Tibia defect patch set and using method thereof

Abstract

The invention discloses a tibial defect patch set which comprises a supplementing prosthesis and a supplementing tool, the side face, right facing tibial plateau defects, of the supplementing prosthesis is of a bone trabecula structure, a screw hole is formed in the supplementing prosthesis, and a screw is arranged in the screw hole. The supplementary prosthesis provided by the invention is matched with a special supplementary tool, can be independently used without being matched with a tibia support, and can also be matched with prostheses of other manufacturers for use; the prosthesis has multiple specifications and models, and due to the adoption of an anatomical structure design, a defect part can be better covered, and excessive bone mass is prevented from being removed; the operationis convenient and easy; the prosthesis structure adopts a bionic design, and the fixation mode adopts screws and organisms for fixation, so that the short-term and long-term stability of the prosthesis is facilitated.

Description

Technical field [0001] The invention relates to the technical field of medical auxiliary equipment, in particular to a tibia defect patch kit and a method of use thereof. Background technique [0002] Knee osteoarthritis (KOA) is a degenerative disease that causes knee joint pain and dysfunction in the elderly, and total knee replacement (totalknee arthroplasty, TKA) is one of the most effective treatments for end-stage KOA . With the rapid increase in the number of TKA operations, problems (such as bone defects) during the initial or revision TKA operations have also increased. In particular, the tibial plateau defect results in the lack of effective support for conventional knee joint prostheses, which greatly increases the difficulty of prosthesis implantation and the failure rate of surgery. At present, clinically, for tibial plateau defects during TKA, the commonly used repair methods include autologous or allogeneic bone transplantation, simple bone cement technology, and...

AI Technical Summary

Problems solved by technology

Bone defects in the tibial articular surface can lead to insufficient support of the installed prosthesis, which is an important reason for surgical failure.

[0004] At present, the main structure of the prosthesis on the market is a block-shaped prosthesis, and most of the defect parts are arc-shaped. In order to make the block-shaped prosthesis fit the arc-shaped prosthesis, it is necessary to trim the arc-shaped and the defect into a block. , which will lead to the removal of too much bone mass, so that the patient will lose too much bone mass, making it difficult for the knee joint revision

In addition, the existing prosthesis needs to be used together with the tibial support of its company, and the connection method with the tibial defect is bone cement connection. The prosthesis cannot form a relatively stable structure with the tibia, which is not conducive to the postoperative recovery of the patient.

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