Abstract: ［Abstract］ Objective〖HTSS〗To explore clinical curative effect of dual mobility total hip replacement(DMTHR) and proximal femoral nail anti-rotation(PFNA) on intertrochanteric fractures(IF) in the elderly.
〖WTHZ〗Methods〖HTSS〗Seventy-seven elderly IF patients who were admitted to the hospital were enrolled. Thirty-two patients underwent DMTHR(DMTHR group), while the other 45 patients underwent PFNA(PFNA group). Perioperative indexes, pain scores, postoperative hip function and occurrence of complications were compared between two groups.
〖WTHZ〗Results〖HTSS〗The operation time, weight-bearing time on the ground and hospitalization time in DMTHAPR group were shorter than those in PFNA group, while intraoperative blood loss was more than that in PFNA group(P＜0.05). At 2 weeks after surgery, there was no significant difference in pain scores between two groups (P＞0.05). At 3 and 6 months after surgery, pain scores in DMTHAPR group were significantly lower than those in PFNA group(P＜0.05). At the last follow-up, Harris score of DMTHAPR group was better than that of PFNA group(P＜0.05). There was a statistically significant difference in the Harris score between the total hip double-action replacement group and the PENA group（P＜0.05）.
〖WTHZ〗Conclusion〖HTSS〗The curative effect of DMTHAPR is relatively better on IF in the elderly. Compared with PFNA, it can shorten postoperative recovery time, and improve hip function.

Key words: arthroplasty, replacement, hip, femoral fractures； Internal Fixators