Functional outcome of intertrochanteric fractures of hip treated with Proximal Femoral Nail Antirotation II (PFNA-2).

Abstract

Objective: To evaluate the functional outcomes and complication rates in patients with unstable intertrochanteric fractures treated with PFNA-2. Study Design: Retrospective study. Setting: Department of Orthopedics, Ghurki Trust and Teaching Hospital, Lahore. Period: January 2022 and December 2023. Methods: 86 patients (46 men and 40 women) with unstable intertrochanteric femur fractures treated with PFNA-2. For a year, the patients were monitored. Twelve months after surgery, the Modified Harris Hip Score (MHHS) was used to evaluate functional results. Results: The mean age of patients was 73.53 ± 16.66 years. Post-operatively, the mean MHHS was 80.38 ± 9.28. Functional outcomes were excellent in 16 patients (18.6%), good in 42 patients (48.8%), fair in 24 patients (27.9%), and poor in 4 patients (4.7%). Postoperative complications were observed in 8 patients (9.3%), including 4 cases of helical screw back-out (4.7%), 2 cases of cellulitis (2.3%), and 2 cases of deep vein thrombosis with cellulitis (2.3%). Conclusion: PFNA-2 demonstrates good functional outcomes and a low complication rate in handling unstable intertrochanteric fractures, particularly in the elderly. Its biomechanical advantages and minimally invasive nature make it a favorable option for surgical fixation.