A review of follow-up studies of multidisciplinary pain units.

Chronic pain is a major public health problem in the United States. Estimates from the National Institutes of Health put the cost of chronic pain at 40 billion dollars a year. They estimate that as many as 15 million adults suffer from low back pain with a minimum cost of 5 billion dollars in direct medical costs and 93 million work days lost every year. In an attempt to cope with this massive problem, multidisciplinary pain units have arisen which attempt to address the complex, multi-faceted aspects of a chronic pain problem. The importance of this new treatment approach is made evident by the 1981 overview of multidisciplinary pain centers published by the National Institutes of Health. In this publication, the history and success of these units since their first development by Bonica are evidenced. The purpose of the present paper is to briefly, critically summarize one small aspect of these programs, specifically follow-up analysis of the patients after discharge.