“…Initial injuries were mainly sports injuries or road traffic accidents. The average age 33 (range 27-43) was a little higher than in previous series (Agarwal et al, 2007;Badia et al, 2005;de Soras et al, 1997;Deshmukh et al, 2004;Duteille et al, 2003;Ellis et al, 2007;Hynes and Giddins, 2001;Johnson et al, 2004;Majumder et al, 2003;Syed et al, 2003) for the 15 retrieved patients (mean 40 years) and for all 30 patients (mean 42 years). In our opinion, the age was not a confounding factor in the overall results.…”