Department of Traumatology, Tianjin Hospital, Tianjin, China 300211

First author: Qiang Dong, male, 1974-, deputy chief physician, Department of Traumatology, Tianjin Hospital, address: No. 406 of Jiefang South Road, Hexi District , Tianjin, China 300211


Objective: To compare the effect of PFNA minimally invasive internal fixation and Gamma nail internal fixation on the posto- perative slippage of fixing needle in aged subjects with femoral intertrochanteric fracture and the change of reset image.

Patients and methods: Patients who were treated in our hospital from January 2015 to April 2016, about one hundred seventy eighty of them, having femoral intertrochanteric fracture were chosen as the subjects. As per a random number table, they were divi- ded into two groups- Group A and Group B. A group of patients with PFNA minimally invasive internal fixation, B group of patients with Gamma nail internal fixation. The clinical efficacy, hip joint function, slippage of fixing needle and reset image were evaluated in both groups.

Results: Compared to the control group, it was observed that Group A’s effective rate was greater by a significant amount (P <0.05). Compared to Group B, the operation time, discharge time and healing time were much lesser (P <0.05). The bleeding volume in group A was significantly less than that in group B (P < 0.05). In the amount of fixing needle slippage between the two groups, no main variations were found (P > 0.05). Six months after operation, the Group A patients’ TAD lagged behind group B patients’, and the collodiaphysial angle of group A was higher than that of group B, statistically, there was much variation (P < 0.05). In the inci- dence of complications such as infection, femoral fracture, nonunion, coxa varus and dysfunction, there was not much variation between the two groups (P > 0.05).

Conclusion: The two kinds of internal fixation both have good clinical curative effects on the elderly femoral intertrochanteric fracture, however, the PFNA minimally invasive internal fixation is more effective, with smaller changes of postoperative TAD and collodiaphysial angle.


PFNA minimally invasive internal fixation, Elderly femoral intertrochanteric fracture, fixing needle slippage, Reset image