Straight Leg Raise Test: Difference between revisions
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== Definition | == Definition == | ||
Lasègue sign, also known as [[Straight Leg Raise Test|Straight Leg Raise test]] (SLR) [<ref name="Déville">Devillé Walter L. J. M. et al. The test of Lasègue : Systematic review of the Accuracy in Diagnosing Herniated Discs. Spine Nov 2000; 25 (9) : 1140-1147 (A1)</ref>] is positive when there is a sensation of pain by applying pressure to the piriformis muscle and his tendon, particularly when the hip is flexed at an angle of 90 degrees and the knee is extended. The pain or tenderness is often localized in the vicinity of the greater sciatic notch. [<ref name="Shah">Shah S,Wang TW. Piriformis syndrome. eMedicine specialities :Sports medicine : hip 2009fckLRhttp://emedicine.medscape.com/article/87545-overview</ref>,<ref name="Kirschner">Kirschner JS, Foye PM, Cole JL. Piriformis syndrome, diagnosis and treatment. Muscle Nerve Jul 2009 ; 40(1) : 10-18</ref>,<ref name="Lori">Lori A, Boyajian- O’ Neill et al. Diagnosis and Management of Piriformis syndrome : an osteopathic approach. The journal of the American and osteopathic association Nov 2008; 108(11): 657-664.</ref>] | Lasègue sign, also known as [[Straight Leg Raise Test|Straight Leg Raise test]] (SLR) [<ref name="Déville">Devillé Walter L. J. M. et al. The test of Lasègue : Systematic review of the Accuracy in Diagnosing Herniated Discs. Spine Nov 2000; 25 (9) : 1140-1147 (A1)</ref>] is positive when there is a sensation of pain by applying pressure to the piriformis muscle and his tendon, particularly when the hip is flexed at an angle of 90 degrees and the knee is extended. The pain or tenderness is often localized in the vicinity of the greater sciatic notch. [<ref name="Shah">Shah S,Wang TW. Piriformis syndrome. eMedicine specialities :Sports medicine : hip 2009fckLRhttp://emedicine.medscape.com/article/87545-overview</ref>,<ref name="Kirschner">Kirschner JS, Foye PM, Cole JL. Piriformis syndrome, diagnosis and treatment. Muscle Nerve Jul 2009 ; 40(1) : 10-18</ref>,<ref name="Lori">Lori A, Boyajian- O’ Neill et al. Diagnosis and Management of Piriformis syndrome : an osteopathic approach. The journal of the American and osteopathic association Nov 2008; 108(11): 657-664.</ref>] | ||
<br> | == Test position == | ||
Patient supine, examiner standing at tested side with the distal hand around the subject's heel and proximal hand on subject's distal thigh(anterior) maintain knee extension | |||
== Action == | |||
Examiner slowly raise the leg until pain/tightness noted or full ROM is obtained. slowly lower the leg until the pain or tightness resolves, at which point dorsiflex the ankle and have subject flex the neck | |||
== positive findings == | |||
Leg and/or low back occurring with dorsiflexion and or neck flexion is involvement and/or sciatic nerve irritation. | |||
Lack of pain reproduction with dorsiflexion and/or neck flexion is indicative of hamstring tightness or sacroiliac pathology<br> | |||
== References == | == References == | ||
<references /> | <references /> | ||
Revision as of 21:12, 24 February 2019
Definition[edit | edit source]
Lasègue sign, also known as Straight Leg Raise test (SLR) [[1]] is positive when there is a sensation of pain by applying pressure to the piriformis muscle and his tendon, particularly when the hip is flexed at an angle of 90 degrees and the knee is extended. The pain or tenderness is often localized in the vicinity of the greater sciatic notch. [[2],[3],[4]]
Test position[edit | edit source]
Patient supine, examiner standing at tested side with the distal hand around the subject's heel and proximal hand on subject's distal thigh(anterior) maintain knee extension
Action[edit | edit source]
Examiner slowly raise the leg until pain/tightness noted or full ROM is obtained. slowly lower the leg until the pain or tightness resolves, at which point dorsiflex the ankle and have subject flex the neck
positive findings[edit | edit source]
Leg and/or low back occurring with dorsiflexion and or neck flexion is involvement and/or sciatic nerve irritation.
Lack of pain reproduction with dorsiflexion and/or neck flexion is indicative of hamstring tightness or sacroiliac pathology
References[edit | edit source]
- ↑ Devillé Walter L. J. M. et al. The test of Lasègue : Systematic review of the Accuracy in Diagnosing Herniated Discs. Spine Nov 2000; 25 (9) : 1140-1147 (A1)
- ↑ Shah S,Wang TW. Piriformis syndrome. eMedicine specialities :Sports medicine : hip 2009fckLRhttp://emedicine.medscape.com/article/87545-overview
- ↑ Kirschner JS, Foye PM, Cole JL. Piriformis syndrome, diagnosis and treatment. Muscle Nerve Jul 2009 ; 40(1) : 10-18
- ↑ Lori A, Boyajian- O’ Neill et al. Diagnosis and Management of Piriformis syndrome : an osteopathic approach. The journal of the American and osteopathic association Nov 2008; 108(11): 657-664.
