关键词: 关节成形术, 髋关节置换, 外科手术, 小切口, 传统切口

Abstract: 【Abstract】〓Objective〓To compare the mini-incision and traditional posterolateral surgical appr-oach for total hip arthroplasty and investigate the characteristic of the mini-incision short clinical efficacy. Methods〓Eighty cases were divided into two groups, in which 40 cases (MIS-THA group) underwent a mini-incision,.and 40 cases (THA group) received THA with standard posterolateral incision. The length of incision,.blood loss, operation time, anteversion angle of acetabulum cup, abduction angle of acetabulum cup,.Harris score and complications were observed and compared between two groups..Results〓All patients were followed with an average of 12 months (range from 6 to 24). Average length of incision for MIS-THA group was 8.5 cm (6.8-10.3 cm) and 18.2 cm (15.6-23.8 cm) for THA group. Hemorrhage amount and postoperative drainage blood loss in MIS-THA group and THA group were 163.8±15.6 ml, 325.4±20.3 ml and 283.5±13.5 ml, 410.4±27.6 ml respectively (comparison between two group, P<0.05)..Operative time for MIS-THA group was 89.4±14.2 min and 123.5±10.3 min for THA group(P<0.05)..According to the postoperative x-ray,.the abduction angle of acetabulum cup for MIS-THA group was 43.8±8.5° and 46.5±6.7° for THA group. The anteversion angle of cup was 22.8±3.5° for MIS group and 23.5±2.9°for THA group(P<0.05)..Regarding Harris hip score postoperation,.there were significant differences between two group at the first and the third month of fellow-up.(P<0.05),.but no significant differences at the sixth and twelfth month of fellow-up..No infection, fracture dislocation and neurovascular injury occurred in both groups. Conclusion〓Mini-incision THA approach reduces intraoperative blood loss,.postoperative drainage and operative time and this approach whould be beneficial to postoperative training rehabilitation.

Key words: Arthroplasty, Total hip replacement, Surgical procedures, Mini-incision, Traditional approach