1 Stable joints
For example, polio remnants are associated with convulsions and knees, muscles that control the extension of the knee joint are paralyzed, and the knee joint is unstable and unstable. With a brace, the knee joint can be controlled in a normal extended position for weight bearing. In patients with paraplegia, the knee joint cannot be stabilized in a straightened position when standing up, and it is easy to flex and bend forward. Using a brace can prevent knee flexion. Another example is when the musculature is completely paralyzed, the musculature becomes loose enough to hold the foot. It is also possible to use a brace that is attached to the shoe to stabilize the foot and make it easier to stand and walk.
2 protect the bone graft or fracture to replace the weight
For example, after the femoral shaft or humeral shaft has a large segment of bone defect to perform free bone grafting, in order to ensure the complete survival of the bone graft and prevent the occurrence of bone fracture prior to having a negative gravity, it can be protected by a lower limb brace. Gravity is transmitted through the brace to the ischial tuberosity, thereby reducing the weight of the femur or tibia. Another example is an ankle injury that can be brace protected before it has completely healed.
3 correct deformity or prevent deformity increase
For patients with mild scoliosis below 40°, a brace can be worn to correct scoliosis and prevent it from becoming worse. For minor hip dislocation or subluxation, a hip abduction stent can be used to reposition the dislocation. For sagging of the foot, a bracket attached to the shoe may be used to prevent sagging of the foot or the like. To ease the headache and flat foot disease plus insole is also a kind of brace.