External fixing and locking nail plate system for treating femoral intertrochanteric fracture

Abstract

The invention discloses an external fixing and locking nail plate system for treating femoral intertrochanteric fracture. The system comprises a thighbone locking plate, wherein a shape similar to the shape of the skin on the outer side of the hip of a human body is formed on the inner surface of the thighbone locking plate; an upper main locking hole, a lower main locking hole, an upper sub locking hole, a lower sub locking hole, an upper main locking screw, a lower main locking screw, an upper sub locking screw, a lower sub locking screw and a lower locking screw are formed on the thighbone locking plate; the upper main locking hole, the lower main locking hole, the upper sub locking hole and the lower sub locking hole are provided with internal screw threads and countersunk heads; the upper main locking screw, the lower main locking screw, the upper sub locking screw, the lower sub locking screw and the lower locking screw are provided with first threaded parts, second threaded parts and smooth screw rods; and the second threaded parts of the upper main locking screw, the lower main locking screw, the upper sub locking screw and the lower sub locking screw are coarse threads. The system is arranged on the outer side of the human body and is good in fixing effect. After surgery, a patient can conveniently wear trousers, nursing is convenient to perform, the operation wound is small, the surgery cost is low, and the system can be taken out through outpatient service after the fracture is healed and is particularly suitable for patients with poor cardio-pulmonary function.

Description

technical field [0001] The invention relates to an external fixation device for femoral intertrochanteric fractures, in particular to an external fixation locking nail-plate system for the treatment of femoral intertrochanteric fractures for frail and osteoporotic elderly people, and belongs to the technical field of femoral fracture fixation. Background technique [0002] The upper end of the femur includes the femoral head, the femoral neck, and the size and size of the trochanters. The fracture that occurs from the base of the femoral neck to above the level of the lesser trochanter is called an intertrochanteric fracture. It is more common in the elderly over 60 years old. Due to osteoporosis in the elderly, the lower limbs suddenly twist or sharply when they fall. Fractures can occur due to excessive abduction or adduction, or direct impact of external force on the greater trochanter. The treatment of intertrochanteric fractures is one of the most challenging treatment...

AI Technical Summary

Problems solved by technology

4. Locking plate fixation: The latest internal fixation plate, the unique technology of the locking plate makes it not only the role of the internal fixation plate, but also the role of the internal fixation bracket. There is a certain distance between the plate and the bone surface, so that the bone The blood circulation is relatively improved, but the existing proximal femoral locking and releasing plate is relatively weak, and the incidence of internal fixation failure caused by interrupting the plate and withdrawing the screw in clinical application is high

The above treatment methods all require open surgery, the trauma is large, and the cost of surgery and equipment is expensive. After the fracture heals, it needs to be hospitalized again for surgery to remove it. Old people with cardiovascular and cerebrovascular diseases cannot open surgery, and their families often refuse open surgery. program, passive choice of conservative treatment

External fixation brackets do not require open surgery, but the existing external fixation brackets are bulky and clumsy, inconvenient to care for, and the existing devices and methods are not the best choice for intertrochanteric fractures in the elderly

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