Femoral stretch test

AKA reverse straight-leg raising: patient prone, examiner’s palm at popliteal fossa, the knee is maximally dorsiflexed. Often positive with L2, L3, or L4 nerve root compression (e.g. in upper lumbar disc herniation), or with extreme lateral lumbar disc herniation (may also be positive in diabetic femoral neuropathy or psoas hematoma); in these situations, SLR (Lasègue’s sign) is frequently negative (since L5 & S1 are not involved)