• Eric Swart, Hariklia Bezhani, Justin Greisberg, and J Turner Vosseller.
• Columbia University Medical Center, 622 West 168th Street, PH-1130, New York, NY 10032, United States. Electronic address: ericswartmd@gmail.com.
• Injury. 2015 Jan 1; 46 (6): 1127-30.

BackgroundAnkle fractures are common injuries treated routinely by orthopaedic surgeons. A variety of different post-operative protocols have been described with differing periods of non-weight bearing after surgery. The aim of this study was to identify how patient injury characteristics and medical comorbidities contribute to the period of non-weight bearing chosen by orthopaedic surgeons after open reduction and internal fixation of rotational ankle fractures.MethodsA cross sectional expert opinion survey was administered to members of the AOFAS as well as OTA to determine how long they would instruct patients to be non-weight bearing after open reduction and internal fixation of ankle fractures. Three different injury characteristics were described: supination external rotation type 4 equivalents, bimalleolar, and trimalleolar patterns. These patterns were combined with three different medical statuses: young and healthy, older and healthy, and older with significant medical comorbidity. Respondents selected how long they would keep the patient non-weight bearing after surgery for each of the potential scenarios. Finally, they were directly asked which factors they felt affected their decision about length of time to keep patients non-weight bearing.ResultsSeven hundred and two surgeons (31%) responded to the survey. The average time of non-weight bearing selected varied from 4.9 (± 3.1) weeks for in young, healthy patients with SER4 equivalent injuries to 7.6 (± 6.0) weeks for older patients with medical comorbidities with trimalleolar fractures. Responses had a high degree of heterogeneity, but both injury pattern and medical status were significant predictors of non-weight bearing period (p<0.01), with medical status the stronger determinant.ConclusionsThere is significant variation among orthopaedic surgeons when selecting period of non-weight bearing after fixation of ankle fractures, with both injury pattern and medical comorbidity playing a role in decision of time to keep patient non-weight bearing. Further research further evaluating the relationship between these factors and safe periods of non-weight bearing could help identify patients that may benefit from earlier mobilization, and improve surgeon's comfort with early mobilization.Level Of EvidenceTherapeutic Level V.Copyright © 2015 Elsevier Ltd. All rights reserved.

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