed in the middle of the intramedullary locating plate (1), two fixing pin holes (3) are formed in two sides of the lower portion of the intramedullary locating plate (1), two connecting holes (6) are further formed in two ends of the upper portion of the intramedullary locating plate (1), the femoral inner/outer condyle weight surface height adjusting and compensating device comprises a height compensating piece (2), an adjusting screw rod (7) and an adjusting hand wheel (8), and the height compensating piece (2) can extend out of or retract into the surface of the intramedullary locating plate (1) through the adjusting screw rod (7). The utility model has the advantages of simple structure, convenient operation, saving operation time, precisely adjusting the height of the femoral medial/lateral condyle weight surface, realizing more precise osteotomy, and the like.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle.
Background
Artificial total knee replacement surgery is a common method for treating end-stage osteoarthropathy and is now widely performed worldwide. In the artificial knee joint replacement, it is necessary to perform an osteotomy on the femoral and tibial sides to form an incision, and then implant a corresponding prosthesis to complete the operation. For the artificial knee joint replacement operation, accurate positioning, accurate osteotomy and accurate installation are key factors influencing whether the operation is smooth, the postoperative curative effect and the prosthesis life cycle.
In total knee replacement surgery, the intramedullary guide is important for the lateral femoral osteotomy due to the palpable abundance of femoral anatomical landmarks. Cadaveric studies found that the location of the femoral medullary access had a profound effect on the distal femoral osteotomy, which could result in deviations of up to 5 ° to 7 ° in the sagittal plane. The possible cause of this is the micromotion of the guide in the femoral medullary cavity. In some cases of knee joint deformity due to severe knee osteoarthritis, the deviation is particularly evident due to the loss of anatomical landmarks at the time of femoral osteotomy due to dysplasia, wear, collapse and loss of the medial/lateral condyles.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough that exists in present clinical work, the utility model aims at providing a simple structure, convenient operation, can save operation time, can accurately adjust the adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle of thighbone medial/lateral condyle heavy surface height, realization more accurate osteotomy.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides an adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle, includes intramedullary locating plate, intramedullary locating lever, thighbone distal end section bone plate and thighbone medial/lateral condyle weight surface height adjustment compensation arrangement, its characterized in that: the middle part of the intramedullary positioning plate is provided with a square hole, an outward turning positioner is arranged in the square hole, a positioning hole is arranged in the outward turning positioner, two fixing needle holes are arranged on two sides of the lower part of the intramedullary positioning plate, two connecting holes are arranged on two ends of the upper part of the intramedullary positioning plate, the distal femur osteotomy plate is connected with the intramedullary positioning plate through a connecting hole, the intramedullary positioning rod is fixed in the femur intramedullary cavity through a positioning hole, the height adjusting and compensating device for the femoral medial/lateral condyle load surface is positioned above the fixing pin hole and comprises a height compensating sheet, an adjusting screw rod and an adjusting hand wheel, the height compensation piece is fixed at the front end of the adjusting screw rod, the adjusting hand wheel is fixed at the rear end of the adjusting screw rod, and the height compensation piece can extend out of or retract into the surface of the intramedullary positioning plate through the adjusting screw rod.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model can measure the malformation degree of the axis and the inner/outer condyles of the affected femur before the operation, and the height of the bearing surface of the inner/outer condyles is restored by applying the height compensation sheet in the operation, thereby providing clear anatomical marks for the intramedullary positioning during the femur osteotomy, improving the stability of the intramedullary guider and realizing the accurate osteotomy;
2. the utility model discloses a height compensation device realizes through rotatory adjusting hand wheel, its reasonable in design, convenient, the simple structure of operation. Compared with the cushion blocks used in clinic at present, the cushion block adjusting device is simple and easy to operate, convenient and accurate to adjust, and avoids errors caused by overlarge height difference among cushion blocks of different models;
3. the utility model discloses can be simple and convenient, the accurate compensation is because of the interior/outer condyle of thighbone heavy surface height loss that causes of various reasons (the dysplasia of the interior/outer condyle of thighbone, wearing and tearing, collapse and disappearance etc.), the accuracy and the stability of location in the thighbone marrow under the specific condition effectively improve, realize more accurate osteotomy, the location error is great in the marrow under the specific condition in having avoided clinical operation, can't use the intramedullary location thighbone false body that leads to/turn up in, and the lower limbs power line that the false body/turn up arouse changes, the postoperative is painful for a long time, the function is recovered not good, the condition such as prosthesis wearing and tearing with higher speed. The purposes of improving subjective symptoms, improving life quality, prolonging the service life of the prosthesis and the like are achieved;
4. the utility model discloses easy and simple to handle, accuracy height, can use repeatedly. The operation time for repeated measurement and osteotomy in the operation is saved while the accurate osteotomy is realized, and the smooth completion of the operation is ensured; the bleeding during the operation is reduced, the infection rate and other complications after the operation are reduced, and the pain of a patient is relieved; the manufacturing cost is reasonable, the composite material can be repeatedly used, and good social and economic benefits are achieved.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic top view of the present invention in the direction of a-a.
Fig. 3 is a schematic side view of the present invention.
In the figure, 1-intramedullary positioning plate, 2-height compensation sheet, 3-fixing needle hole, 4-eversion positioner, 5-positioning hole, 6-connecting hole, 7-adjusting screw rod and 8-adjusting hand wheel.
Detailed Description
The present invention is further illustrated by, but is not limited to, the following examples. Detailed descriptions of technical features, technical solutions and technical effects of the present invention, which are well known to those skilled in the art, are omitted appropriately.
An adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle, including intramedullary locating plate, intramedullary locating lever, thighbone distal end section bone lamella and thighbone medial/lateral condyle dead surface height adjustment compensation arrangement.
Intramedullary locating plate middle part be equipped with the square hole, be equipped with the locator of turning up in the square hole, be equipped with the locating hole in the locator of turning up outward, be equipped with two fixed pinholes in the lower part both sides of intramedullary locating plate, still be equipped with two connecting holes at the upper portion both ends of intramedullary locating plate, thighbone distal end cuts the lamella and is connected with intramedullary locating plate through the connecting hole, intramedullary location pole is fixed in the thighbone marrow intracavity through the locating hole.
The utility model discloses a thighbone internal/external condyle heavy surface altitude mixture control compensation arrangement be located the top of fixed pinhole, thighbone internal/external condyle heavy surface altitude mixture control compensation arrangement includes altitude compensation piece, accommodate the lead screw and adjusting hand wheel, the front end at accommodate the lead screw is fixed to the altitude compensation piece, adjusting hand wheel fixes the rear end at accommodate the lead screw, the altitude compensation piece can stretch out or retract the surface of intramedullary locating plate through accommodate the lead screw.
The utility model discloses an operation process is: before operation, according to auxiliary examination such as X-ray, spiral CT and the like, whether the femoral medial/lateral condyle load surfaces need to be compensated for height and the degree of the femoral medial/lateral condyle load surfaces need to be compensated is determined by measuring a connecting line of the femoral distal end load surfaces of the affected limbs of a patient, a lower limb mechanical axis and an anatomical axis.
The utility model discloses at the operation in-process, treat that the thighbone distal end is opened the marrow back, be fixed in the thighbone marrow intracavity to the intramedullary location pole through the locating hole, set up thighbone distal end osteotomy valgus angle 5 degrees to 6 degrees simultaneously. According to the preoperative measurement result, when the height compensation of the inner/outer condyle of the femur is needed, the height compensation piece extends out of the surface of the intramedullary positioning plate through the adjusting screw rod when the adjusting hand wheel on the side is rotated clockwise. The height compensation plate is adjusted to a desired height according to the preoperative measurement, so that the surface of the intramedullary positioning plate is attached to the femoral inner/outer condyle weight surface. The intramedullary positioning plate is fixed at the distal end of the femur by a fixing needle through a fixing needle hole, and the distal end osteotomy plate of the femur is connected with the intramedullary positioning plate through a connecting hole. And after the femoral distal osteotomy plane is confirmed to be correct again, the femoral distal vertical osteotomy can be performed.
According to the measurement result before the operation, when the height compensation of the inner/outer femoral condyle of the side is not needed, the adjusting hand wheel of the side is rotated anticlockwise, the height compensation sheet is sunk into the surface of the intramedullary positioning plate, the surface of the intramedullary positioning plate is attached to the femoral condyle weight surface, the intramedullary positioning plate is fixed at the distal end of the femur by a fixing needle through a fixing needle hole, and the distal end bone cutting plate of the femur is connected with the intramedullary positioning plate through a connecting hole. And after the femoral distal osteotomy plane is confirmed to be correct again, the femoral distal vertical osteotomy can be performed.
Claims (1)
1. The utility model provides an adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle, includes intramedullary locating plate (1), intramedullary locating lever, thighbone distal end section bone plate and thighbone medial/lateral condyle deadweight face height adjustment compensation arrangement, its characterized in that: the intramedullary locating plate is characterized in that a square hole is formed in the middle of the intramedullary locating plate (1), an outward turning locator (4) is arranged in the square hole, a locating hole (5) is formed in the outward turning locator (4), two fixing pin holes (3) are formed in two sides of the lower portion of the intramedullary locating plate (1), two connecting holes (6) are further formed in two ends of the upper portion of the intramedullary locating plate (1), the distal femur osteotome plate is connected with the intramedullary locating plate (1) through the connecting holes (6), the intramedullary locating rod is fixed in a femur marrow cavity through the locating hole (5), the femur inner/outer condyle weight surface height adjusting and compensating device is located above the fixing pin holes (3), the femur inner/outer condyle weight surface height adjusting and compensating device comprises a height compensating piece (2), an adjusting screw rod (7) and an adjusting hand wheel (8), the height compensating piece (2) is fixed at the front end of the adjusting screw rod (7), the adjusting hand wheel (8) is fixed at the rear end of the adjusting screw rod (7), and the height compensation sheet (2) can extend out of or retract into the surface of the intramedullary positioning plate (1) through the adjusting screw rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921631001.0U CN210811346U (en) | 2019-09-27 | 2019-09-27 | Adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921631001.0U CN210811346U (en) | 2019-09-27 | 2019-09-27 | Adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210811346U true CN210811346U (en) | 2020-06-23 |
Family
ID=71269209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921631001.0U Expired - Fee Related CN210811346U (en) | 2019-09-27 | 2019-09-27 | Adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210811346U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658244A (en) * | 2020-07-01 | 2020-09-15 | 徐志宏 | Adjustable condyle holding device for knee joint replacement |
-
2019
- 2019-09-27 CN CN201921631001.0U patent/CN210811346U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111658244A (en) * | 2020-07-01 | 2020-09-15 | 徐志宏 | Adjustable condyle holding device for knee joint replacement |
| CN111658244B (en) * | 2020-07-01 | 2023-12-15 | 徐志宏 | Adjustable condyle embracing device for knee joint replacement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Miniaci et al. | Proximal Tibial Osteotomy: A New Fixation Device. | |
| MAQUET | Valgus osteotomy for osteoarthritis of the knee | |
| US9668749B2 (en) | Adjustable revision guide | |
| US7011664B2 (en) | Resection guide alignment apparatus | |
| CN109700498B (en) | Tibia proximal osteotomy device | |
| Pang et al. | Comparison of total knee arthroplasty using computer-assisted navigation versus conventional guiding systems: a prospective study | |
| CN204909559U (en) | Individuation knee joint thighbone distal end cuts bone conduction board | |
| CN108294805B (en) | Universal femur osteotomy guider for congenital acetabular dysplasia | |
| CN210811346U (en) | Adjustable osteotomy device of full knee joint replacement operation thighbone anterior condyle | |
| CN109700499A (en) | A kind of distal femur osteotomy device | |
| CN202313815U (en) | Extramedullary indicating locator for implanting knee joint single condyle replacement femoral prosthesis | |
| CN107595355B (en) | Orthopedics is with thighbone distal end osteotomy device and positioner thereof | |
| CN210932053U (en) | A supplementary bone conduction board that cuts for total knee joint replacement art | |
| CN214484742U (en) | Tibia straight/eccentric extension rod | |
| CN205054339U (en) | Individuation knee joint shin bone near -end cuts bone conduction board | |
| CN112603605A (en) | Double-acting knee joint prosthesis consisting of double-acting half-knee joint femoral prosthesis and tibia straight/eccentric extension rod | |
| CN210811347U (en) | Adjustable osteotomy device of full knee joint replacement operation thighbone postcondyles | |
| WO2010125474A2 (en) | Device and method of determination of the knee flexion axis in computer assisted surgery | |
| CN220089869U (en) | Adjusting plate in knee joint operation | |
| CN110575221A (en) | Bone cutting guide plate for accurate treatment of tibial tubercle internal shift operation and application thereof | |
| CN219763474U (en) | Femur distal end five-in-one osteotomy guide | |
| CN214387787U (en) | Double-acting knee joint prosthesis consisting of double-acting half-knee joint femoral prosthesis and tibia straight/eccentric extension rod | |
| CN217138177U (en) | External targeting positioning device for artificial knee joint femur distal osteotomy | |
| CN212939914U (en) | Device for percutaneous reduction and fixation of distal femur comminuted fracture | |
| CN204181748U (en) | Lateral condyle two-dimensional measurement device in femur |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20210927 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |