Neurodynamic tests check the mechanical movement of the neurological tissues as well as their sensitivity to mechanical stress or compression. The active straight leg raise test (ASLR) is a loading test which is used to assess pain provocation and the ability to load the pelvis through the limb.It is performed in lying and the patient is instructed to lift the leg 20cm off the bed (Mens, et al., 2001). Back pain and fever are not uncommon complaints in either the outpatient or inpatient setting. As stated, the Straight Leg Raise Test is done to pinpoint the cause of low back pain for a patient as to whether or not it is caused by a disc herniation.This test stretches the sciatic nerve which courses down the back of the leg. Textbook of Orthopaedic Medicine. • Differentiate the diagnostic accuracy of the straight-leg raise (SLR) test for sciatic nerve entrapment versus for radiculopathy. Chou R, Qaseem A, Snow V, et al. Preoperatively, the SLR test was positive in 86% of patients.  A negative test suggests a likely different cause for back pain. 4th ed. van der Windt DA et al. 11th ed.  In 1864 Lasègue described the signs of developing low back pain while straightening the knee when the leg has already been lifted. Ann Intern Med. , Straight Leg test sometimes used to help diagnose a lumbar herniated disc, "The test of Lasègue: systematic review of the accuracy in diagnosing herniated disks", "Whonamedit - dictionary of medical eponyms", https://en.wikipedia.org/w/index.php?title=Straight_leg_raise&oldid=991871239, Articles with Croatian-language sources (hr), Articles with unsourced statements from June 2019, Creative Commons Attribution-ShareAlike License, This page was last edited on 2 December 2020, at 06:35. Numbness and/or paraesthesia in the involved lower leg. Starter Content >> Body Regions >> Lumbar Spine & Hips >> Straight ... You are unauthorized to view this page. 8th ed. Diagnosis and treatment of acute low back pain. 0.6. Differential Diagnosis of Lower Extremity Neurological Lesions. A variation is to lift the leg while the patient is sitting. Physical therapist’s diagnosis: Post spinal cord compression paraparesis. The differential diagnosis of hip pain is broad, presenting a diagnostic challenge. For this test, the patient lies down flat on the back and the doctor gently raises the affected leg until pain is felt. Dorman TA, Ravin TH. Neural tissue dynamics: Straight leg raise was measured at 90º bilaterally. •Straight leg raise test –SN 97%, SP 57%, QUADAS 10 (VroomenP, de Krom M, WilminkJ, Kester A, Knottnerus J. Baltimore, MD: Williams & Wilkins; 1991. 73 to 98. The test is the same as the straight leg test, the difference being that it is performed on the leg not affected by pain; Results; Positive: while performing the straight leg test on the unaffected leg the symptoms/pain are reproduced on the opposite (affected leg) Negative: no symptoms/pain are felt on the opposite leg; Note: the test has a sensitivity of 28%-29% and a specificity of 88%-90% for nerve root … tumor below L4), Tight hamstrings resulting from short leg/sacroiliac displacements, Painless straight-leg raising does not exclude a disc lesion, The discriminative power of the straight leg raise test seemed to decrease as age increased; thus, positive and negative results may be less conclusive in older patients. London: Ballière-Tindall; 1982. 0.2. Philadelphia, PA: Lippincott Williams & Wilkins. Bueno-Gracia E(1), Pérez-Bellmunt A(2), Estébanez-de-Miguel E(3), López-de-Celis C(2), Shacklock M(4), Caudevilla-Polo S(3), González-Rueda V(2). If raising the opposite leg causes pain (cross or contralateral straight leg raising): Lasègue's sign was named after Charles Lasègue (1816-1883). to exhibit a positive straight leg raise).26 For example, in a recent study of 2154 patients, clinical out-comes for different presentations of an apparently positive find-ing on straight leg raising were used to help define true positive test results (increased leg domi-nant pain with straight leg rais-ing) from false positive … With the patient lying down on their back on an examination table or exam floor, the examiner lifts the patient's leg while the knee is straight. A demonstration of physical therapy diagnosis using the movement Straight Leg Raise. Reflex examination. Cyriax J. A positive straight leg raise test usually indicates S1 or L5 root irritation. These findings show differential … Capra F et al. 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