Comparative Presence of Piriformis Syndrome in Patients With Lumbar Disc Bulging and Protrusion

The Straight Leg Raise test or Lasegue test, is also crucial in detecting disc herniation and neural compression. Lasègue's sign is said to be positive if the angle to which the leg can be raised (upon straight leg raising) before eliciting pain is \<45°.The presence of Piriformis syndrome was investigated in these patients with Freiberg and FAIR tests. Freiberg's test elicits pain by passively internal rotation of the extended hip, when the patient is in supine. The purpose of this test is on the one hand stretching of the irritated Piriformis Muscle (PM), on the other hand provoking sciatic nerve compression. The FAIR test is a sensitive and specific test for detection if irritation of the sciatic nerve by the piriformis. FAIR stands for flexion, adduction and internal rotation. Also known as piriformis test.