“…However, some recently published studies have suggested a reversal of this trend (Rogmark et al 1999, Finsen et al 2004, Nymark et al 2006, Chevalley et al 2007. There are several operative treatment methods available, and there is no consensus on which methods should be preferred (Jalovaara et al 1992, Berglund-Roden et al 1994, Cserhati et al 2002, Bhandari et al 2005, Figwed et al 2006, Gjertsen et al 2006, Frihagen et al 2007.…”