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Scientific Articles   |    
The Hook Plate Technique for Fixation of Phalangeal Avulsion Fractures
Gavin Chun-Wui Kang, MBBS, MRCSEd, MMed(Surg), MEng1; Andrew Yam, MBBS, MRCSEd, MMed(Surg)1; Ee San Phoon, MBBS, MRCSEd, MMed(Ortho)2; Jonathan Yi-Liang Lee, MBBCh, MRCSEd, MMed(Surg)1; Lam-Chuan Teoh, MBBS, MMed(Surg), FRCS(Glas)1
1 Department of Hand Surgery, Singapore General Hospital, Outram Road, Singapore 169608. E-mail address for G.C. Kang: gavinkangcw@yahoo.com
2 Department of Hand and Reconstructive Microsurgery, National University Hospital, 5 Lower Kent Ridge Road, Singapore 119074
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Investigation performed at Singapore General Hospital, Singapore



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 © 2012 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2012 Jun 06;94(11):e72 1-6. doi: 10.2106/JBJS.K.00601
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Abstract

Background: 

Avulsion fractures of the phalanges involve small osseous fragments that are usually attached to structures that are necessary for stability or movement of the joint. Satisfactory healing of the fracture to preserve joint function may require open reduction and internal fixation, which can be difficult because of the small size of the fragments.

Methods: 

We used a hook plate fashioned from a 1.3-mm Synthes titanium plate in thirteen patients with a phalangeal avulsion fracture. Four patients had an avulsion fracture of the volar plate with dorsal proximal interphalangeal joint dislocation, four had a dorsal avulsion fracture of the extensor central slip from the middle phalanx, three had a flexor digitorum profundus avulsion fracture from the distal phalanx, and two had an avulsion fracture of the phalangeal insertion of the collateral ligament.

Results: 

Union without complications was achieved in all cases. After an average duration of follow-up of seventeen months, all patients had a good to excellent result and the average total interphalangeal motion was 149°.

Conclusions: 

This indirect fixation technique produces stable fixation allowing early active finger motion.

Level of Evidence: 

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.

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    Accreditation Statement
    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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