A discoid meniscus condition is identified after noticing a popping or snapping sound as you move your knee. It is most often caused by an abnormal shape in the cartilage that acts as a shock absorber in your knee. Treatment often means surgery, but exercises are also prescribed. Consult with your doctor if you notice any popping or snapping in your knee and before you begin any of these exercises.
Leg Extensions
This exercise is performed from a seated position and involves tightening your quadriceps to straighten your injured knee and lift your foot off the floor. Once you have straightened the leg as far as possible, tighten the muscles on the front of your thigh and hold this contraction for about 10 seconds, according to the knee exercise page at the website Bigkneepain.com. Return to the starting position and relax for a few seconds and then repeat. The website recommends that you work up to three sets of 10 repetitions, or as prescribed by your doctor.
Straight Leg Raises
This exercise is designed to help strengthen the muscles of your quadriceps, and is performed by lying down with a towel rolled up under your knee. Straighten your leg as far as possible and lift your leg off the towel. Hold this position for several seconds, then use a slow and controlled motion to return to the starting position. Repeat for the prescribed number of repetitions and perform this exercise as directed by your physician or therapist. A variation of this exercise involves bending your knee as you return to the starting position.
Quarter Squats
The quarter squat is considerably more advanced, and should only be performed if directed by your doctor. Hold on to the back of a chair or other support while standing with your feet slightly apart to form a sturdy support. Bend both knees slightly and lower your torso toward the floor while still holding on to the chair for support. Lower your body about a quarter of the way to the floor, then use the muscles on the front of your thighs to straighten your leg and return to the starting position.
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