Abstract:Objective To compare the clinical efficacy of dynamic hip screw(DHS) and InterTAN intramedullary nail in the treatment of intertrochanteric fracture with osteoporosis in elderly patients. Methods A total of 114 elderly patients with unstable intertrochanteric fracture of femur complicated with osteoporosis from April 2014 to April 2016 were selected as subjects.According to different treatment methods,the patients were divided into observation group (57 cases,treated with InterTAN intramedullary nail) and control group (57 cases,treated with DHS).The therapeutic effects of the two groups were observed.The length of incision,blood loss and operation time were recorded during the operation;the drainage volume and nature of the wound and the length of hospitalization were recorded after the operation;and the callus appearance time,fracture healing time,beginning weight-bearing time and complications were recorded during the follow-up.Harris score was used to evaluate hip function. Results The operation time,incision length,blood loss and wound drainage of the observation group were less than those of the control group,while the number of X-ray exposure was more than that of the control group (all P<0.05).The hospitalization time,callus appearance time,fracture healing time and weight-bearing time of patients in the observation group were significantly shorter than those in the control group (all P<0.05).There was no significant difference in Harris score between the two groups at 6 months after operation (P>0.05).The incidence of complications in the control group was significantly higher than that in the observation group (29.82% vs 5.26%,P<0.05),especially in coxa vara and femoral neck shortening. Conclusion Compared with DHS,InterTAN intramedullary nail has fewer operative time,blood loss,incision length and postoperative drainage,fewer complications,which is more suitable for intertrochanteric fracture with osteoporosis in the elderly.