The Clinical Efficacy Of Anterolateral Approach Minimally Invasive Totai Hip Arthroplasty With Reserving Articular Capsule

Objective To compare the clinical efficacy between OCM minimally invasive tota I hip arthroplasty with reserving articular capsule and standard total hip arthroplasty.Methods Selected 106 patients(106 hips) from January 2009 to January 2014 in our hospital, 53 cases(53 hips) take OCM minimally invasive tota I hip arthroplasty with reserving articular capsule surgery approach(OCM group),and other 53 cases(53 hips) underwent traditional hip arthroplasty surgery(traditional group). The operative time,intraoperative bleeding loss 、 preoperative and postoperative hemoglobin 、hematocrit、CK-NAC、CRP、length of incision 、hemoglobin before transfusion、postoperative drainage with 3 days, postoperative transfusion、postoperative walking time, postoperative complications, postoperative Harris hip score and WOMAC score after 1 month and 1 year, prosthetic position, hospitalization time were compared and analyzed between the two groups.Results Follow-ups were done for 7 to 36 months(21.2 months on average). OCM group were significantly better than the group in blood loss, postoperative drainage within 3 days, postoperative hemoglobin and hematocrit before transfusion、CK-NAC、CRP 、 postoperative transfusion 、 incision length, ambulation, hospitalization time(P<0.05).There were no significant differences in postoperative Harris hip score and WOMAC score after 1 month and 1 year, prosthetic position.Conclusions To compared with traditial THA,the adavantages of OCM minimally invasive tota I hip arthroplasty with reserving articular capsule surgery approach are minor tissue trauma, less postoperative pain, less blood lost, fast functional recovery.But the operation is relatively complex, can only be take by surgeons who have rich experience and hospitals which have necessary instruments.