Results of Patients with Unstable Femoral Intertrochanteric Fractures Treated with Proximal Femoral Nail Antirotation II / 대한정형외과학회잡지

ABSTRACT

PURPOSE: The purpose of this study was to evaluate radiologic and functional outcomes of patients with unstable femoral intertrochanteric fractures treated with proximal femoral nail antirotation II (PFNA II). MATERIALS AND METHODS: Between August 2009 and December 2013, 108 hips (108 patients) with unstable femoral intertrochanteric fractures were treated with PFNA II and followed for at least 1 year. The mean follow-up period was 15.2 months. The radiographic outcomes, reduction state, sliding distance of the helical blade, bone union, and complications were assessed. The functional outcomes were assessed according to the Charnley hip pain scoring system, walking ability, and the Activities of Daily Living index. RESULTS: The postoperative radiograph showed a good or acceptable reduction in all cases. The mean sliding length of the blade was 4.1 mm. The mean duration of radiologic bone union was 4.8 months. There were 2 postoperative complications including nail breakage and nonunion. The mean Charnley hip pain score was 5.1 points. Preoperative walking ability was restored for 74.1% of patients. Preoperative activities of daily life were restored for 60.2% of patients. CONCLUSION: PFNA II used for treatment of unstable intertrochanteric fracture showed favorable outcomes. However, due to decreasing walking ability and delayed return to the activities of daily living, further studies are needed, focusing on functional recovery and rehabilitation to improve postoperative clinical outcomes.