Past Issue - April 2004 - Vol 7 Issue 2 Index | Previous | Next | 
2004;7;203-209. The Value of Interdisciplinary Pain Management in Complex Regional Pain Syndrome Type I: A Prospective Outcome Study
An Original Contribution
Gurwant Singh, MD, Seth N. Willen, BS, Mark V. Boswell, MD, PhD, Jeffrey W. Janata, PhD, and Thomas C. Chelimsky, MD

Background:  Complex regional pain syndrome (CRPS) type I is a symptom complex of severe, chronic limb pain, often associated with allodynia, vasomotor, and sudomotor changes.  Optimal management of this condition is not well understood.  The role of a traditional, comprehensive pain management program with long-term follow-up has not been evaluated.

Objective: To define the benefit of the interdisciplinary approach in patients with CRPS type I.

Design: Prospective, case series, outcomes evaluation. 

Methods: Patients with a diagnosis of CRPS type I entering the University Pain Centerís intensive, outpatient pain management program were enrolled in an objective assessment study through the duration of the program, with a follow-up of 2 years. This program involved 4 weeks of interdisciplinary management comprised of 20 sessions of physical therapy, 20 sessions of occupational therapy, 12 sessions of water therapy, 20 sessions of group psychotherapy, stellate ganglion blocks, and drug therapy.

Outcome Measures: Specific objective measurements of upper extremity function, sensation and strength over time, and functional status 2 years after program completion.

Results: Upper extremity weight tolerance increased dramatically by 29-pounds (p<0.05). Function improved, with a 35 inch-pound gain in BTE  (Baltimore Therapeutic Equipment) extension (p<0.005) and a 50 inch-pound increase in flexion (p<0.02).  Jebsen-Taylor multifunctional testing (fine and gross motor skills) normalized from 72 to 48 seconds (p<0.04). Stable anxiety levels despite increased patient effort implied improved pain tolerance. At the 2-year follow up, 75% of the patients were employed.

Conclusion: Patients with CRPS type I may benefit from a 4-week outpatient pain management program emphasizing rehabilitation.

Keywords: Complex regional pain syndrome, CRPS, reflex sympathetic dystrophy, RSD, interdisciplinary pain management, pain rehabilitation


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Pain Physcian
Gurwant Singh
Seth N. Willen
Mark V. Boswell
Jeffrey W. Janata
Thomas C. Chelimsky

Complex regional pain syndrome
Reflex sympathetic dystrophy
Interdisciplinary pain management
Pain rehabilitation