Supplemental Method for Reduction of Irreducible Mallet Finger Fractures by the 2-Extension Block Technique: The Dorsal Counterforce Technique
- Authors
- Lee, Seung Hoo; Lee, Jung Eun; Lee, Ki Ho; Pyo, Sung Hee; Kim, Min Bom; Lee, Young Ho
- Issue Date
- Aug-2019
- Publisher
- W B SAUNDERS CO-ELSEVIER INC
- Keywords
- Counterforce; mallet finger; mallet fracture; 2 extension block
- Citation
- JOURNAL OF HAND SURGERY-AMERICAN VOLUME, v.44, no.8
- Journal Title
- JOURNAL OF HAND SURGERY-AMERICAN VOLUME
- Volume
- 44
- Number
- 8
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/1176
- DOI
- 10.1016/j.jhsa.2018.09.016
- ISSN
- 0363-5023
- Abstract
- Purpose We suggest a method to achieve anatomical reduction in mallet finger fractures that are insufficiently treated by the 2-extension block wire technique. Methods We performed a retrospective review of 18 patients who were found to have an irreducible dorsal fragment and distal interphalangeal joint incongruence owing to rotation of the dorsal fragment in the sagittal plane. In these cases, we additionally employed a dorsal counterforce technique to supplement the 2-extension block technique. An additional K-wire was used to apply counterforce against the distal part of the dorsal fragment and control rotation in the sagittal plane. Results All 18 fractures united. Congruent joint surfaces and anatomical reduction were seen in all cases. The mean active flexion of the distal interphalangeal joints was 83.8 degrees (range, 79 degrees-88 degrees) and the mean extension loss was 0.4 degrees (range, 0 degrees-4 degrees). Conclusions We believe that the dorsal counterforce technique effectively supplements the 2-extension block K-wire technique and aids control of dorsal fragment rotation in the sagittal plane. Copyright (C) 2019 by the American Society for Surgery of the Hand. All rights reserved.
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