Early results of the proximal femoral nail antirotation-Asia for intertrochanteric fractures in elderly Chinese patients

Objectives: To report early efficacy and safety of the proximal femoral nail antirotation-Asia for intertrochanteric fractures in elderly Chinese patients. Methods: This retrospective study was carried out in the Second Hospital of Anhui Medical University, Anhui, China between June 2009 and December 2012. A total of 108 patients with intertrochanteric fractures were available for the outcome analysis in the study. There were 62 female and 46 male patients with a mean age of 75 ± 10 years. The stable group included 18 cases of 31 A1 fractures, the unstable group included 68 cases of 31 A2 fractures, and 22 cases of 31 A3 fractures. Follow-up evaluations were performed at 1, 3, 6, 9, and 12 months, and every year thereafter. Results: During the average 29 ± 9 months early follow-up period, 4 patients (4%) were lost, and 6 patients (6%) died within 6 months due to causes unrelated to the fracture. Fracture union occurred in all patients, 83 patients (85%) showed an excellent, or good outcome. The mean Harris Hip Score was 85.2 ± 7.5 points. Mechanical failures, such as bending, or breaking of the implant were not seen, and cut-outs were not observed. Conclusion: The results suggest that proximal femoral nail antirotation-Asia is effective and safe in the treatment of inter-trochanteric fractures in elderly Chinese patients.