Knee joint prosthesis system and human joint repair system

Abstract

The invention provides a knee joint prosthesis system, and relates to the technical field of medical apparatus and instruments. The knee joint prosthesis system comprises a tibia plateau prosthesis and a femoral condyle prosthesis matched with each other, and an intramedullary nail body is connected to at least one of the tibia plateau prosthesis and the femoral condyle prosthesis. The knee joint prosthesis system is mainly for patients suffering from severe knee joint arthritis with deformity, the intramedullary nail body is used for being placed in a medullary cavity of a femur or a tibia, the replacement function of the artificial knee joint is achieved, and meanwhile the femur or the tibia can be strengthened and fixed; a good correction effect on the patients suffering from the severe knee joint arthritis with deformity is achieved. The knee joint prosthesis system has the advantages of being small in trauma, unnecessary in too-much osteotomy periosteum stripping, small in bone ununion risk, easy to operate, low in infection risk and the like, the center is fixed, the system is strong and reliable, a person can bear load in early period of postoperation, and the knee joint function can be restored better and faster. A human joint repair system comprises the knee joint prosthesis system and can perform repair treatment on joint injuries at different positions and in different disease degrees.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a knee joint prosthesis system and a human body joint repair system. Background technique [0002] The knee joint is a joint with complex anatomy and multiaxial movement. At present, artificial knee replacement has become a common treatment method for advanced knee arthritis, and has achieved good results. However, for patients with severe deformities of the knee joint, especially those with severe varus and valgus and internal and external rotation deformities of the tibial plateau and distal femur, it is difficult to correct the line of force and rotation with simple knee replacement + intra-articular osteotomy. If the joint space osteotomy is too large, it will cause postoperative joint relaxation, and even damage the insertion point of the medial and lateral collateral ligaments. It is necessary to cooperate with the tibial and / or femoral rotational osteotomy or wedg...

AI Technical Summary

Problems solved by technology

However, for patients with severe deformities of the knee joint, especially those with severe varus and valgus and internal and external rotation deformities of the tibial plateau and distal femur, it is difficult to correct the line of force and rotation with simple knee replacement + intra-articular osteotomy. If the joint space osteotomy is too large, it will cause postoperative joint relaxation, and even damage the insertion point of the medial and lateral collateral ligaments. It is necessary to cooperate with the tibial and / or femoral rotational osteotomy or wedge osteotomy. Fixation is necessary for proximal tibial and / or femoral osteotomy. It provides a good mechanical environment for the healing of the osteotomy end and allows early functional exercise of the knee joint, which is extremely necessary for the functional recovery of the patient's knee joint.

[0003] However, the current artificial knee joint system is not compatible with the existing internal fixation system. The overlap of the two in the use area makes the two interfere with each other in function. For patients with severe knee arthritis and deformity Treatment is difficult to achieve the desired effect

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