Abstract：Objective To investigate the clinical effect and biomechanical characteristics of the modified proximal femoral nail anti-rotation（PFNA-Ⅱ）and dynamic hip screw（DHS）in the treatment of femoral intertrochanteric fractures.Methods 60 cases of patients with femoral intertrochanteric fractures who were treated in department of orthopedics in the hospital from September 2011 to September 2015 were selected and divided randomly into two groups according to the random number tablemethod.The effects，length of incision，amount of intraoperative bleeding，surgicalduration，postoperative complicationrate of PFNA-Ⅱ group（treated with PFNA-Ⅱ，n=30）and DHS group（treated with DHS，n=30）were compared.Results The total effective rate of the femoral intertrochanteric fractures was 96.7%，and therewas no difference between PFNA-Ⅱgroup and DHSgroup（93.3%）（P＞0.05）.The length of incision，the amount of intraoperative bleeding and surgicalduration of PFNA-Ⅱgroup was less than that of DHS group respectively，with statistical differences（P＜0.05）.Only 1 case of pulmonary infection occurred in PFNA-Ⅱgroup，with the complicationrate accounting for 3.3%in PFNA-Ⅱgroup；two cases of pulmonary infections and 1 case of hip inversion occurred in DHS group，with the complication rate accounting for 10.0%，with no difference between the two groups（P＞0.05）.Conclusion PFNA-Ⅱ demonstrates the advantages of less bleeding，shorter surgical duration，better safety and effectiveness over DHS in the treatment of femoral intertrochanteric fractures，which ismore suitable for patientswith osteoporosis and deserves greater popularization and application.
袁丹. 髓内及髓外内固定治疗股骨粗隆间骨折的临床效果及生物力学研究[J]. 中国当代医药, 2016, 23(24): 55-57.
YUAN Dan. Clinical effect and biomechanical study of intramedullary and intramedullary fixation in the treatment of femoral intertrochanteric fractures. 中国当代医药, 2016, 23(24): 55-57.
Steinberg EL，Sternheim A，Blachar A.Femoral head density on CT scans of patients following hip fracture fixation by expandable proximal peg or dynamic screw［J］.Injury，2010，41（6）：647-651.
Rose DM，Smith TO，Nielsen D，et al.Expandable intramedullary nails for humeral fractures：a systematic review of clinical and radiological outcomes［J］.Eur JOrthop Surg Traumatol，2013，1（4）：1-11.
［7］
Tyagi V，Yang JH，Oh KJ.A computed tomography-based analysis of proximal femoral geometry for lateral impingementwith two types of proximal femoral nail anterotation in subtrochanteric fractures［J］.Injury，2010，41（5）：857-861.
京公网安备 11010502046607号