PDL-patellar dislocation/patellar subluxation rehabilitation exercise method? In recent follow-ups of patients after patellar subluxation correction (mainly minimally invasive arthroscopic medial support band tightening + lateral support band release), it was found that some patients still had the feeling of knee instability and limpness when participating in sports activities, although they had basically resumed their daily life after surgery. Therefore, I recommend an international classic rehabilitation exercise method for patellar subluxation/hemisubluxation, which is mainly applicable to patients suffering from patellar subluxation or hemipelvectation who have not undergone surgery or are more than 6 months post-surgery, and the rehabilitation training within 6 months of surgery, it is recommended that the rehabilitation program developed by the attending physician and rehabilitation specialist should prevail. Patellar dislocation / subluxation rehabilitation exercises The rehabilitation exercises for patellar dislocation / subluxation are simple and easy to perform. The exercises focus on stretching exercises for the posterior and lateral muscles of the thigh and muscle strength exercises for the anterior thigh. PDL-1 Stretching exercises for the N cord muscle in the standing position 1.Straighten the affected leg and place the heel on a low stool about 40 cm high; 2.Take the hip joint as the axis and lean the body forward until you feel a mild pulling sensation at the back of the thigh and maintain the posture; 3.Be careful to keep the shoulders balanced and the back straight, do not turn the shoulders or arch the back; 4.During the exercises, do 3 sets of 3 times per day and insist on 15-30 seconds each time. for 15-30 seconds each time. PDL-2 Quadriceps Stretching Exercise 1. Stand laterally at the wall, with your body about 30 cm away from the wall and the affected leg outside; 2. Bend the knee joint of the affected leg backward and hold the ankle joint with your hand, and force the heel close to the hip; 3. PDL-3 Lateral leg raising exercise 1. Lie on your side with the affected leg on top; 2. Keep the affected leg straight and raise it upward about 30 cm, maintaining the posture still; 3. PDL-4 Seated quadriceps contraction exercise 1. Sitting in the lying position, straighten the affected leg and flex the healthy leg; 2. Press down the bed with force behind the knee joint (N fossa) and feel the quadriceps contract and tense; 3. PDL-5 straight leg lift exercise 1, semi-supine position, and the healthy leg knee bend, so that the sole of the foot on the bed; 2, the affected leg straight, quadriceps muscle contraction tense, and lift the leg away from the bed about 20 cm, maintain the posture of immobility; 3, pay attention to the knee joint do not bend, lift the leg not too high, leg down uniformly and slowly; 4, practice, 3 sets per day, each set of 10 times, each time adhere to the power The longer the exercise, the better. PDL-6 Step Exercise 1. Stand in a standing position with the healthy leg on the ground and the affected leg on an 8-13 cm step or brick; 2. Shift the body weight to the affected leg and step upwards onto the step, with the healthy leg off the ground; 3. PDL-7 Squatting against the wall with the ball 1.Stand with your back to the wall, feet shoulder-width apart, heels about 60 cm from the wall; 2.Put the basketball or soccer ball in the middle of your waist and force the ball against the wall backwards; 3.Slowly squat down so that the ball slides towards your shoulders, knees flexed about 45 degrees, maintain the posture; 4.Pay attention to keep your shoulders relaxed, torso straight, and move evenly and slowly when sliding; 5.Practice, daily 3 sets of 10 repetitions each, insist on 10 seconds each time. Knee stability exercises Prepare about 1.5-2 meters long elastic band or tension piece, knot both ends to make a double-strand loop, the knotted end is fixed on the doorway or bed leg, and the other end is set on the ankle joint of the healthy side leg. PDL-8 A Forward Stability Exercise 1. Stand facing the door with the body weight on the affected leg and slightly flex the knee joint; 2. Push backward on the healthy leg and pull the elastic band. PDL-9 B Lateral stability exercise 1. Turn 90 degrees so that the affected leg is close to the door and the healthy leg is away from the door; 2. Push the healthy leg outward and pull the elastic band. PDL-10 C Posterior stability exercise 1. Turn the body 90 degrees again, so that the body stands with the back towards the door and the knee is slightly flexed; 2. Push the healthy leg forward and pull the elastic band. PDL-11 D Medial stability exercises 1. Turn the body 90 degrees, so that the healthy leg is close to the door and the affected leg is away from the door; 2. Push the healthy leg inward and pull the elastic band; 3 sets of 10 reps per day. If you feel difficulty in standing on one leg, prepare a chair and hold the back of the chair with your hand to help balance. PDL-12 Knee straightening resistance exercises 1. Prepare about 1.5-2 meters long elastic band or tension piece, knot both ends to make a double-stranded loop, and fix the knotted end on the doorway; 2. Stand facing the door with the knee joint flexed 45 degrees, and put the elastic band on the affected leg behind the knee joint (N fossa); 3. There are difficulties, you can prepare a chair, hand on the back of the chair to help balance. 5. Practice 3 sets of 10 reps per day. PDL-13 standing gastrocnemius stretching exercises 1, standing facing the wall, leaning forward, holding the wall with both hands at shoulder height, legs in a lunge, the affected leg behind, and keep the full foot on the ground; 2, the affected leg heel gently rotate outward, while the body continues to tilt toward the wall, until there is a pulling sensation in the back of the calf, maintain the posture; 3, each group of exercises, you can exchange the position of the legs, each exercise 3 times; 4, Practice with 3-5 sets per day, 3 times per set, lasting about 15-30 seconds each time. PDL-14 Lateral Leg Opening and Closing Exercise 1. Lie down to the healthy side with the hip and knee slightly flexed and feet together; 2. Slowly open the affected leg and maintain it for 2 seconds, then slowly close the legs; 3. PDL-15 Iliotibial bundle stretching exercise 1. Cross your legs, with the affected leg behind you and the affected arm stretched upward against your ear; 2. Tilt your body toward the healthy side until you feel a pulling sensation in the affected iliotibial bundle and maintain your posture; 3.