In the following cases, release surgery is necessary: First, after a limb fracture or a joint injury that leads to joint dysfunction, if the joint function is not restored through active exercise and conservative treatments such as physical therapy and exercise therapy, release surgery can be performed after 3 months of conservative treatment. Second, if the inflammation of the joint, the most common is frozen shoulder, there is inflammatory adhesion, through exercise therapy, acupuncture, massage and other methods of joint adhesion have not been loosened, you can also choose to do the release surgery. Third, the local soft tissue damage compression of the nerve, this situation affects the nerve function must also be done to release the surgery.