Abstract: Objective To compare the effect of positive or negative anterior cortical support for intertrochanteric femur fractures on postoperative rehabilitation of patients. 
Methods A total of 140 patients with intertrochanteric femur fractures were enrolled. All of them were divided into positive group and negative support group. The patient′s recovery and training plan after operation were observed, and the patient′s bleeding volume, weight-bearing time, Harris scores, and visual analogue scale/score(VAS)were recorded. 
Results The postoperative functional rehabilitation and weight-bearing time of stable fracture group were not influenced by the type of support， but there was a significant difference in duration of operation(P＜0.05). Significant difference was found in weight-bearing time, Harris scores andVAS scores in positive and negative support of unstable fracture group(P＜0.05). 
Conclusion For stable fracture, positive support or partial negative support all can achieve satisfactory postoperative rehabilitation. For unstable fracture, positive support or neutral support is mandatory, otherwise it will lead to serious postoperative complications. Postoperative CT examination should be used routinely to guide the surgeon to develop a more individualized treatment plan.

Key words: hip fractures, treatment outcome, aged ,