Rotational Acetabular Osteotomy through an Ollier Lateral U Approach for Early-stage Osteoarthritis Secondary to Acetabular Dysplasia. - Sun, Wei; Shi, Zhen‐cai; Li, Zi‐rong; Yang, Yu‐run; Wang, Bai‐liang; Guo, Wan‐shou (Orthopaedic Surgery, 2013)