Myofascial Pain Syndrome among Chronic Back Pain Sufferers: Prevalence, Risk Factors and Outcome. A Retrospective Review from North-East of Malaysia.

摘要

Objectives: To determine the prevalence, risk factors and outcome of patients with myofascial pain syndrome among chronic back pain patients who attended a Multi-disciplinary Pain Clinic at Hospital University Science Of Malaysia.Methods: This study involved retrospective records review of one hundred and twenty six patients attending pain clinic for chronic back pain management between 1~(st) January to 31~(st) December 2008.Results: The prevalence of myofascial pain syndrome (MPS) among chronic back pain patients was 63.5% (n=80). Secondary MPS was more common with 81.3% of total MPS. Sixty-five percent (n=52) of total MPS was found to be the main pain generator. There was an association between female sex and risk of developing MPS (X~2= 5.38, p=0.02, O.R.= 2.4). Occupation, body mass index and duration of back pain were not significantly associated with occurrence of MPS. Repeated measures analysis showed significant changes in Visual Analogue Scale (VAS) and Oswestry Disability Index (ODI) with our standard management during three consecutive visits at six months interval with measured p<0.0001 for VAS and ODI.Conclusion: The prevalence of MPS among chronic back pain sufferers was significantly high with female gender as a significant risk factor. The outcome of patient with MPS was favourable once a proper diagnosis was made and expert management provided.