Abstract
The main objective of this study was to retrospectively evaluate the clinical and radiographic outcomes of displaced distal humeral metaphyseal-diaphyseal junction fractures in children treated by elastic stable intramedullary nailing (ESIN). During the study period, 14 consecutive children with fractures of the distal humeral metaphyseal-diaphyseal junction were surgically treated by ESIN. All patients underwent full-length preoperative and postoperative anteroposterior and lateral radiographs of the injured humerus. One year after the index surgery, patients were asked to answer the short version of the Disabilities of the Arm, Shoulder and Hand outcome questionnaire (Quick DASH). During the study period, fractures of the distal metaphyseal-diaphyseal humeral junction represented 1.5% (16/1100) of all humeral fractures. Fourteen patients underwent surgery and met the inclusion criteria. The male to female ratio was 1:1. The average patient age at the time of injury was 9.7 years (range, 3.6 to 13.7 y). The left and right sides were equally affected. The mean follow-up was 28.1 months (range, 20 to 38 mo).Radiologically, no secondary displacement, nail migration, loss of fixation, consolidation delay, nonunion, or refracture was noted. None of the patients showed signs of growth arrest on either radiologic or clinical assessment.All patients returned to their previous daily and sport activities without discomfort or difficulty, and they were free of pain at their last follow-up visits. The injured elbow range of motion was comparable with that of the contralateral side at the last follow-up visit in all patients. The mean Quick DASH score was 0.81 (range, 0 to 6.8). We recommend surgery for displaced fractures of the distal humeral metaphyseal-diaphyseal junction. ESIN results in stable reduction, good rotational control, and faster mobilization. Level IV.
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