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Quantifying the pain experience in hip and knee osteoarthritis
Rajiv Gandhi1, Dmitry Tsvetkov, Herman Dhottar
1Division of Orthopedic Surgery, University of Toronto, Toronto, Ontario, Canada. Rajiv.gandhi@uhn.on.ca
Pain Research & Management
|September 3, 2010
Summary
Adding the Short-Form McGill Pain Questionnaire (MPQ-SF) provides a more complete assessment of osteoarthritis pain than the WOMAC and SF-36 scales alone. Mental health and pain catastrophizing significantly impact pain scores.
Area of Science:
- Orthopedics
- Pain Management
- Psychosomatic Medicine
Background:
- Osteoarthritis pain assessment is crucial for treatment planning.
- Existing scales like WOMAC and SF-36 may not fully capture the pain experience.
Purpose of the Study:
- To evaluate if the Short-Form McGill Pain Questionnaire (MPQ-SF) enhances pain characterization in hip and knee osteoarthritis.
- To investigate the influence of mental health and pain catastrophizing on pain scale scores.
Main Methods:
- 200 patients undergoing hip/knee arthroplasty completed WOMAC, MPQ-SF, SF-36, Pain Catastrophizing Scale, and Hospital Anxiety and Depression Scale.
- Correlational and linear regression analyses were performed.
Main Results:
- Strong correlation between WOMAC and SF-36 pain scales (r=-0.70).
- Moderate correlations of WOMAC and SF-36 with MPQ-SF (r=0.36, r=-0.36).
- Pain catastrophizing significantly predicted higher scores on all three pain measures (P<0.05).
Conclusions:
- The MPQ-SF adds valuable information for a comprehensive quantification of osteoarthritis pain.
- Mental health and catastrophizing are significant factors influencing pain perception in osteoarthritis patients.
