alexa Relative Sensitivity, Specificity and Perceived Exertion of Some Provocative Tests in the Mechanical Diagnosis of Sacro-Iliac Joint Dysfunction among Patients with Low Back Pain
ISSN: 2161-0533

Orthopedic & Muscular System: Current Research
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Case Report

Relative Sensitivity, Specificity and Perceived Exertion of Some Provocative Tests in the Mechanical Diagnosis of Sacro-Iliac Joint Dysfunction among Patients with Low Back Pain

Michael O Egwu*

Department of Medical Rehabilitation, College of Health Sciences, Obafemi Awolowo University Ile-Ife, Nigeria

*Corresponding Author:
Michael O Egwu
Department of Medical Rehabilitation
College of Health Sciences
Obafemi Awolowo University Ile-Ife, Nigeria
Tel: +2348033739499
E-mail: [email protected]

Received Date: August 31, 2013; Accepted Date: September 27, 2013; Published Date: October 7, 2013

Citation: Egwu MO (2013) Relative Sensitivity, Specificity and Perceived Exertion of Some Provocative Tests in the Mechanical Diagnosis of Sacro-Iliac Joint Dysfunction among Patients with Low Back Pain. Orthop Muscul Syst 2: 130. doi: 10.4172/2161-0533.1000130

Copyright: © 2013 Egwu MO. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Purpose: Provocative tests are known to be clinically useful in the identification of soft tissue and articular
dysfunctions, however, the proportion of patients with Sacro-Iliac Joint (SIJ) dysfunction who have positive tests
(sensitivity) and the proportion who have negative tests (specificity) for these tests are not well known. This study
examined the relative sensitivity, specificity and associated stress of Gross SIJ Compression (GSIJC) and Distraction
(GSIJD), Supine-Long Sitting (SLS) and Posterior Dimple Compression (PDC) tests among patients with Low Back
Pain (LBP).
Method: Fifty three subjects (male-24, female-29; age range 19-90 years, mean age 57.6yrs) went through the
four tests and the test that elicited pain and/or limb length discrepancy (positive test) were noted. Pain intensity was
rated using semantic differential scale before and after testing, while test induce exertion was assessed using Borge
scale after testing. GSIJC test was set as gold standard for the purpose of analysis.
Result: PDC (0.91) was more sensitive than SLS (0.67) and GSIJD (0.57, while GSIJD was more specific (0.91)
than SLS (0.84) and PDC (0.56). However, PDC was the least exerting (7.2) followed by GSIJD (7.5), SLS (13.0) and
GSIJC (13.9). Conclusion: PDC test is the least exerting and more able to identify the proportion of LBP patients having
SIJ dysfunction while GSIJD is more able to identify the

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