Background Fibromyalgia syndrome is a chronic rheumatic condition characterised by widespread musculoskeletal pain.
Objectives The aim of this study was to investigate the relationship between benign joint hypermobility syndrome (BJHS) and FMS.
Methods Thirty-four fibromyalgia patients and 30 healthy control subjects with a mean age of 32.6 ± 7.8 and 38.8 ± 11.1 years respectively, were recruited to the study. Data about demographical and clinical characteristics of the subjects including age, sex, widespread pain, number of specific tender points and associated symptoms were recorded. The joint hypermobility was evaluated depending on the Beighton score and the diagnosis of BJHS was considered according to the revised criteria for the diagnosis of BJHS (Brighton 1998).
Results There were 2 male and 32 female subjects in each group. The mean number of tender points (14.7 ± 1.9 vs 2.5 ± 3.1), associated symptoms (7.1 ± 1.7 vs 2.5 ± 1.6) and Beighton score (3.4 ± 1.3 vs 1.7 ± 1.9) were significantly higher in the FMS group. The BJHS was present in 2 (5.8%) of FMS and 1 (2.9%) of the control subjects.
Conclusion The fibromyalgia patients may be more hypermobile than the control subjects but BJHS is a different clinical entity having no relationship with FMS.
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