Osteotomy gage with integration of tibia platform and femur far end platform and measuring and locating method

Abstract

The invention discloses an osteotomy gage with integration of a tibia platform and a femur far end platform. The gage comprises an osteotomy locator and a measurement locator; the osteotomy locator comprises a tibia platform osteotomy locator and a femur far end platform osteotomy locator, the tibia platform osteotomy locator comprises a first body and a plurality of first osteotomy grooves formed in the first body, the femur far end platform osteotomy locator comprises a second body and a plurality of second osteotomy grooves formed in the second body, the first body and the second body form an integrated structure, and the first osteotomy grooves and the second osteotomy grooves are parallel to each other; the measurement locator comprises a locating rod, a sleeving tube which is arranged on the locating rod in a sleeving mode and matched with the locating rod in a sliding mode and a cross plate fixed to the sleeving tube, one end of the locating rod is connected with the osteotomy locator, the locating rod is perpendicular to the first osteotomy grooves, and the cross plate is perpendicular to the locating rod. By means of the integrated osteotomy gage, the problem is effectively solved that the end surface of a tibia is not parallel to the end surface of a femur in the prior art.

Description

Technical field [0001] The invention relates to medical equipment, in particular to an integrated osteotomy gauge for tibial platform and femoral distal iliac platform and a measurement positioning method. Background technique [0002] One of the primary goals of artificial knee replacement surgery is to restore the mechanical force line of the lower limbs, so that the center of rotation of the hip joint, the midpoint of the knee joint and the midpoint of the ankle joint are located on a imaginary lower limb force line on the coronal plane. Correct osteotomy is the basis for obtaining good alignment of the lower limbs after surgery. [0003] Artificial knee replacement surgery requires osteotomy of the tibia and femur. In the prior art, tibia osteotomy is completed by tibial osteotomy, and femoral osteotomy is completed by femoral osteotomy. Tibia osteotomy gauge and femoral osteotomy gauge are two independent parts, which will bring the following problems: 1. Increase the cost; 2...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an integrated osteotomy gauge and measurement and positioning method for tibial plateau and femoral distal iliac plateau, to solve the problem that the tibial end face and femoral end face are not parallel in the prior art

The present invention integrates the tibial osteotomy gauge and the femoral osteotomy gauge together, the overall manufacturing cost is lower, and the tibial osteotomy and the femoral osteotomy can be operated at one time, which is convenient for doctors to perform the operation; the osteotomy slot of the tibia and the osteotomy of the femur The grooves are integrated and manufactured in one piece, and the parallelism is good. When combined with the one-time positioning during osteotomy, the error caused by positioning is reduced, and the problem that the tibial end surface and the femoral end surface are not parallel in the prior art is effectively solved.

Images