McMurray test for meniscus injury

The McMurray test is used to assess both knee motion and meniscal injury. To perform the maneuver, the examiner places their thumb and index finger on the medial and lateral joint lines while the knee is passively flexed and extended several times in a smooth back and forth motion. Flexion and extension is performed with the tibia internally rotated for several repetitions (A and B), and then with the tibia externally rotated for several repetitions (C and D). While performing the maneuver, the clinician feels for a popping sensation along the joint line. The test is positive when there is pain at the joint line, with or without a "clunk," and possibly limited range of motion. A positive test suggests meniscal injury.