Closed reduction of severely displaced radial neck fractures in children.

backgroundSeverely displaced radial neck fractures in skeletally immature children are rare and can be difficult to reduce. The purpose of this study is to evaluate the results using our reduction maneuver.

methodsFrom October 2011 to December 2015, 26 children with radial neck fractures(O'Brien type II, III and Judet type III, IV) were treated at our institute. All patients underwent percutaneous K-wire leverage and radial intramedullary pinning in an average surgery time of 35 mins (15-80 min). The injured arm was immobilized at the functional position with plaster for 4-6 weeks, evaluated clinically and radiologically. The Metaizeau classification and Mayo elbow performance score were used to evaluate the radiological and clinical results, respectively. Percutaneous K-wire leverage and radial intramedullary pinning were performed for 26 patients. No patients were treated with open reduction. Twenty four patients were followed up for a mean of 33 (range 12-53 months) months.

resultsThere were 15 girls and 9 boys with ages ranging from 1.5 to 12 years and an average age of 7.2 years. Percutaneous K-wire leverage reduction and intramedullary pinning were successfully used in an average total surgery time of 35 mins (range 15-80 min). In total, 2 cases (O'Brien type III and Judet type IVb, angulation = 90°) needed the additional maneuver. Bone union was achieved in all patients within a mean time of 4.2 weeks. The clinical results were evaluated basing on the Mayo elbow performance score, and there were 23 excellent results and one good result. There were no refractures and no incidences of nonunion, suture infection, iatrogenic radial nerve injury, asymptomatic enlargements of the radial head or growth arrest in the proximal radial epiphysis.

conclusionOur modified percutaneous leverage technique with radial intramedullary fixation may be successfully used to avoid open reduction.