Assessing the Accuracy of the Straight Leg Raise Test Using Nerve Root Block in Adults with Suspected Lumbar Radicular Pain

What this Trial Is About

Researchers are evaluating the accuracy of the straight leg raise test in adults suspected of having lumbosacral radicular pain, which often results from lumbar disc herniation and causes pain radiating from the lower back or buttock to the leg. This observational study uses diagnostic transforaminal epidural steroid injection or selective nerve root block as reference standards to measure the tests sensitivity, specificity, and overall diagnostic performance. Participants will undergo clinical evaluation including the straight leg raise test followed by diagnostic injections targeting the L4, L5, or S1 nerve roots. Only selective injections performed without sedation and with a low volume of short-acting local anesthetic are included. The study will analyze the diagnostic value of the straight leg raise test compared to these injections, helping to determine when the test alone is sufficient or when further diagnostics are necessary. During the study, participants will be assessed before and one hour after the diagnostic injection using the straight leg raise test, pain intensity scales, and the Bragard test. Additional evaluations include questionnaires, lumbar MRI analysis for disc degeneration and nerve root compression, and monitoring of any changes in symptoms. The study aims to provide detailed diagnostic insights, with participation expected to cover assessments during the diagnostic procedure and related clinical evaluations.

"Determination of Sensitivity and Specificity of Straight Leg Raise Test Via Transforaminal Nerve Root Block