A good exercise for a torn meniscus is the flexion extension, according to Sports Injury Clinic. In this exercise, the patient simply bends and straightens the knee as far as his pain threshold and the knee's range of motion permits. Ideally, he does three sets of 10 to 20 repetitions thrice daily.
Anther good exercise for a meniscus tear is the heel slide, notes Sports Injury Clinic. Another simple exercise to improve mobility, it requires the patient to lie on his back with his arms at his sides, his heels on the floor and legs stretched. Then, he slowly bends the knee as far as it can go by sliding the heel along the ground. He should perform the heel slide 10 to 20 times a day, with the goal to increase the knee's range of movement without pain.
The patient can also do isometric hamstring and static quad contractions, explains Sports Injury Clinic. The first requires a partner to provide resistance against the hamstring muscles. The patient should repeat this exercise 10 to 20 times. He can do static quad contractions as soon as he is able, and even when the leg is still in a cast. The patient contracts the quad muscles, holds them for 10 seconds, rests for three seconds and repeats the action between 10 and 20 times.