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Initial Validation of a Sacroiliac Joint-Specific Disability Questionnaire
Orthopedics
|May 1, 2023
Summary
A new questionnaire, the Denver SI Joint Questionnaire (DSIJQ), effectively measures sacroiliac joint pain disability. It demonstrates strong reliability and responsiveness, outperforming the Oswestry Disability Index (ODI) for SI joint-specific conditions.
Area of Science:
- Orthopedics
- Musculoskeletal Disorders
- Pain Management
Background:
- Low back pain is complex, with sacroiliac (SI) joint pain being a significant contributor.
- Existing disability indices, like the Oswestry Disability Index (ODI), may not fully capture SI joint-specific functional limitations.
- A validated tool is needed to accurately assess disability related to SI joint dysfunction.
Purpose of the Study:
- To develop and validate the Denver SI Joint Questionnaire (DSIJQ) for assessing functional disability in patients with SI joint pain.
- To evaluate the psychometric properties of the DSIJQ, including reliability, validity, and responsiveness.
- To compare the DSIJQ's responsiveness to that of the ODI in this patient population.
Main Methods:
- The Denver SI Joint Questionnaire (DSIJQ) was developed and administered to 24 patients with SI joint pain.
- Psychometric validation included assessments of test-retest reliability, internal consistency, content validity, convergent and divergent criterion validity, and responsiveness.
- The DSIJQ's performance was compared against the Oswestry Disability Index (ODI) and physical function tests (Timed Up-and-Go, 5-Minute Walk).
Main Results:
- The DSIJQ demonstrated excellent test-retest reliability (ICC=0.87) and internal consistency (Cronbach's alpha=0.842).
- It showed good convergent validity (r=0.89) and significant correlations with physical function tests (Timed Up-and-Go, 5-Minute Walk).
- The DSIJQ exhibited superior responsiveness compared to the ODI, indicating greater sensitivity to changes in SI joint disability.
Conclusions:
- The Denver SI Joint Questionnaire (DSIJQ) is a psychometrically sound instrument for evaluating disability in patients with SI joint pain.
- The DSIJQ is more sensitive to treatment-induced changes in disability than the ODI for SI joint-specific conditions.
- This validated questionnaire is appropriate for clinical use and research focused on targeted SI joint interventions.
