To test two questions raised by a previous study: whether high and steeply rising intra-articular (IA) pressure achieved by controlled fluid infusion would be specific to the painful stiff shoulder (PSS) and whether rupture occurs immediately after the appearance of the third phase so that it could be considered as a preruptural sign.
Department of Rehabilitation Medicine, College of Medicine, and Rheumatism Research Institute, Medical Research Center, Seoul National University, Seoul, South Korea. suncg@snu.ac.kr