Abstract: Objective To compare the clinical efficacy of DHS plus hollow screw and PFNA internal fixation in the treatment of intertrochanteric fractures in the elderly. Methods From June 2014 to September 2016, 80 elderly patients with intertrochanteric fractures admitted to our hospital were retrospectively analyzed. Among them, 40 cases were treated with DHS plus hollow screw (DHS group), while the other 40 cases were treated with PFNA internal fixation (PFNA group). The clinical data, operation conditions, hospitalization days, Harris score and postoperative complications in both groups were analyzed and compared. Results ①There was no significant difference between the two groups in terms of gender, age and fracture classification. ② The average incision length, operation time, intraoperative blood loss, post-operative drainage, weight-bearing time, fracture healing time of the cases in the PFNA group were significantly better than those of the cases in the DHS group;③There was no significant difference in the aspects of Harris score and postoperative complications between the two groups. Conclusion PFNA internal fixation is more suitable for elderly patients with intertrochanteric fractures, which is worthy of further promotion.

Key words: Dynamic hip screw, Proximal femoral nail anti-rotation, Intertrochanteric fracture