Comparing COMI and RMDQ-24, NCOS, ODI, JOA and SSS Questionnaires in Patients with Lumbar Spinal Stenosis

Abstract

Background: RMDQ-24, NCOS, ODI, JOA, SSS and COMI have been regularly used to measure functional outcomes in patients with lumbar spinal stenosis.  The aim of this study was to compare COMI score versus other measures and to see if there were correlations among the measures studied.

Materials and Methods: A sample of patients with lumbar spinal stenosis candidate for surgery entered into the study. Patients completed the questionnaire twice: at pre- and post-operative assessments. The correlation between the COMI and other measures were examined for both assessments.

Results: one hundred and twenty patients were eligible to enter into the study. The mean age of patients was 49.4± 9.8 (ranging from 46 to 79) years. Spearman’s correlation test showed significant correlations among the COMI and the RMDQ-24 (r =0.83), NCOS (r =0.82), ODI (r =0.79), JOA(r =0.80) and SSS (r =0.79) at pre-operative assessment. Similarly there were significant correlations between the COMI and other measures at post-operative assessment as follows: RMDQ-24 (r =0.87), NCOS (r =0.84), ODI (r =0.82), JOA (r =0.83) and SSS (r =0.84) (P< 0.001).

Conclusion: RMDQ-24, NCOS, ODI, JOA, SSS and COMI score have a strong correlation in measuring disability in a group of patients with lumbar spinal stenosis.

 Keywords: LSS, Measure, Outcomes, COMI