PMID: 11312387Apr 20, 2001Paper

Value of the bell test and the hyperextension test for diagnosis in sciatica associated with disc herniation: comparison with Lasègue's sign and the crossed Lasègue's sign

Rheumatology
S PoiraudeauM Revel

Abstract

To evaluate the reliability, sensitivity, specificity and positive (PPV) and negative (NPV) predictive values for the diagnosis of sciatica associated with disc herniation of the bell test (BT) and the hyperextension test (HT). According to magnetic resonance imaging, computed tomography scanning or myelography findings, patients were classified as having sciatica associated with disc herniation (group A) or sciatica without disc herniation or sciatica of other mechanical origin (group B). Four clinical manoeuvres [bell test (BT), hyperextension test (HT), Lasègue's sign (LS) and the crossed Lasègue's sign (CL)] were tested by three investigators. Intra- and interobserver reliabilities were calculated using the kappa correlation coefficient or the intraclass correlation coefficient (ICC). The sensitivity, specificity, PPV and NPV of the four manoeuvres were calculated. Stepwise logistic regression analysis was performed to determine the best set of variables predicting sciatica caused by disc herniation. Seventy-eight patients (43 in group A, 35 in group B; 33 males) with a mean age of 50+/-16 yr were included. Interobserver reliabilities ranged from 0.58 to 0.64 for the BT, 0.35 to 0.50 for the HT, 0.27 to 0.47 for LS and 0.43...Continue Reading

Citations

Jun 14, 2005·Best Practice & Research. Clinical Rheumatology·Jon D Lurie
Nov 2, 2006·Chiropractic & Osteopathy·Rob Simpson, Hugh Gemmell
Oct 23, 2012·Surgical Neurology International·Ignatius Ngene EseneAdel El-Hakim
Dec 19, 2008·Radiology·Jeffrey G Jarvik, Richard A Deyo
May 4, 2002·Best Practice & Research. Clinical Rheumatology·Jean Dudler, Federico Balagué
Feb 19, 2010·The Cochrane Database of Systematic Reviews·Daniëlle Awm van der WindtBert Aertgeerts
Oct 1, 2020·International Journal of Environmental Research and Public Health·Francisco Javier González Espinosa de Los MonterosPetronila Oliva Ruiz
May 14, 2017·BMC Musculoskeletal Disorders·Tom PetersenCarsten Juhl

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