Femoral condyle far end bone defect osteotomy positioner

Abstract

The embodiment of the invention provides a femoral condyle far end bone defect osteotomy positioner. The femoral condyle far end bone defect osteotomy positioner comprises a thigh bone far end bone defect osteotomy module, a sliding locking and positioning module and a thigh bone far end ectropion angle positioning module, wherein the sliding locking and positioning module is arranged at the rearpart of the thigh bone far end bone defect osteotomy module, the thigh bone far end ectropion angle positioning module is arranged below the sliding locking and positioning module, a mounting surfacebeing attached to the dorsal condyle of the thigh bone is arranged on the front side of the bottom of the thigh bone far end bone defect osteotomy module to be attached to the dorsal condyle of the thigh bone, and the osteotomy stability can be guaranteed. The functions of correcting left and right leg femoral condyle far end inside and outside bone defect osteotomy and positioning left and rightleg ectropion angle adjusting positioning are integrated, continuous ectropion angles of 0-9 degrees can be selectively adjusted, positioning the femoral condyle far end osteotomy ectropion angle andprecise correcting the thigh bone far end inside and outside bone defect of 5mm or 10mm can be greatly convenient for a doctor, and the operation efficiency is improved, the operative procedures are simplified, so that the positioner is convenient to use by the doctor, and besides, the postoperative security of the patient is guaranteed.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to an osteotomy positioner for bone defect at the distal end of the femoral condyle, which is used for total knee joint replacement surgery. Background technique [0002] The knee joint is the largest and most complex joint in the human body. Knee replacement surgery is a kind of operation that replaces all or part of the damaged natural knee joint of a patient with a knee joint prosthesis. Knee joint replacement surgery has developed into a In mature orthopedic surgery, in total knee arthroplasty, it is necessary to perform multiplanar osteotomy on the femoral side in order to install the femoral prosthesis. [0003] Generally, it is first necessary to perform an osteotomy on the distal end of the femur, and then measure the size of the femoral condyle based on the osteotomy surface, and determine the position of the osteotomy module in the next step. The bone defect o...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the bone defect osteotomy locator at the distal end of the femoral condyle is generally divided into left and right types, the left locator is used for the left knee joint, and the right locator is used for the right knee joint. The operation is complicated and the equipment cost is relatively high.

And generally only provide some limited fixed valgus angle options such as 5° or 6°, the fixed valgus angle is difficult to meet the individual choice of the existing population, causing great operational limitations to the surgical operation

In addition, there is no better way to repair the bone defect of the distal femur. The operation depends entirely on the experience of the doctor. If the doctor makes a wrong judgment and the filling prosthesis in the distal femur is unbalanced, it will directly affect the patient's physiological line of force and cause surgery. fail

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