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. 2014 Dec 23;15:453. doi: 10.1186/1471-2474-15-453

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© Xu et al.; licensee BioMed Central. 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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A 17-year-old female patient with osteosarcoma in left distal femur was treated with prosthesis replacement. a 8 years after operation, bone lose and prosthesis loosening could be found on X-ray. Physical examination demonstrated 6 cm limb length discrepancy with 26 in MSTS score and 44 in QOL. b After prosthesis revision, the left lower limb alignment restored and 3 cm limb length discrepancy remained.