“…The introduction of the cold knife by Cervantes (Keitzer et af., 1961) and its adoption by Sachse for use in the urethra have simplified stricture treatment to such an extent that further significant changes are hard to imagine. Internal urethrotomy has indeed been advocated by many authors, with cure rates of up to 85% at the initial treatment being reported (Matouschek and Michaelis, 1975 ;Sachse, 1978;Gaches et al, 1979;Renders et al, 1979;Walther et al, 1980;Chilton et af., 1983;Smith et af., 1983;Stone et af., 1983).…”