A knee tibial plateau prosthesis

Abstract

The present invention provides a knee joint tibial plateau prosthesis, which includes a tibial plateau prosthesis and a tibial tubercle prosthesis, wherein the tibial tubercle prosthesis is arranged at the tibial tubercle of the tibial plateau prosthesis, and the tibial tubercle prosthesis is externally convex. Because the part of the tibial plateau prosthesis is a trabecular bone structure, there is a concave setting on the trabecular bone structure, which is used for placing the tibial tubercle from the insertion point of the patellar tendon to connect the patellar tendon to free the lower bone fragment. A solid beam with smooth surface is arranged across the notch of the beam, the beam and the bone trabecular structure are integrally arranged, and the prostheses on both sides of the beam are symmetrically provided with patellar ligament suture holes. Wherein, the placement groove can provide a replantation space for the bone fragment below the patellar tendon to be freed, and ensure that the patellar ligament is completely implanted on the tibial plateau prosthesis. The stress is dispersed, and the beam and the trabecular bone structure are integrally arranged, which further prevents the beam from loosening due to the long-term expansion and contraction of the patellar ligament.

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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