Which test is used to assess lateral knee pain related to the LCL?

Which test is used to assess lateral knee pain related to the LCL?

• A. Lachman test
• B. Varus stress test
• C. Valgus stress test
• D. McMurray test

Answer: (B)

Testing the lateral knee collateral structures is done with a varus stress test. By applying a varus (inward) force to the knee while stabilizing the thigh, you look for pain on the lateral side and any gapping or laxity. A positive result—lateral pain or increased lateral opening—suggests injury to the lateral collateral ligament and possibly the posterolateral corner. Performing the test at different knee angles helps gauge how much the LCL alone is involved versus other posterolateral structures. The other tests target different structures: the Lachman test assesses the ACL; the valgus stress test evaluates the medial collateral ligament; and the McMurray test checks for meniscal tears. So the varus stress test is the one that specifically assesses the LCL-related lateral knee pain.

Testing the lateral knee collateral structures is done with a varus stress test. By applying a varus (inward) force to the knee while stabilizing the thigh, you look for pain on the lateral side and any gapping or laxity. A positive result—lateral pain or increased lateral opening—suggests injury to the lateral collateral ligament and possibly the posterolateral corner. Performing the test at different knee angles helps gauge how much the LCL alone is involved versus other posterolateral structures.

The other tests target different structures: the Lachman test assesses the ACL; the valgus stress test evaluates the medial collateral ligament; and the McMurray test checks for meniscal tears. So the varus stress test is the one that specifically assesses the LCL-related lateral knee pain.