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. 2014 Nov 28;15:401. doi: 10.1186/1471-2474-15-401

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© Ning et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Shows a typical X-ray in a bilateral DDH, both before operation and at the follow up examination. A. Female patient aged 3.8 years with bilateral DDH. Plain X-ray anteroposterior (AP) view. B. Plain X-ray AP view 1 year after one-stage operation, showing good containment of the femoral head. C. AP view 3.9 years postoperatively with excellent clinical and radiographic results.