“…Recent prosthetic designs have a oppier hinge prosthesis and some of the non-retentive models are more stable. Despite the development and choice of prosthetic designs, good surgical technique is very important (Kudo et al 1980, Kudo and Iwano 1990, Morrey and Adams 1992, Ewald et al 1993, Risung 1997, Gschwend et al 1999, Shah et al 2000. At the Rheumatism Foundation Hospital, the rst arthroplasty with a Souter prosthesis was performed in 1982 (Pöll and Rozing 1991, Sjöden et al 1988, Trail et al 1999, Ikävalko et al 2002.…”