When can you start rehabilitation exercise after surgery Post-operative rehabilitation exercise should be formulated by the doctor according to the patient’s primary condition, surgical incision access, surgical procedure, prosthesis requirements, local knee condition, systemic status and complications, the patient’s mental and spiritual status, age and other information. The implementation of the rehabilitation program is carried out by the patient himself, his family and the medical staff. Generally 2-3 days after the drain is removed, the knee joint mobility is restored; followed by muscle strength recovery training. Postoperative rehabilitation exercise how to master the amount of exercise Rehabilitation exercise daily flexion and extension activities are not in the quantity, but in the quality, to try to straighten and flex the knee joint to a certain degree, so that there is progress every day, if the number of activities is too high, the number of flexion and extension activities must be reduced when there is swelling of the joint. What does postoperative rehabilitation include? Ankle pump exercise: This exercise can be done in bed from the day after surgery. The patient will straighten the knee and dorsiflex the ankle, then try to contract the thigh and calf muscles for at least 6 seconds, and then relax completely. This can make the quadriceps muscle isometric contraction, preventing muscle atrophy. There is also rotation of the ankle joint and random movement of the toes, which promotes blood return. The exercises should be performed in groups, 5-10 times per group, 3-6 groups per day. Leg press exercises: on the 2nd day after surgery, patients can sit up and practice pressing the knee joint. Straighten the leg on the bed, use the soft cushion on the heel, and put both hands on the top of the knee, gently press down, make the leg straighten as much as possible, each time should be maintained for about 5 minutes, to the extent that the patient can tolerate the pain, this is the best way to exercise straightening of the leg. Straightening the knee after artificial knee replacement is much more difficult than flexing the leg, and equally important. Only with a straight leg can you walk normally without pain. Straight leg raising exercises: Start practicing on the 3rd day after surgery. Straighten the knee with force and dorsiflex the ankle, then raise the whole leg by 30°, hold it for a few seconds and then lower the leg and relax it completely. Exercises should be performed in groups of 5-10 repetitions each, 3-5 sets per day. The exact amount of exercise depends on the patient’s physical condition. If the amount of exercise is too much at the beginning, soreness in the anterior thigh will occur. Leg bending exercises: start practicing from the 3rd day after surgery. At the beginning, it can be done on the side of the bed, the patient sits on the side of the bed and relaxes naturally, the calf hangs down to the bed by gravity, and it can reach 90 degrees; then put the healthy limb to the front of the affected limb, and press it backward to increase the angle of bending the knee, and the size of the exertion can be tolerated to the extent. If you can maintain the force for a few minutes, the effect is better. Active knee flexion and extension activities: patients start practicing on the 3rd day after surgery under the guidance and help of the rehabilitator. It is used to restore the muscle strength of quadriceps and N cord muscle; when the pain is less severe after surgery, it is carried out at the same time of using the continuous passive mobilizer exercise. How should I eat properly after surgery? On the day after surgery: after 6 hours of fasting, semi-liquid food, such as rice porridge, noodle soup, egg custard, etc. can be taken. The next day: general food can be fed, but attention should be paid to increase nutrition after surgery, high protein, high vitamin, low fat easy to digest diet, such as fish, lean meat, eggs, fresh soy milk, soy products, fresh fruits (kiwi, oranges, apples, etc.) At the same time, due to the bedridden after the operation, the intestinal peristalsis is slowed down and constipation is prone to occur, attention should be paid to increase the intake of crude fiber food, such as fresh vegetables (chives, artemisia stalks, celery, etc.), more fruits, such as Banana, you can also drink honey water, in addition to regular massage of the abdomen, from the right upper abdomen to the right lower abdomen to the left upper abdomen to the left lower abdomen, in order to promote intestinal peristalsis, to prevent constipation. Avoid eating too much spicy food and stimulating food such as strong coffee. What diet can promote bone end and wound healing? After the patient can eat orally after the operation, he/she has to go through the process of fluid, semi-fluid and general diet. The following nutrients can promote wound healing: supply of high-protein, high-sugar diets: protein supplementation must be accompanied by adequate supply of carbohydrates to participate in the endogenous metabolism of proteins, which can reduce wound edema, and prevent infections; supply of collagen-rich pork rinds or pig trotters: these two can provide exogenous proteins to synthesize collagen fibers and proteoglycans, as well as high amounts of zinc and Glycine, proline; copper-rich foods: lean meat, liver, aquatic products, shrimp, beans, cabbage, mushrooms, chickpeas, wheat, coarse grains, almonds, walnuts; zinc-rich foods: oysters, shrimp, purslane, liver, sesame, soybeans, lean pork, green beans, scalloped fish, carp; iron-rich foods: animal liver, heart, kidneys, animal blood, egg yolks, shrimp, lean meats, fish as the preferred choice; followed by green leafy vegetables, fruits (red fruit, grapes), and other foods. Iron-rich foods: animal liver, heart and kidney, animal whole blood, egg yolk, shrimp, lean meat and fish are preferred; followed by green leafy vegetables, fruits (red fruit, grapes), dried fruits (persimmons, jujubes), seaweed, fungus, red beans, sesame seed paste, brown sugar and other plant foods, rich in iron, can also be used, but the rate of absorption is not as good as animal foods; calcium-rich foods: fish floss, shrimp, shrimp, sesame seed paste, dry beans, soybean products, dairy products, etc., and in the vegetables, there are red snow, fennel, mustard stems, greens, Chinese cabbage and so on (for vegetables with a high content of oxalic acid). vegetables, such as spinach and amaranth, blanch them in boiling water to dissolve the oxalic acid in water, which can reduce the effect of oxalic acid on calcium absorption.) Foods rich in vitamin A: plant foods such as spinach, dried apricots, leeks, greens, fennel, lettuce leaves, mustard greens, amaranth, sherbet, carrots, sweet potatoes; animal foods such as animal livers, river crabs, eggs, butter, whole milk, duck eggs, quail eggs; Foods rich in vitamin A: fresh vegetables (tomatoes, Chinese cabbage, Chinese bok choy, etc.), fresh fruits (citrus, oranges, red fruits, fresh dates, strawberries, etc.), and wild fruits such as kiwi, prickly pear, sea buckthorn, etc. Why is there a “numbness” or “electric shock” around the wound after surgery? This is due to the regeneration of the nerves that innervate the skin outside the surgical incision, when the nerves break through the scar in the process of regeneration, it will produce “electric-like” pain sensation, the above symptoms do not affect the patient’s daily life and rehabilitation exercises, and tend to disappear after half a year on their own. Why does the affected knee joint feel swollen and warm after surgery? Within 3 months after surgery, the affected knee joint often has a low-grade fever, which is due to the body’s reaction to the prosthesis or the inflammation caused by the stimulation of the knee joint during the functional training process. This inflammation is not caused by bacterial infection, but it also has the characteristics of redness, swelling, warmth, and pain; and a small amount of joint effusion is conducive to lubrication of the joint when it is in motion. The above symptoms can gradually disappear and return to normal within six months after surgery. However, if there is obvious swelling, warmth, redness or fluid accumulation in the affected knee, attention should be drawn to it, and timely consultation with the doctor should be made to determine whether there is a late infection after surgery.