Needle internal fixation

The steel needle is thinner than the screw, the damage is small, the occupation is small, the fixation of the small piece fracture and the need to pass through the epiphysis, the steel needle is better fixed, the needle tail can be exposed outside the skin or buried under the skin, and the needle is simple; The disadvantage is that the needle body is smooth, has no threads, and the fixing force is not as good as the screw. Therefore, it is only used for children and the following situations. 1. Fractures with smaller fractures of the tendon, tendon and styloid process. 2. Unstable metaphyseal fracture, osteophyte fracture or osteophyte separation, external fixation can not maintain the reset. 3. Multiple short bones (such as fingers, palms, toes, humerus, etc.) transverse folds, short oblique folds or open fractures within 8 to 12 hours, difficult to fix by external fixation. Treatment of diseases: fractures Indication The steel needle is thinner than the screw, the damage is small, the occupation is small, the fixation of the small piece fracture and the need to pass through the epiphysis, the steel needle is better fixed, the needle tail can be exposed outside the skin or buried under the skin, and the needle is simple; The disadvantage is that the needle body is smooth, has no threads, and the fixing force is not as good as the screw. Therefore, it is only used for children and the following situations. 1. Fractures with smaller fractures of the tendon, tendon and styloid process. 2. Unstable metaphyseal fracture, osteophyte fracture or osteophyte separation, external fixation can not maintain the reset. 3. Multiple short bones (such as fingers, palms, toes, humerus, etc.) transverse folds, short oblique folds or open fractures within 8 to 12 hours, difficult to fix by external fixation. Preoperative preparation According to the fracture situation, choose stainless steel needles with different lengths and thicknesses, and prepare equipment such as hand drill, needle clamp (or wire cutter) and small hammer. Surgical procedure 1. Insert the steel needle: After the fracture is reset, the assistant maintains the steadily and stably. The operator holds the steel needle with the hand drill, drills through the cortex, and passes through the fracture line to a predetermined depth. Require a success, avoid repeated advances and retreats, affecting the fixed effect. If the fracture block is large, it can enter the two needles at an angle to each other, and the fixed forest should be secured in parallel with the needle. If the muscle attached to the fracture block has a large pulling force, the steel needle can be passed through the contralateral cortical bone to strengthen the fixation force. However, be careful not to penetrate too much soft tissue to avoid damage to important blood vessels and nerves. 2. Elimination of fissures: During the insertion process, cracks may occur between the fracture ends. After the insertion of the needles, the bone fragments should be gently slammed so that the fracture surfaces are closely connected to ensure healing. 3. Handle the needle tail: Cut the steel needle exposed outside the bone, only 2 to 3 mm, for the needle. It is best to bend the end to an angle so that it is applied to the bone surface to reduce irritation to the skin. If the internal fixation time is not long, the needle tail can be left outside the skin and wrapped with sterile gauze for easy postoperative needle removal. After the fracture is in good condition, the suture is layered.

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