1, the methods and data provided in this plan are developed in accordance with the general routine, the specific implementation needs to be completed under the guidance of doctors depending on their own conditions and surgical conditions. 2. A certain degree of pain may exist in the early stage of functional exercises, which is unavoidable. If the pain can subside to the original level within half an hour after the exercise is stopped, it will not cause damage to the tissue and should be tolerated. 3, muscle strength exercises should be concentrated until the muscles are sore and fatigued, and then proceed to the next group after sufficient rest. The number of exercises, time, load depending on their own situation, and should be practiced at the same time the healthy side. The improvement of muscle strength is a key factor for joint stability, and must be practiced carefully. 4, in addition to the surgical limb brake protection, the rest of the body parts (such as the upper limb, waist and abdomen, the healthy side of the leg, etc.) should be practiced as much as possible to ensure physical quality, improve the overall level of circulation and metabolism, and promote the recovery of the surgical local. 5, joint mobility (flexion and extension) exercises, only 1-2 times a day, and strive to improve the angle can be. In the early stage, repeated flexion and extension should be avoided, and multiple exercises should be performed to avoid swelling. If the flexion angle does not progress for a long time (>2 weeks), there is a possibility of joint adhesions, so great attention should be paid. 6.Ice packs should be given for 15-20 minutes after surgery. If the joint swelling, pain and fever are obvious, ice can be applied again, 2-3 times a day. 7.Walk on the straight leg for 3 weeks after surgery, and you can bend naturally when sitting on the bedside or bench. 8.The side with shadow in the appendix is the affected side. 9, athletes with better muscle strength should speed up the progress and increase the load as appropriate. 10, joint swelling will accompany the entire exercise process, swelling does not increase with the angle of the exercise and activity that is normal, until the angle and muscle strength is basically back to normal swelling will gradually subside. Sudden increase of swelling should adjust the exercises and reduce the amount of activity, and in case of seriousness, timely follow-up should be made.