[Pressure point studies in generalized tendomyopathy (fibromyalgia) (comparison of various methods)]

There are different methods used for examination of tender-point pressure tenderness, which is one of the two most important criteria for diagnosis of generalised tendomypathy (fibromyalgia). When 11 of 18 tender points must be painful under the pressure of 4 kg for fulfilling the criteria of American College of Rheumatology (ACR), we require 12 of 24 points to be tender when pressed with a force less than 2 kg using dolorimeter. We have found that our method have a significantly higher specificity with about the same sensitivity, when compared with by ACR proposed method. Specificity and sensitivity depended on method used for pressure application and not on points examined. In view of our findings, we propose for scientific purposes dolorimetric measurement of pressure tenderness as being more reliable although more time-consuming method.