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Fracture of an Os Hamulus Proprium

A Case Report

Graham, Jack G., BS1; Matzon, Jonas L., MD1; Czachor, Boleslaw, MD2; Lucenti, Ludovico, MD3; Beredjiklian, Pedro K., MD1

doi: 10.2106/JBJS.CC.18.00231
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Disclosures

Case: We report the case of a 39-year-old man who sustained an acute fracture of an os hamulus proprium, which was treated with open surgical excision after nonoperative treatment was unsuccessful. At the most recent follow-up, at 6 years after surgery, the patient was asymptomatic and maintained full function of the hand and the wrist.

Conclusion: An os hamulus proprium is often confused with a fracture of the hook of the hamate, and little information exists in the literature regarding these accessory ossicles. To our knowledge, an os hamulus proprium fracture has not previously been described in the literature.

1Department of Orthopaedic Surgery, Rothman Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania

2Orthopaedics Department, Colorado Permanente Medical Group, Lone Tree, Colorado

3Department of Orthopaedics and Traumatologic Surgery, AOU Policlinico-Vittorio Emanuele, University of Catania, Catania, Italy

E-mail address for J.G. Graham: Jack.Graham@jefferson.edu

E-mail address for J.L. Matzon: Jonas.Matzon@rothmaninstitute.com

E-mail address for B. Czachor: bolek84@gmail.com

E-mail address for L. Lucenti: Ludovico.Lucenti@gmail.com

E-mail address for P.K. Beredjiklian: Pedro.Beredjiklian@rothmaninstitute.com

Investigation performed at the Department of Orthopaedic Surgery, Rothman Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania

Disclosure: The authors indicated that no external funding was received for any aspect of this work. The Disclosure of Potential Conflicts of Interest forms are provided with the online version of the article (http://links.lww.com/JBJSCC/A775).

Copyright © 2019 by The Journal of Bone and Joint Surgery, Incorporated
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