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14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

17.06. - 21.06.2019, Berlin

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Open wedge phalanx osteotomy for correction of Wassel type IV-D thumb duplication with zigzag deformity

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  • presenting/speaker Jianghai Chen - Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
  • Fangxing Ai - Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
  • Kun Wang - Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
  • Yan Zhang - Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China

International Federation of Societies for Surgery of the Hand. International Federation of Societies for Hand Therapy. 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT). Berlin, 17.-21.06.2019. Düsseldorf: German Medical Science GMS Publishing House; 2020. DocIFSSH19-1058

doi: 10.3205/19ifssh1162, urn:nbn:de:0183-19ifssh11627

Published: February 6, 2020

© 2020 Chen et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Objectives/Interrogation: Wassel type IV duplications angulated inversely is the most complicated and common subtype associated with Wassel type IV polydactyly. The objective of this study is to align the IP joint by use of open wedge proximal phalanx osteotomy to obtain better outcome for reconstruction of zigzag deformity.

Methods: Between 2015 and 2017, 14 patients were treated for thumb duplication with zigzag deformity by useof open wedge osteotomy at the proximal phalanx to correct deviation at the interphalangeal joint from the central axis. The mean age of patients at the time of surgery was 11 months (range, 6-15 months). Preoperative and postoperative X-ray were obtained in all cases to provide information about the zigzag pattern of bone involvement and monitor growth changes over time. Patients were followed for a mean of 26 months (range, 16-36 months).

Results and Conclusions: The results were evaluated according to form for thumb polydactyly of the Japanese Society for Surgery of the Hand. By the end of follow-up, 12 cases were rated good, 2 cases fair. Therefore, this approach may be considered as a good alternative for reconstructing Wassel type IV polydactyly with zigzag deformity.