Perform a straight leg raise test on the asymptomatic leg, adduct the asymptomatic leg accross midline
Positive test: reproduction of symptoms in contralateral leg
Sensitivity: 43%, Specificity: 97%
LR+=14.3, LR-=0.59
References
Baxter S, ed., McScheffrey G, ed. Toronto Notes: Comprehensive Medical Reference & Review for MCCQE 1 & USMLE 2. 26th ed. Toronto: Toronto Notes for Medical Students Inc; 2010.
Essential Evidence Plus. http://www.essentialevidenceplus.com. 2011. Accessed February 2011.
Hurley K. OSCE and Clinical Skills Handbook. Halifax: Elsevier Canada; 2005.