Tendon rupture requires prompt surgical treatment to try to restore normal function. And a certain amount of time is required for fixation after surgery, and rehabilitation is also required after the fixation time is over. It is important to note that the fixation time for tendon injuries is not uniform, for example, for biceps tendon rupture, the post-surgical fixation time is required to fix the forearm in a rotated posterior position for 4-6 weeks after surgery at an angle of 70 degrees of flexion. For triceps tendon, it is mainly fixed at 50 degrees to 70 degrees position for 3-4 weeks. For quadriceps tendon rupture, it needs to be fixed with thigh cast brace for 6 weeks. For Achilles tendon injury, postoperative fixation with thigh cast is fixed at 20 degrees to 30 degrees angle of flexion and plantar flexion position of ankle joint, generally the cast is replaced after 3 weeks of fixation and the ankle joint is adjusted to 90 degrees for another The ankle will be adjusted to 90 degrees for another 3 weeks. The surgeon’s decision is based on the patient’s condition. In the case of old injuries, the retraction of the severed end of the injury cannot be sutured directly, but requires repairing the defect with a fascial repair or with the proximal tendon membrane of the gastrocnemius muscle, which is turned downward, and the postoperative management is the same as for fresh injuries. In the above-mentioned tendon injury surgery, after the fixation time is over and the fixation is removed, but it does not mean the end of the rehabilitation training, but only the beginning of the rehabilitation training, it is necessary to carry out the rehabilitation training of the joint function in time, generally it may take one month to three months after the overall recovery.