• Xinwu Wu, Ran Lin, Jinchen Chen, and Shunyou Chen.
• Department of Orthopedics, Fuzhou Second Hospital, Fuzhou 350007, China; Department of Orthopedics, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou 350007, China; Fujian Provincial Clinical Medical Research Center for First Aid and Rehabilitation in Orthopaedic Trauma, Fuzhou 350007, China; Fuzhou Trauma Medical Center, Fuzhou 350007, China.
• Injury. 2023 Feb 1; 54 (2): 547551547-551.

BackgroundSupracondylar humeral fractures are the most common type of pediatric elbow fractures, and are primarily treated using closed reduction and percutaneous pinning. For patients who are treated ≥14 days after the injury, after callus formation has occurred, closed reduction is usually not possible. The purpose of this study is to report the clinical outcomes of closed reduction with percutaneous Kirschner wire (K-wire) drill-and-pry for the delayed treatment of pediatric supracondylar humeral fractures with bony callus formation.MethodsWe retrospectively reviewed the data of 16 patients who underwent percutaneous K-wire drill-and-pry between November 2019 and August 2021 for the treatment of supracondylar humeral fractures with bony callus formation ≥14 days after the injury. Clinical outcomes were assessed using the Flynn criteria. The postoperative Baumann angle and pin configuration were evaluated using x-ray examinations.ResultsAll patients were followed up for 8-28 months (average, 16.63 months). The fractures healed in 4-6 weeks (average, 4.38 weeks). The operative time ranged from 10 to 124 min (average, 35.12 min). No iatrogenic vascular or nerve injury occurred. No patient developed cubitus varus. According to the Flynn criteria, 12 patients had excellent outcomes, 2 patients had good outcomes, 1 patient had a fair outcome and 1 patient had a poor outcome.ConclusionClosed reduction with percutaneous K-wire drill-and-pry is a mini invasive technique for supracondylar humeral fractures with bony callus formation in children. Most patients had a good clinical and cosmetic outcomes without scarring.Copyright © 2022. Published by Elsevier Ltd.

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