Surgical tool for bone grafting for osteonecrosis of femoral head

Abstract

The invention discloses a surgical tool for bone grafting for the osteonecrosis of the femoral head. The surgical tool comprises a guide needle, a trepan, a lining, a knocking rod, a flat-end file, asleeve and a sleeve handle. The surgical tool can be used for implementing the drilling decompression and bone grafting for a series of avascular necroses of femoral heads with the arteriae circumflexa femoris medialis branch intertrochanteric bone flap grafting repair operation for the osteonecrosis of the femoral head as the representative, the operation quality and bone grafting success rate are increased, and the postoperative rehabilitation is facilitated.

Description

technical field [0001] The invention belongs to the field of medical instruments, and relates to a surgical tool for bone grafting of necrotic femoral head, in particular to a detachable and ready-to-use combined surgical tool assembly for bone grafting of femoral head necrosis. Background technique [0002] Hip-preserving surgery for the femoral head is commonly used in the treatment of early femoral head necrosis, especially for younger patients, and it mainly includes simple medullary core decompression and bone graft repair with blood supply. Among them, vascularized bone grafting has been used in the treatment of femoral head necrosis for 40 years, and it is an important surgical method for hip-preserving treatment of femoral head necrosis in the early and middle stages. It is suitable for the early and middle stages of necrosis, especially for large-scale necrosis of the femoral head, when the articular surface has no collapse or early collapse. After removing the sequ...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem that the existing surgical instruments are difficult to perform the above-mentioned intertrochanteric bone flap transplantation of the medial circumflex femoral artery branch to repair femoral head necrosis, especially the operation with the transverse branch of the medial circumflex femoral artery to treat early and mid-stage avascular necrosis of the femoral head, On the basis of summarizing the advantages and disadvantages of the above-mentioned methods, the inventor designed the technique of Femoral medial circumferential vascularized bone-precisiongrafting (FMCVB-PG) and special surgical tools to repair the femoral head. Necrosis has the above-mentioned characteristics of rich blood supply of vascularized bone flap and vascularized free fibula graft. Compared with these two types of surgical techniques, it has the following advantages: 1. The operation is simple, the technique is standardized, the operation time is short, the trauma is small, Fast postoperative recovery, easy to promote, and can be extended to primary hospitals; 2. Adopting special tools through the rear approach, the bone grafting channel is more accurate, the removal of necrosis is direct and thorough, and the operation is more convenient; 3. Rotation The anatomy of the transverse branch of the medial artery is constant, the diameter of the blood vessel can reach 2mm, and the blood supply is sufficient; 4. The intertrochanteric bone block has little effect on the biomechanics of the proximal femur, reducing the risk of postoperative fracture

Images