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Multiple Femoral and Tibial Avulsion Fractures in a Skeletally Mature Patient Secondary to Knee DislocationA Case Report
Matthew L. Broadhead, BSc(Med), MBBS(Hons)1; Han K. Lim, MBBS, BMedSci1; Eugene T.H. Ek, MBBS(Hons), PhD, FRACS(Orth)1; Andrew Chia, MBBS, FRACS(Orth)1
1 Department of Orthopaedic Surgery, The Alfred Hospital, P.O. Box 315, Prahran VIC 3181, Australia. E-mail address for E.T.H. Ek: eugene_ek@me.com
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Investigation performed at the Department of Orthopaedic Surgery, The Alfred Hospital, Prahran, Victoria, Australia

Disclosure: None of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of any aspect of this work. None of the authors, or their institution(s), have had any financial relationship, in the thirty-six months prior to submission of this work, with any entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. Also, no author has had any other relationships, or has engaged in any other activities, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

Copyright © 2013 by The Journal of Bone and Joint Surgery, Inc.
JBJS Case Connector, 2013 Sep 11;3(3):e89 1-5. doi: 10.2106/JBJS.CC.L.00279
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Knee dislocation is an uncommon injury and typically results in the rupture of at least three of the four main ligaments of the knee. In contrast, multiple osseous avulsion fractures are distinctly uncommon with a knee dislocation. Avulsion fractures usually occur in skeletally immature patients with open physes. Force applied through the attached ligament causes fracture through the region of weakness. A force of similar magnitude will usually cause rupture of the ligament itself in skeletally mature patients. To the best of our knowledge, we describe the first reported case of multiple avulsion fractures in a skeletally mature patient secondary to knee dislocation. The patient was informed that data concerning the case would be submitted for publication, and he provided consent.
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