The strength and function of hip abductors following anterolateral minimally invasive total hip arthroplasty

作     者：Tan Jixiang Chen Hong Chen Cheng Liang Xi Huang Wei 

作者机构：Department of Emergency & Critical Care MedicineFirst Affiliated Hospital Chongqing Medical UniversityChongqing 400016 China Department of Orthopedic Department First AffiliatedHospital Chongqing Medical University Chongqing400016 China 

出 版 物：《Chinese Journal of Traumatology》 (中华创伤杂志（英文版）)

年 卷 期：2014年第17卷第2期

页      面：73-78页

核心收录：

学科分类：0403[教育学-体育学] 1002[医学-临床医学] 10[医学] 

基　　金：This work was financially supported by the Natural Science Foundation of China （Grant No. 31070875）. 

主　　题：髋关节 肌力 置换 Harris 类风湿性关节炎 强度 临床检查 骨性关节炎 

摘      要：Abstract：Objective:To analyze the extent of postoperative hip abductor insufficiency in primary total hip arthroplasty (THA) patients undergoing anterolateral minimally invasive (ALMI) approach,and to investigate whether the clinical outcomes are more favorable in femoral neck fracture (FNF) patients than in non-femoral neck fracture (nFNF) patients.Methods:A total of 48 patients were enrolled in this study.Each patient underwent a clinical examination preoperatively and 6,12,24 and 48 weeks postoperatively.The abductor torque,Trendelenburg s sign,gait velocity,Harris hip score,Oxford hip score,Westren Ontario and McMaster Universities (WOMAC) score and visual analog scale pain score were recorded.Statistical evaluation was performed with SPSS software version 18.0.The significance level was set at P0.05.Results:The abductor torque of the operated hip and the recovery ratio showed a gradual improving tendency from 6 weeks postoperatively until the last follow-up.Gait velocity,Harris hip score,Oxford hip score and WOMAC score improved significantly after the operation until 24 weeks postoperatively.In the FNF group,the abductor torque of the operated side and the recovery ratio were significantly higher than in nFNF group at 6 weeks postoperatively,however,as time passed,this trend tended to disappear.Conclusion:This study demonstrates that patients can obtain good abductor strength and function in the early postoperative period and the hip abductor function of patients who suffer from hip osteoarthritis,rheumatoid arthritis,avascular necrosis of the femoral head could be significantly improved following ALMI THA。