“…Effusion causing distension of the capsule andlor increased intracapsular pressure has been observed in several hip disorders, such as arthrosis (Timofeeva 1975, Goddard and Gosling 1988, Robertsson et al 1995, transient synovitis (Kloiber et al 1983, Wingstrand et al 1985a, septic arthritis (Wingstrand et al 1987) and juvenile chronic arthritis (Rydholm et al 1986). …”