Comparative Study Of Proximal Femoral Nail Anti-rotationⅡand Third Generation Of Gamma Nail In Treatment Of Femoral Intertrochanteric Fractures

Objective: To compare the effects of proximal femoral nail anti-rotation Ⅱ(PFNA-Ⅱ) versus third generation of Gamma nail (TGN) in treatment of femoral intertrochantericfractures.Methods：Between January2008and September2011,242patients with femoralintertrochanteric fractures were treated with PFNA-Ⅱ(114patients) or TGN (128patients).The difference between the2groups was not significant in preoperative evaluation andcomparability existed. The clinic data of surgical trauma, postoperative function andcomplications of the2groups were statistically compared in this study.Results: Operative time: PFNA-Ⅱgroup（57.9±20.2）min，TGN group（75.0±24.7）min（p<0.05）； fluoroscopy frequency：PFNA-Ⅱgroup（19.7±2.3），TGN group（21.1±2.6）（p<0.05）；intra-operative active blood loss：PFNA-Ⅱgroup（146.1±112.7）ml，TGN group（185.7±137.6）ml（p<0.05）；length of incision：PFNA-Ⅱgroup（7.3±2.1）cm，TGN group（6.6±2.1）cm（p>0.05）；fracture union time：PFNA-Ⅱgroup（11.7±2.8）week，TGN group（12.5±2.3）week（p>0.05）；Harris hip score：PFNA-Ⅱgroup（84.7±14.8），TGN group（82.5±15.2）（p>0.05）. Moreover, this study suggested thatnone of the2groups suffered cut out, failure of internal fixation, nonunion and otherpostoperative complications.Conclusions: Compared with TGN, PFNA-Ⅱ displayed superiority in the operativetime, fluoroscopy frequency, intra-operative active blood loss, but no advantages infunctional outcomes, intra-operative and postoperative complications.