Clover titanium plate fixing structure and method of femoral intertrochanteric fracture

Abstract

The invention provides a clover titanium plate fixing structure and method of a femoral intertrochanteric fracture. The structure comprises a clover titanium plate and a single leather screw. The clover titanium plate comprises an upper part and a lower part. When an femoral intertrochanteric fracture prothesis replacement operation is carried out, the clover titanium plate and the single leather screw are used for fixing the fracture at the upper end of the femur, according to the structural shape of the upper portion of the clover titanium plate, three blades are arranged in three directions respectively, and the blades are provided with a plurality of screw fixation holes. The bending-resistant, rotation-resistant and shearing-resistant functions of the fixing structure obviously exceed those of a steel wire kirschner wire, a reference point of the femoral head rotation center and the eccentric distance during prosthesis implantation is restored, postoperative limb length balance is guaranteed, tension of the gluteus medius is effectively restored, and normal functions of postoperative hip joints are guaranteed.

Description

technical field [0001] The invention relates to a clover titanium plate fixing structure and method for intertrochanteric fractures of the femur, and belongs to the field of mechanical technology. Background technique [0002] Intertrochanteric fracture is the most common hip fracture in clinical practice, which occurs frequently in the elderly and seriously endangers the health of the elderly. Trauma statistics at home and abroad in recent years have shown that the failure rate of internal fixation for intertrochanteric fractures in the elderly ranges from 10% to 30%. At present, there are mainly two surgical methods for the treatment of unstable intertrochanteric fractures in the elderly: internal fixation and artificial hip replacement. Before artificial hip replacement, the greater trochanter needs to be repaired and reconstructed. At present, the commonly used repair and reconstruction methods of the greater trochanter include: (1) steel wire binding and fixation, (2)...

AI Technical Summary

Problems solved by technology

[0004] (1) Fracture nonunion, malunion, shortened limbs, and poor functional recovery due to loosening and cutting of the internal fixation, often requiring reoperation

(2) The failure of fracture fixation due to loosening, slippage, and wire breakage of the Kirschner wire, resulting in fracture nonunion or even re-avulsion of the bone fragment, often requires reoperation

(3) Due to severe osteoporosis in elderly patients, intraosseous volumetric bone defects often appear in the greater trochanter, and even the medullary cavity of the greater trochanter is empty, leaving only a thin cortex of the greater trochanter, which is called "Eggshell-like change", and only steel wire cerclage between the fracture fragments, it is difficult to restore the stability and integrity of the anatomical shape of the greater trochanter. many hidden dangers

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