Misdiagnosis of OTA type B (Weber B) ankle fractures leading to nonunion

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Title:	Misdiagnosis of OTA type B (Weber B) ankle fractures leading to nonunion
Author(s):	Donken, C.C.M.A.; van Laarhoven, C.J. ; Edwards, M.J.R. ; Verhofstad, M.H.J.
Publication year:	2011
Source:	Journal of Foot and Ankle Surgery, vol. 50, iss. 4, (2011), pp. 430-433
ISSN:	1067-2516
DOI:	https://doi.org/10.1053/j.jfas.2011.04.031
Publication type:	Article / Letter to editor
Please use this identifier to cite or link to this item : http://hdl.handle.net/2066/96107
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Subject:	NCEBP 2: Evaluation of complex medical interventions
Organization:	Surgery
Journal title:	Journal of Foot and Ankle Surgery
Volume:	vol. 50
Issue:	iss. 4
Page start:	p. 430
Page end:	p. 433
Abstract:	Little is known about the specific etiology of nonunion of stable Orthopaedic Trauma Association (OTA) type B fractures. In the present retrospective cohort study, we investigated all patients with a nonunion in a level 1 trauma center during an 8.5-year period. Patient history, clinical findings, radiographic features, and therapeutic aspects were critically evaluated to be able to predict the nonunion. In the predefined period, 388 patients were treated for a stable OTA type B fracture. Eight patients (2.1%) developed a nonunion. Retrospectively, the radiographic features in 6 of the 8 patients and clinical findings in 1 of the 8 patients could predict the nonunion. We conclude that in almost every nonunion occurring after a "stable" OTA type B fracture in the present study were, in fact, originally unstable fractures.