Analysis of clinical efficacy and safety of minimally invasive internal fixation with PFNA in treatment of in-tertrochanteric fracture of femur

LIU Xin; LI Quan-xiu; LV Hai-bo

doi:10.3969/j.issn.1674-3806.2015.08.14

Abstract：Objective To observe the clinical efficacy of minimally invasive proximal femoral nail anti rotation ( proximal femoral nail anti-rotation PFNA) in the treatment of intertrochanteric fractures of femur , and to evaluate its safety and adverse reaction .Methods 60 patients with intertrochanteric fractures of femur were collected in our hospi-tal from January 2012 to January 2013 and were divided randomly into two groups , with 30 cases in each group .The ob-servation group received minimally invasive internal fixation of PFNA and the control group received dynamic hip screw (dynamic hip screw,DHS) treatment with a follow-up of 1 years.The efficacy rate, Harris hip score and the incidence of complication were compared between the two groups .Results The operation time, bleeding volume, load time, frac-ture healing time in the observation group were (69.7 ±17.4)min, (317.9 ±81.3)ml, (96.4 ±11.3)d and (18.5 ± 3.1)w respectively, and were significantly better than those in the control group[(89.4 ±19.1)min, (476.3 ±89.5)ml, (113.3 ±12.5)d and (21.9 ±3.2)w](P<0.01);Harris hip scores of the observation group were excellent in 19 ca-ses(63.3%), good in 7 cases(23.3%),modest in 3 cases(10.0%), poor in 1 case(3.3%), which was significantly better than those of the control group , P<0.01.The patients in the observation group occurred coxa vara in 1 case (3.3%), delayed union in 1 case(3.3%), with the incidence of adverse reactions in 6.7%and there was no signifi-cant difference between the two groups , P>0.05.Conclusion The effect of minimally invasive PFNA in the treatment of femoral intertrochanteric fracture Kerr is efficacious and safe and has less postoperative complications .