Surgical kit for bone transplantation for femoral head necrosis

Abstract

The invention discloses a surgical kit for bone transplantation for femoral head necrosis, comprising an instrument box, a first bone knife, a second bone knife, a Kirschner wire, ring drills, bushings, a bone extractor and a flat file. The Kirschner wire is added to support and guide use of other instruments, ensuring cutting accuracy of a necrotic bone. By setting the bushings and sleeves, a doctor can freely choose positions of needles and positions of the sleeves, so that the surgical kit has a wide range of applications and can effectively respond to unexpected situations; The flat file is set to ensure flatness of the top of an excision site, so that the top of a bone graft is in closer fit with the bottom of the excision site, avoiding defects caused by the incompatibility of the bone graft, and promoting the healing of the bone graft and surrounding bone tissues. By fitting a sliding weight with a sliding rod, a ring pull is dragged. By connecting the ring pull with the bushings and setting a waist-type hole on the ring drills, the bushings and the ring drills can be conveniently and rapidly taken out one by one.

Description

technical field [0001] The invention relates to a tool kit for surgical operations, in particular to a surgical tool kit for osteonecrosis of the femoral head. Background technique [0002] Bone grafting for femoral head necrosis is one of the treatment methods for femoral head hip-preserving surgery. It is suitable for early femoral head necrosis, especially for patients with small lesions, uncollapsed bones, and younger patients. The technique includes core decompression alone and vascularized bone grafting. Among them, vascularized bone grafting is an important surgical method for hip-preserving treatment of femoral head necrosis in the early and middle stages. Compared with simple core decompression, vascularized bone grafts are more likely to survive due to their abundant blood supply. They are suitable for the early stage of necrosis and when the surface of the femoral head has not been completely destroyed and collapsed. By removing sequestrum and implanting vascula...

AI Technical Summary

Problems solved by technology

However, FVFG still has many limitations: ① the operation is complicated and the operation time is long; ② the surgical incision is large; ③ it requires certain experience in microsurgical techniques, and there is a certain failure rate in anastomosis, so it is difficult to carry out in primary medical institutions.

In 1986, Academician Chen Zhongwei proposed the method of iliac bone flap transplantation of the deep circumflex iliac artery. In 2005, Zhao Dewei et al. proposed the transplantation of the lateral circumflex femoral artery branch vessel through the anterior approach to treat femoral head necrosis. The surgical steps are improved, and the success rate of bone grafting is improved, but there are still limitations such as unstable blood vessels and cumbersome surgical approach.

[0004] However, there are no matching surgical tools at present, relying on traditional instruments for surgery, and the location of necrotic focus depends on intraoperative C-arm electromechanical dialysis, there is radiation damage and X-ray positioning is not accurate

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