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CC BY 4.0 · Surg J (N Y) 2021; 07(01): e18-e21
DOI: 10.1055/s-0040-1722181
Case Report

A Bony Mallet Thumb with Interposition of the Nail Plate

Ahmadreza Afshar 
1   Department of Orthopedics, Imam Khomeini University Hospital, Urmia University of Medical Sciences, Urmia, Iran
,
Ali Tabrizi 
1   Department of Orthopedics, Imam Khomeini University Hospital, Urmia University of Medical Sciences, Urmia, Iran
,
Hassan Taleb
1   Department of Orthopedics, Imam Khomeini University Hospital, Urmia University of Medical Sciences, Urmia, Iran
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Abstract

Thumb extensor injuries and bony avulsion in the distal phalanx of the thumb are rare compared with other fingers. The most reported complications are infection, nail deformity, joint incongruity, implant failure, recurrent flexion deformity, and residual pain. This report presents a case of 30-year-old man suffering from an injury in the left thumb distal phalanx with a displaced comminuted intra-articular fracture of the distal phalanx of the left thumb. The nail plate was interposed between the dorsal and palmar fragments. The interposition of the nail plate in the bony mallet thumb has not been described before. Surgical treatment and fixation with a 2-mm miniscrew resulted in successful treatment. Clinical suspicion of this complication is of great importance and can affect treatment outcomes.

Keywords

mallet finger - mallet thumb - bony mallet - complications

Ethical Issues

The study was approved by the Ethics Committee of Urmia University of Medical Sciences.




Publication History

Received: 13 October 2019

Accepted: 09 September 2020

Article published online:
01 February 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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