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Review Question - QID 8769

Outcome Measure Tools Minimal Clinically Important Difference (MCID) The difference in outcome measures that will have clinical relevance QID: 8769 (OBQ16.7)
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QID 8769 (Type "8769" in App Search)
A new scientific study is completed investigating the use of a new technique for lumbar decompression. The prospective cohort study enrolled 400 total patients into two groups (laminectomy versus interspinous spacer) based on 80% power and beta value of 0.2. Patients were not randomized in the study. Results showed a greater improvement in pre to post operative Oswestry Disability Index (ODI) in the interspinous spacer group (38.4) versus laminectomy group (34.1). ODI scores can range from 0 (no disability) to 100 (maximum disability). P value was 0.002. Interpretation of these results suggests which of the following?
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