Abstract:

BACKGROUND: Now, domestic total hip arthroplasty (THA) surgeries are mainly traditional THA with posterolateral approach which has larger damage and slower recovery. Minimally invasive surgery is not popularization utilization, studies on minimally invasive THA with anterolateral approach are rarely and clinical randomized controlled trial studies are almost blank.
OBJECTIVE: To compare the clinical effect of the minimally invasive THA with anterolateral approach and the traditional THA with posterolateral approach.
METHODS: Totally 102 patients who treated with THA from Affiliated Wuxi People’s Hospital of Nanjing Medical University from June 2008 to September 2009 were randomly divided into experimental group (n=55) and control group (n=47). The minimally invasive THA with anterolateral approach was used for the experimental group, and the traditional THA with posterolateral approach was used for the control group.
RESULTS AND CONCLUSION: Compared with the control group, incision length, operation time were shorter, hemorrhage amount was less (P < 0.05), Harris score was higher at postoperative early stage (2 weeks, 3 months) in the experimental group (P < 0.05). There was no difference in the abduction angle of acetabulum cup and complications between the two groups (P > 0.05). Harris score in the two groups had no significant difference at postoperative six weeks and one year (P > 0.05). It is indicated that the minimally invasive THA with anterolateral approach is a safe and effective technique with the advantages of less surgical trauma, shorter operation time, fewer blood loss, slighter pain and rapid recovery of function.