Abstract: Objective：To evaluate the clinical effects of greater trochanter femoral stem （GTF）and proximal femoral nail antirotation （PFNA）for the treatment of unstable intertrochanteric fractures in the elderly.Methods：A review study was conducted on 88 unstable intertrochanteric fractures in the elderly treated with GTF and PFNA form January 2012 to March 2018.The patients were divided into GTF（n=45）and PFNA（n=43）.The incision length，operation time，intraoperative blood loss，postoperative blood loss，weightbearing time，and Harris score of the last followup were compared between the two groups.Results： All 88 patients were followed up for 1.2 to 6 years with an averaged of 3.3 years.Compared with PFNA group，GTF group had shorter time to get out of bed with load，longer incision length，more bleeding volume during operation and more drainage volume after operation，the difference was statistically significant（P<0.05）.There was no significant difference in operation time between the two groups（P>0.05）.In the last followup，Harris score of hip joint in GTF group was significantly higher than that in PFNA group（P>0.05）.The difference between the two groups was statistically significant（P<0.05）.Conclusion：Both GTF and PFNA are effective methods for the treatment of unstable intertrochanteric fracture in the elderly.GTF can get out of bed early and reduce complications after operation.It can restore hip function as soon as possible with early functional exercise after operation which is especially suitable for unstable intertrochanteric fracture in the elderly.

Key words: intertrochanteric fracture, greater trochanter femoral stem, proximal femoral nail antirotation