Positioning board for treating fracture of femur neck

Abstract

The invention provides a positioning board for treating fracture of femur neck. The positioning board comprises a positioning board main body and a locking screw, wherein the positioning board main body comprises an upper tuberosity supporting board part and a lower supporting plate part, a locking guide hole is formed at the middle of the tuberosity supporting board part, three locking screw holes are formed around the locking guide hole, and the three locking screw holes are in triangular distribution on the tuberosity supporting board part; a vertical sliding long hole is formed on the lower supporting plate part, and a fourth locking screw hole is formed under the supporting plate; and an arc transition is formed between the upper tuberosity supporting board part and the supporting plate part, thus an included angle theta of 10-26 degrees is formed between the tuberosity supporting board part and the supporting plate part. The axes of the four holes on the tuberosity supporting board part are parallel, and the vertical included angle Phi between the axial direction of the four holes and the supporting plate part plane is 120-135 degrees. The board surface between the upper tuberosity supporting board part and the lower supporting plate part is an arc transitional surface, thus an included angle theta of 10-26 degrees is formed between the tuberosity supporting board surface and the supporting plate surface.

Description

technical field [0001] The invention relates to a treatment positioning plate for femoral neck fractures, which is used for treating femoral neck fractures and belongs to medical orthopedic instruments. Background technique [0002] The treatment methods for femoral neck fractures are divided into conservative treatment and surgical treatment. For unstable femoral neck fractures, surgery is generally used. For patients under the age of 60 to 65, open reduction and internal fixation are often used. At present, internal fixation of femoral neck fractures mostly uses three cannulated screws. Insert the needle from under the tuberosity of the femur, pass through the tuberosity of the femur, the neck of the femur, and the head of the femur to achieve the effect of fixing the fractured end. Although this technique is difficult to fix the broken end of the fracture, since the three hollow screws are not connected to each other, and there is no other support and fixation, there are...

AI Technical Summary

Problems solved by technology

Although this technique is difficult to fix the broken end of the fracture, since the three hollow screws are not connected to each other, and there is no other support and fixation, there are obvious deficiencies: 1. During the healing process of the femoral neck, it is easy to shorten the femoral neck, 2. Poor stability, prone to adduction and displacement of the femoral head, resulting in adduction deformity of the hip joint; 3. Longer bed rest and early weight-bearing exercise cannot be performed

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