A diagnostic test for traumatic knee injuries. The test is designed to trap or catch a torn part of a menisus between the femoral condyle and the top of the tibia. It is carried out with the patient's thigh flexed to 90° and the knee maximally flexed. The examiner then externally rotates the knee and, maintaining the rotation, moves the knee gradually from the fully flexed position to the fully extended position. The test is repeated using internal rotation. A palpable, audible, or painful click over the medial or lateral joint line indicates a meniscal tear. The test is useful when positive, but is unreliable when negative. It is difficult to perform on an acutely painful knee.
Subjects: Sports and Exercise Medicine.