• J Shoulder Elbow Surg · Jan 2018

    Multicenter Study

    Adolescent clavicle nonunions: potential risk factors and surgical management.

    • Andrew T Pennock, Eric W Edmonds, Donald S Bae, Mininder S Kocher, Ying Li, Frances A Farley, Henry B Ellis, Philip L Wilson, Jeffrey Nepple, J Eric Gordon, Samuel C Willimon, Michael T Busch, David D Spence, Derek M Kelly, Nirav K Pandya, Coleen S Sabatini, Kevin G Shea, and Benton E Heyworth.
    • Department of Orthopedics, Rady Children's Hospital, San Diego, CA, USA. Electronic address: apennock@rchsd.org.
    • J Shoulder Elbow Surg. 2018 Jan 1; 27 (1): 29-35.

    BackgroundClavicle nonunions in adolescent patients are exceedingly rare. The purpose of this study was to evaluate a series of clavicle nonunions from a pediatric multicenter study group to assess potential risk factors and treatment outcomes.MethodsA retrospective review of all clavicle nonunions in patients younger than 19 years was performed at 9 pediatric hospitals between 2006 and 2016. Demographic and surgical data were documented. Radiographs were evaluated for initial fracture classification, displacement, shortening, angulation, and nonunion type. Clinical outcomes were evaluated, including rate of healing, time to union, return to sports, and complications. Risk factors for nonunion were assessed by comparing the study cohort with a separate cohort of age-matched patients with a diaphyseal clavicle fracture.ResultsThere were 25 nonunions (mean age, 14.5 years; range, 10.0-18.9 years) identified, all of which underwent surgical fixation. Most fractures were completely displaced (68%) initially, but 21% were partially displaced and 11% were nondisplaced. Bone grafting was performed in 24 of 25 cases, typically using the hypertrophic callus. Radiographic healing was achieved in 96% of cases. One patient (4%) required 2 additional procedures to achieve union. The primary risk factor for development of a nonunion was a previous history of an ipsilateral clavicle fracture.ConclusionsClavicle nonunions can occur in the adolescent population but are an uncommon clinical entity. The majority occur in male patients with displaced fractures, many of whom have sustained previous fractures of the same clavicle. High rates of union were achieved with plate fixation and the use of bone graft.Copyright © 2017 Journal of Shoulder and Elbow Surgery Board of Trustees. Published by Elsevier Inc. All rights reserved.

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