Knee joint tibial plateau prosthesis

Abstract

The invention provides a knee joint tibial plateau prosthesis. The prosthesis comprises a tibial plateau prosthesis and a tibial tubercle prosthesis, wherein the tibial tubercle prosthesis is arrangedat tibial tubercle of the tibial plateau prosthesis, the part, bulging out of tibial plateau prosthesis, of the tibial tubercle prosthesis is of a bone trabecula structure, a placement groove which is arranged in a concave manner and used for connecting the tibial tubercle to a patellar tendon free lower bone block at a patellar tendon stop point is formed in the bone trabecula structure, a solidcross beam with a smooth surface is arranged at a groove opening of the placement groove in a spanning manner, the cross beam and the bone trabecula are integrally arranged, and patellar ligament suture holes are symmetrically formed in the prosthesis on two sides of the cross beam, wherein the placement groove can provide a back implantation space for the patellar tendon free lower bone block toensure that the patellar ligament is completely implanted in the tibial plateau prosthesis, the patellar ligament can be integrally wound and fixed through the cross beam, stress dispersion of the patellar ligament can be avoided, the cross beam and the bone trabecula structure are integrally arranged, and looseness of the cross beam under long-term telescoping drive of the patellar ligament is further avoided.

Description

technical field [0001] The invention relates to the technical field of human bone prosthesis replacement, in particular to a knee joint tibial plateau prosthesis. Background technique [0002] Primary and secondary malignant bone tumors are motor system tumors that seriously threaten the survival and quality of life of patients. With the development of surgical techniques, the innovation of tumor imaging technology and the development of neoadjuvant chemotherapy for patients with malignant tumors, limb salvage surgery has become a consensus in the treatment of malignant bone tumors. A knee prosthesis is a surgical implant used to replace the knee joint. It is used in superficial knee replacement surgery of the knee to treat the damaged knee and replace it with a knee prosthesis. Existing knee joint prosthesis mainly comprises: the femoral prosthesis that is used to be connected with the femur of human body and the tibial plateau that is used to be connected with the tibia o...

AI Technical Summary

Problems solved by technology

Existing knee joint prosthesis mainly comprises: the femoral prosthesis that is used to be connected with the femur of human body and the tibial plateau that is used to be connected with the tibia of human body, and is positioned at the liner between femoral prosthesis and tibial plateau; Prior art In the tibial plateau, the patellar ligament is generally fixed by buckling and fixing with a screw plate. Due to the movement of the knee joint, the patellar ligament will expand and contract at a high frequency when the knee joint is moving. , and then it is necessary to revise the prosthesis or cause the failure of the prosthesis replacement, which will bring unnecessary harm and loss to the patient

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