What is SLR Test?
Straight Leg Raise (SLR) Test: A Vital Tool in Lumbar Radiculopathy Assessment Introduction The Straight Leg Raise (SLR) Test is a cornerstone in orthopedic and neurological clinical examinations used primarily to assess lumbar nerve root irritation , particularly sciatic nerve involvement . Whether you're a physiotherapist , orthopedic specialist , or general practitioner , understanding the correct execution and interpretation of this test can significantly aid in diagnosing lumbar disc herniation , sciatica , and other lumbosacral pathologies . Purpose of the Test The main goal of the SLR test is to reproduce radicular symptoms (pain, tingling, or numbness radiating down the leg) by putting tension on the sciatic nerve and its spinal nerve roots (typically L4 , L5 , S1 ). This helps determine whether a patient's leg pain originates from nerve root compression or another cause. Anatomical Basis The sciatic nerve is the largest nerve in the body, formed by the lum...