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Differences among outcome measures in occupational low back pain.
Sue A Ferguson1, William S Marras, Deborah L Burr
1Biodynamics Laboratory, Institute for Ergonomics, The Ohio State University, Columbus, Ohio 43210, USA. Ferguson.4@osu.edu
Journal of Occupational Rehabilitation
|August 27, 2005
Summary
Low back pain recovery varies significantly across different measures. Return to work shows high recovery, while functional performance and pain symptoms indicate persistent issues, potentially explaining high recurrence rates.
Area of Science:
- Orthopedics
- Rehabilitation Medicine
- Occupational Health
Background:
- Low back pain recurrence rates are high, affecting up to 70% of patients.
- Current understanding of low back pain recovery is limited.
- Effective recovery assessment requires evaluating multiple outcome measures.
Purpose of the Study:
- To compare diverse outcome measures for assessing low back pain recovery.
- To investigate the discrepancy in recovery rates across different criteria.
- To identify factors contributing to the high recurrence of low back pain.
Main Methods:
- A cross-sectional study involving 208 workers with low back pain.
- Assessment of recovery based on return to work, daily living impairment, pain symptoms, and functional performance probability.
- Evaluation of specific functional performance measures: range of motion, velocity, and acceleration.
Main Results:
- Return to work recovery was 99%, contrasting sharply with 25% for daily living impairment, 17% for symptoms, and 12.5% for functional performance probability.
- Individual functional measures showed varied recovery rates: range of motion (59%), velocity (13%), and acceleration (10%).
- These diverse recovery rates suggest distinct parameters are being measured by each criterion.
Conclusions:
- Current low back pain recovery metrics yield disparate results, indicating a need for nuanced assessment.
- Residual functional deficits may signify reduced physical demand tolerance, a potential driver of recurrent low back pain.
- Further research is needed to refine recovery assessment and address the high rates of low back pain recurrence.