Comparison of the effect of PFNA and DHS in the treatment of elderly patients with intertrochanteric femur fracture

Objective To compare the effects of proximal femoral nail antirotation （ PFNA） and dynamic hip screw （ DHS） in the treatment of elderly patients with intertrochanteric femur fracture .Methods According to the digital table ,92 elderly patients with intertrochanteric femur fracture were randomly divided into the PFNA group （ n=46） and the DHS group（n=46）.The PFNA group was treated with PFNA and the DHS group was treated with DHS . The clinical effect was compared between the two groups .Results The operation time ,postoperative ambulation time , hospitalization time,blood loss and postoperative wound drainage of PFNA group were （58.3 ±19.7） min,（7.4 ± 4.1）d,（16.1 ±6.2）d,（97.6 ±34.7）mL,（64.7 ±12.4）mL,respectively,which were better than those of DHS group[（81.3 ±20.4）min,（11.4 ±3.8）d,（19.7 ±5.8）d,（206.3 ±35.4）mL,（75.2 ±12.8）mL]（t=5.500, 4.853,2.875,14.872,3.996,all P〈0.01）.1 year after operation,the Harris score of hip joint of PFNA group was （88.5 ±6.2）points,which was higher than that of DHS group [（84.3 ±5.8）points]（t=3.355,P〈0.01）.The rate of good hip function was 93.5%,which was significantly higher than that of DHS group （73.9%）（χ^2 =6.451,P〈0.05）.The incidence rate of postoperative complications between the two groups had no statistically significant differ -ence（χ^2 =1.011,P〉0.05）.Conclusion PFNA has shorter operation time,and earlier postoperative ambulation time,good recovery of hip function .It also has smaller surgical trauma ,but not increase the incidence of postoperative complications in elderly patients with intertrochanteric femur fracture ,it’s worthy of promotion . Key words: Femoral fractures; Fracture fixation,intramedullary; Aged