Related Experiment Video
Updated: Jul 30, 2026
04:42
Treating Low Back Pain in Failed Back Surgery Patients with Multicolumn-lead Spinal Cord Stimulation
Published on: June 26, 2018
Psychologic classification of low-back pain patients: a prognostic tool
Spine
|November 1, 1986
Summary
The Pain Drawing Test and Back Pain Classification Scale (BPCS) show similar accuracy in predicting treatment outcomes for back pain patients. While agreement on psychological disturbance varied, both tools effectively identify potential treatment failures.
Area of Science:
- Psychology
- Pain Management
- Rehabilitation Medicine
Background:
- Psychological factors significantly impact chronic back pain and treatment outcomes.
- Accurate assessment of psychological disturbance is crucial for effective pain management strategies.
- The Pain Drawing Test and Back Pain Classification Scale (BPCS) are commonly used but their comparative utility requires further investigation.
Purpose of the Study:
- To compare the Pain Drawing Test and BPCS in measuring psychological disturbance in back pain patients.
- To evaluate the predictive value of both instruments for treatment outcomes over 12 months.
- To determine the clinical utility of these scales in identifying patients at risk of poor treatment response.
Main Methods:
- Cross-sectional study comparing two psychometric instruments: the Pain Drawing Test and the Back Pain Classification Scale (BPCS).
- Assessment of patient psychological disturbance and prediction of treatment outcomes including medication need, work status, self-rated improvement, and pain change.
- 12-month follow-up period to evaluate treatment outcomes.
Main Results:
- Good agreement was found between the Pain Drawing Test and BPCS for identifying patients as 'not psychologically disturbed'.
- Agreement was considerably lower for patients identified as 'psychologically disturbed'.
- Both measures demonstrated equal accuracy in predicting most clinical outcomes, with the BPCS showing a trend for 'return-to-work status' that the Pain Drawing Test did not.
- Both scales showed strong correlations in predicting clinically important indexes of improvement.
Conclusions:
- The differences in identifying psychological disturbance may stem from the scales measuring different aspects of psychological distress.
- Both the Pain Drawing Test and BPCS are valuable clinical tools for the early identification of patients likely to experience treatment failure.
- These findings support the use of both instruments in comprehensive back pain assessment and management planning.
