Patients always have a variety of questions, and often fall into despair, always thinking that their suffering is different, searching all kinds of doctrines, but only when they really recover, they slowly forget those questions. Here are some answers to some common questions in several chapters. Let’s start with the post-operative ACL reconstruction: 1. What is the chronological progression of the post-operative “angle” of the ACL? Our plan is to start dropping the leg at the bedside 4~7 days after surgery, usually reaching 90° in 7~15 days, with individual differences, some fast and some slow. There is little chance of stiffness in the joint past 90°, and there is no problem returning to normal past 110°. During this process we call active flexion at the bedside “dropping the leg”, which relies mainly on the weight of the lower leg to drop. In the first 3 months, we refer to the bending angle as “bending the leg” with the assistance of a doctor or other person. Of course, there are many people do not need to passively bend the leg, in a short period of active flexion can reach the standard, even good enough to dare not let him bend again. 2, today (or this week) the angle of active flexion is not as large as the previous day (or last week), is it normal? Whenever this situation arises, many people are sad and anxious, feeling that the previous work is lost. In fact, it is not necessary at all, this situation is normal. There are several reasons for this, one is that the previous day (or the previous week) the hanging leg is too long, bending (actually squeezing) too long or improperly caused by the knee joint swelling (each bending leg will lead to different degrees of swelling) and thus restricted flexion; secondly, the human body is not a machine can not be bent to 100 ° today, tomorrow will definitely bend over greater than 100 °, he has active cells every moment in the construction of different structures, straight talk is The tissue in the knee joint is creating adhesions, but within a certain time his adhesions are not soon to be stabilized; third, the panic left by the previous pain, psychological factors will aggravate the muscle tension. Fourth, the muscles are gradually atrophying, the strength is weakening, especially after 6 weeks of flexion “stagnation”, at this time to remember the four words “let nature take its course”, there is no need to dwell on this, even if it does not reach the right angle now, after a period of time will reach, the degree will not be a problem. is not a problem. Of course, we must control the number of leg bends and leg drops, as described below. 3, how many times a week the knee flexion? Do I need to bend my leg every day? How long does it take to bend the leg to the maximum angle? Knee flexion is divided into active and passive, active (such as bedside leg hanging) can be multiple times a day (not more than 3 times a day within 4 weeks, not more than 10 times a day after 4 weeks), each time preferably not more than 10 minutes, after 4 weeks post-operative can be slowly flexed and extended, each time the leg hanging flexed and extended no more than 3 times, must be slow. Never repeatedly shake the calf, it will loosen the reconstructed ligaments. For leg bending (passive) training, it is better to bend the leg every other day in the early stage, but not more than 5 times a week at most, and try to finish the leg bending within 10 minutes. Too many bends will increase the swelling of the knee joint, and repeated swelling will affect the progress of rehabilitation and may lead to heterotopic ossification, after 6 weeks you can bend the leg once a week. In special cases, the doctor will make special adjustments to the bending time. Stay for 30~60 seconds after bending to the maximum angle, not too long. Ray believes that the ideal procedure is: while hanging the leg at a certain time, use the non-surgical leg or other people to assist, gradually add pressure, and when you feel a little pain, add pressure quickly in small increments to make it hurt a little and then relax, then you can repeat the above action again when hanging the leg at an interval of one day. People who can complete rehab on their own almost always do as above. If you can’t get down on yourself once, then the Regal you don’t want to see will be in front of you. It’s hard to make progress when you’re always flexing in the pain-free range, unless you’re a particularly lax joint. 4. Which is the better way to flex the knee? Why is my progress slower than his? There are a lot of methods, but Ray is a big fan of supine leg drops and seated leg drops. Supine leg drop can avoid the false angle caused by sitting hip lift, especially in the calf hanging weights gradually add pressure, the effect is good. Seated leg drops are the most convenient. Individuals vary greatly and the surgery will not be exactly the same for two people, so don’t compare the angles with each other, the fast runner and the far runner will reach the end of the line. The leg bend is just one item (or step) in the ACL rehabilitation process, don’t magnify it as the entirety of rehabilitation. Three months of straight leg walking with a brace is the key.