Tibia osteotomy device

Abstract

The tibia osteotomy device comprises an osteotomy assembly, a fixing assembly and a measuring part, the osteotomy assembly comprises an osteotomy guide plate and a mounting frame which are connected with each other, the osteotomy guide plate is provided with an osteotomy groove, and the mounting frame is used for being fixed to the lower limbs of a patient and can stretch out and draw back; the fixing assembly is detachably connected to the osteotomy guide plate, the measuring piece is movably connected with the fixing assembly and comprises a flat straight part, a first bent part and a second bent part, the flat straight part is in a flat plate shape, and the first bent part and the second bent part are connected to the two opposite ends of the flat straight part respectively and bent towards the same side relative to the flat straight part. According to the tibia osteotomy device, the measuring piece abuts against the posterior condyle of the femur, the posterior condyle of the femur serves as a measuring reference, the measuring accuracy cannot be affected by abrasion of the tibia articular surface or the distal end articular surface of the femur, and tibia osteotomy can be accurately conducted through the osteotomy assembly after the measuring piece is detached.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a tibial osteotomy device. Background technique [0002] During unicompartmental knee replacement surgery, tibial osteotomy is required to allow proper tibial prosthesis installation. The accuracy of osteotomy will directly affect the result of prosthesis installation. [0003] Due to long-term strenuous activities, degeneration, and osteoarthritis, the cartilage of the knee joint is worn away, which in turn causes varying degrees of pain. Typically, the articular surfaces of the distal femur and tibia experience more wear. In the case of unilateral knee compartment disease, the use of unicompartmental knee arthroplasty can achieve the goals of minimal trauma, small incision, less osteotomy, low infection rate, and rapid recovery. [0004] The current traditional tibial osteotomy method is to use a probe to refer to the lowest point of the tibial articular surface,...

AI Technical Summary

Problems solved by technology

[0005] Based on this, the present invention provides a tibial osteotomy device, which effectively solves the technical problem that poor osteotomy accuracy easily leads to inaccurate osteotomy positions and affects prosthesis installation.

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