1. Which joints are prone to fracture? The shoulder, elbow and wrist joints of the upper limbs and the hip, knee and ankle joints of the lower limbs are prone to fracture. 2.How soon after the fracture do I start functional exercise? Does wearing a cast or brace affect exercise? Functional exercise after fracture surgery is mainly based on the type of fracture, the way of fixation and the degree of reliability. In principle, functional exercise should be started early on the basis of strong internal fixation, usually within 1 week after the fracture is treated with internal fixation. Prolonged wearing of a cast and immobile brace will affect the exercise. 3.What is joint adhesion? When do joint adhesions usually occur? Joint adhesions are stiffness and immobility of the joint, and significant limitation of joint mobility. Joint adhesions usually occur after fracture surgery when functional exercise is too late or even not performed, such as elbow joint 6 weeks after surgery without functional exercise is prone to adhesions. 4.How to prevent joint adhesions? According to the advice of the physician and the rehabilitation specialist, the whole process of functional exercise should be carried out early, properly and correctly. 5.How to treat the formed joint adhesions and stiffness? Can rehabilitation exercises be “practiced”? Is it possible to recover from joint adhesions without pain? After joint adhesions, it is possible to restore some of the joint mobility through reasonable rehabilitation exercises, but the rehabilitation is difficult and will be accompanied by certain pain. If rehabilitation exercises cannot solve the joint adhesions, joint adhesion release surgery should be performed at an optional stage, and proper functional exercises should be performed after the surgery. 6.What is osteointegration? Can excessive or premature rehabilitation lead to osteochondrosis? If the fracture healing time is longer than the normal time required for healing (usually 3-6 months) and the fracture end still does not appear to be connected, it is called delayed fracture healing; if the treatment time is extended (usually 9 months after surgery) and still does not achieve bony healing, it is called bone nonunion. Excessive and premature rehabilitation training may restrict the healing of the fracture. The rehabilitation process requires the use of appropriate strength, too much may be detrimental to the growth of the fracture end, and too little may not be able to reasonably complete the rehabilitation training. 7.Is the swelling of the affected limb after fracture not a good surgery? Does the swelling mean that rehabilitation is not done? The swelling of the affected limb after surgery is not necessarily related to the surgery, but depends mainly on the site and condition of the injury. If swelling occurs, rehabilitation training can also be performed to promote the absorption of swelling. 8.Does it mean that I can’t continue the rehabilitation training if it hurts? What should I do if I have pain? Patients are encouraged to carry out pain-free rehabilitation training, but pain-free does not mean that they do not feel any pain at all, but pain within the acceptable range of the patient. If there is significant pain during the rehabilitation training, you can pause in place for a period of time and then slowly proceed with the rehabilitation exercise. 9.Do you practice joint straightening and bending continuously? Or should I practice straightening or bending first? To what extent should I bend and straighten? During the rehabilitation, the flexion and extension of the joint must be exercised, taking the healthy side as the control, and try to maintain the same degree of activity as the healthy side. 10.What should I do if I can’t do the rehabilitation movements properly? Follow the advice of the rehabilitator and do the exercises slowly and gradually, and try to complete the whole rehabilitation activities. 11.Does it mean that if I practice more, I will recover faster? Rehabilitation training is not just pursuing the number of exercises, but should adopt a full, continuous and appropriate amount of rehabilitation to help recovery, while wrong and incomplete training is not conducive to functional recovery. 12.Do I need to apply ice after rehabilitation training? How long is it appropriate to apply ice? After rehabilitation training, ice packs should be applied for 20 minutes. 13.To what extent can I recover through rehabilitation exercises in general? The extent to which rehabilitation exercises can be recovered depends firstly on the severity of the injury and the subsequent treatment effect, and is also limited by the level of rehabilitation, the purpose of which is to make its ability to reach a nearly possible high level. 14.Postoperative patients have one arm (leg) thick and one arm (leg) thin, what is the matter? Can it be recovered? This is due to disuse muscle atrophy caused by long-term immobilization of the affected limb. Generally, through the correct method of exercise, it can be restored to the original level as much as possible. 15.Is osteoporosis of the affected limb also the cause of low activity? Can it be restored after normal activities? It is possible that long-term fixed activities of the affected limb may lead to osteoporosis, and it is possible for young people to recover to the original level after resuming normal activities.