Compression screw fixation

Because the triangular nail has no pressure and has a large volume, which may affect the blood supply, it has improved compression compression screw to produce axial compression force on the femoral neck fracture, which constitutes a pressurized mechanical structural system and promotes fracture. Heal. Generally used double-head thread compression nails, the length is 70mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm different specifications. According to the actual length of the measurement required. The front end of the nail is opened at a cutting angle of 60°, which facilitates the smooth penetration of the bone tissue through the reduction of the resistance, and the damage of the femoral head caused by the hammering is not caused by the topping or impact. Align the Ten groove of the drill clamp or the pressure screw with the Ten plate head, tighten the suspension screw, fix the drill clamp or compression screw to the Ten plate clamp, and insert the plunger. "Ten" word board. Then add the extension rod and the handle as needed. Treatment of diseases: fractures of the tibia and fibula 1. Take an X-ray film and select the appropriate length of the screw. 2, first skin traction, reduce pain and prevent shortening. 3, generally try to operate as early as 3 to 5 days after the injury, so as to avoid the bone hematoma mechanization, bone absorption, affecting the recovery and stability. Surgical procedure 1. The lateral femoral incision reveals about 3 to 4 cm of the femur outside the femoral trochanter. 2. Drill the lateral cortical bone of the femur, generally 1.5 to 2 cm below the lower edge of the large trochanter. Then guide the needle along the longitudinal axis of the femoral neck. Insert the screw into the guide pin and screw it into the needle clockwise. When the thick thread at the front end of the screw passes through the fracture line, the fine thread at the end of the screw reaches the lateral cortical bone. When the screw is tightened, the fracture end can be made due to the gap of the pitch. It acts as a pressurizer.

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