Knee, Meniscus, and Cruciate Ligaments

Meniscus Injuries

McMurray's test
- Performed in supine position and the knee is moved from full flexion to extension.
- Medial meniscus is tested by externally rotating the lower leg and valgus (abducting) the knee joint.
- Lateral meniscus is tested by internally rotating and varus (adducting) the knee joint.
Meniscus injury, McMurray’s test
Medial meniscus

Test characteristics: Sens 67, Spec 69, LR+2.2, LR-0.48
Lateral meniscus

Test characteristics: Sens 53, Spec 88, LR+4.4, LR-0.53
Apley's test
- Performed in prone position, 90 degrees flexion in the knee joint
- Axial compression in the lower leg and simultaneous rotation inward and outward, pain in the direction the leg is rotated indicates a meniscus injury medially or laterally
- Same starting position but here the patient’s thigh is stabilized with the examiner’s knee and traction and rotation are applied, pain indicates injury in the medial or lateral collateral ligament
Meniscus injury, Apley’s test
Compression and rotation

Traction and rotation
