Overview
This lecture covers the McMurray Test, a clinical assessment for meniscal damage in the knee, including its procedure, accuracy, and interpretation.
McMurray Test Procedure
- Position the patient supine with the tested knee fully flexed.
- To assess the lateral meniscus, rotate the tibia medially and extend the knee, repeating at various angles of flexion.
- To assess the medial meniscus, fully flex the knee and laterally rotate the tibia.
- The anterior half of the meniscus is less effectively tested due to lower pressure applied during the maneuver.
Diagnostic Accuracy & Interpretation
- The McMurray Test has a diagnostic accuracy of about 63% (Blyth et al., 2015).
- A positive test is indicated by clicking, locking, or pain in the knee during the maneuver.
Additional Related Tests
- The Apley’s Test and Thessaly Test are alternative assessments for meniscal damage.
Key Terms & Definitions
- McMurray Test — A physical examination procedure to detect meniscal tears in the knee.
- Meniscus — Crescent-shaped cartilage in the knee joint.
- Medial Rotation — Inward twisting of the tibia.
- Lateral Rotation — Outward twisting of the tibia.
Action Items / Next Steps
- Watch videos on the Apley’s Test and the Thessaly Test for further assessment techniques.