%0 Journal Article %A T.D. Lerch %A S.D. Steppacher %A K. Ziebarth %A M. Tannast %A K.A. Siebenrock %T DEROTATIONAL FEMORAL OSTEOTOMIES FOR EXTRA-ARTICULAR ISCHIOFEMORAL HIP IMPINGEMENT %D 2018 %J Orthopaedic Proceedings %P 84-84 %V 100-B %N SUPP_1 %R 10.1302/1358-992X.2018.1.084 %U https://doi.org/10.1302/1358-992X.2018.1.084 %K Hip