External fixation stent is a minimally invasive surgery for tubular bone fracture of the extremities, then for this surgery we should pay attention to the following matters: First, to avoid nerve and vascular injury, for example, the external fixation stent of the tibia should be on the medial side, because the medial side of the tibia belongs to the subcutaneous bone, after the subcutaneous fat is the bone, you can enter the needle through the medial side, which can avoid the nerve and vascular injury, and is also conducive to the reset of the fracture This can avoid nerve and blood vessel damage and facilitate fracture repositioning. The femur should be on the lateral side because the important nerves and blood vessels are on the medial or posterior side of the thigh, so the needle can be inserted from the lateral side to avoid damage to the nerves and blood vessels. Secondly, the external fixation brace usually has four pin channels, and the pin channels should be dripped with alcohol every day to prevent the infection of the pin channels is very important. Thirdly, X-rays should be reviewed regularly, and the external fixation brace can be loosened and tightened and pressurized.