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Case Reports in Orthopedics
Volume 2016, Article ID 3548512, 5 pages
Case Report

Spontaneous Knee Ankylosis through Heterotopic Ossification after Total Knee Arthroplasty

1Department of Reconstructive and Orthopaedic Surgery, Clinical Orthopaedic Research Centre, Université Paris Descartes, Hôpital Cochin, 27 rue du Faubourg Saint Jacques, 75014 Paris, France
2Department of Orthopaedic and Sport Surgery, Pitié Salpêtrière Hospital, Pierre and Marie Curie University, 47 boulevard de l’Hôpital, 75013 Paris, France
3Centre d’Imagerie Ostéo-Articulaire, Clinique du Sport de Bordeaux-Mérignac 2, rue Négrevergne, 33700 Mérignac, France
4Département d’Imagerie Musculo-Squelettique, Centre Hospitalier Universitaire Pellegrin, Place Amélie Léon Rabat, 33000 Bordeaux, France

Received 5 November 2015; Revised 3 February 2016; Accepted 14 February 2016

Academic Editor: Charbel D. Moussallem

Copyright © 2016 Samuel Boulezaz et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This paper reports on a case of total ankylosis of the knee after a cruciate-sacrificing cemented total knee arthroplasty (TKA). An 82-year-old female patient previously underwent primary TKA for osteoarthritis twenty years ago in our institution. She had recovered uneventfully and returned to her regular activities. There was no history of postsurgical trauma; however, she progressively lost knee range of motion. Radiographs revealed severe bridging heterotopic ossification.