作者单位:Yildirim Beyazit Univ, Ataturk Training & Res Hosp, Dept Orthoped & Traumatol, Ankara, Turkey[1]Gen Directorate Gen Hlth Insurance, Republ Turkey Social Secur Inst, Ankara, Turkey[2]Yildirim Beyazit Univ, Yenimahalle Training & Res Hosp, Dept Orthoped & Traumatol, Ankara, Turkey[3]