• Chia-Hsieh Chang, Hsuan-Kai Kao, Wei-Chun Lee, and Wen-E Yang.
• Department of Orthopaedics, Chang Gung Memorial Hospital, Taoyuan, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan; Bone and Joint Research Center, Chang Gung Memorial Hospital, Linkou, Taiwan. Electronic address: chiahchang@gmail.com.
• Injury. 2015 Nov 1; 46 (11): 2181-4.

IntroductionObesity was associated with poor treatment outcome in paediatric supracondylar humeral fractures. It is controversial about the association is related to more severe fractures in obese children or obesity directly affects treatment. The purpose of this study was to evaluate the influence of obesity on surgical outcomes after control of fracture severity.Patients And MethodsThis is a retrospective comparative study of 107 children treated for type III supracondylar humeral fractures between January 2009 and December 2013. Children were classified according to sex-specific body mass index (BMI)-for-age growth chart into 4 groups: underweight group (n=10); normal-weight group (n=71); overweight group (n=13); and obese group (n=13). Clinical outcomes were assessed using the Flynn criteria. Radiographic evaluation included the Baumann angle and the lateral humerocapitellar angle. Loss of reduction was defined by Skaggs' criteria.ResultsThe mean age, sex, and Flynn criteria were comparable among the four BMI groups. Obese children were more likely to develop a varus change in the Baumann angle (p=0.017) and loss of reduction in varus (p=0.059) postoperatively. The risk for pin-related complications was significantly higher in overweight and obese children (p=0.013).ConclusionsObesity was associated with more postoperative varus deformation and pin-related complications after surgical fixation for type III supracondylar fracture. These findings underline the importance of stable fixation and close post-operative monitoring in obese children.Copyright © 2015 Elsevier Ltd. All rights reserved.

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