Cut-bone guide plate

Abstract

The invention discloses a 3D-printing individualized femoral neck cut-bone guide plate. The cut-bone guide plate includes a fixation part, an intertrochanteric crest fitting part and a cutting guide surface, wherein the fixation part is provided with a Kirschner pin hole and suitable for fixing the cut-bone guide plate on the intertrochanteric crest of the femur through a Kirschner pin, the intertrochanteric crest fitting part is located on the lower portion of the fixation part, the lower surface of the intertrochanteric crest fitting part is suitable for fitting the surface of the intertrochanteric crest of the femur, the front side face of the fixation part vertically and downwards extends to form the cutting guide surface that is suitable for fitting an osteotome, so that it is convenient for the osteotome to cut the femur downwards along the cutting guide surface. When applied to an artificial hip replacement operation, the cut-bone guide plate can improve the accuracy of the osteotomy operation, accurately controls the height and direction of osteotomy, thus improving the accuracy of the placement position of a femoral stem prosthesis, and is more conducive to control over the length of both lower extremities, and thus the effect of the artificial joint replacement operation is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a 3D printed individualized femoral neck osteotomy guide plate. Background technique [0002] At present, in total hip arthroplasty, the femoral neck osteotomy operation mainly relies on the experience of the surgeon. The position 10-15 mm above the lesser trochanter is selected for visual positioning and manual osteotomy, and the accuracy is poor. Due to the different levels of surgical experience of the surgeons, there is a large difference in the position of the osteotomy, which affects the position and direction of the femoral prosthesis. Complications such as unequal length of lower limbs, lameness, loosening and sinking of the prosthesis reduce the service life of the prosthesis and seriously affect the quality of life of the patient. At present, the femoral osteotomy template for total hip replacement uses the lesser trochanter, greater trochanter, and medial femo...

AI Technical Summary

Problems solved by technology

[0002] At present, in total hip arthroplasty, the femoral neck osteotomy operation mainly relies on the experience of the surgeon. The position 10-15 mm above the lesser trochanter is selected for visual positioning and manual osteotomy, which has poor accuracy.

Due to the different levels of surgical experience of the surgeons, there is a large difference in the position of the osteotomy, which affects the position and direction of the femoral prosthesis. Complications such as unequal length of lower limbs, lameness, loosening and sinking of the prosthesis will reduce the service life of the prosthesis and seriously affect the quality of life of the patient

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