Hip Int 2014; 24(6):624-630 Analysis of medialisation of the femoral head in periacetabular osteotomy using three-dimensional computed tomography Tanaka Y, Moriyama S, Nakamura Y, Naito M PMID: 25096450 DOI: 10.5301/hipint.5000171 Accepted on 20/05/2014 Available online on 31/07/2014 Published in print on 05/12/2014 The above article recently appeared in Hip international. It subsequently became clear that the tables and figures of the article had been published before. It is the duty of authors to submit work which has not (in whole or in part) been published elsewhere. Should published work be partially covered again, this should be acknowledged prominently, and the original publication cited. Unfortunately, Hip International cannot proceed with publication of duplicated (or partially duplicated) work, and the article has been retracted. On this occasion the authors themselves notified the journal and we appreciate their integrity. This was the first time that the work has appeared in an international publication.