INTRODUCTION: Advantages of minimally invasive total hip arthroplasty (THA) are controversially discussed. METHOD: In this prospective study 51 patients (52 hips) were randomly allocated to a classical lateral or a minimally invasive approach (modification of the Hardinge-approach). Operating time, intraoperative blood loss, postoperative hemoglobin, muscle enzymes CK and myoglobin were recorded. Radiologically the positioning of the prosthesis was analyzed. WOMAC- and Harris Hip Score (HHS) were assessed preoperatively, at discharge, at 6 weeks and 3 months. RESULTS: In the minimally invasive group there was a shorter length of surgery, the scores in the WOMAC and HHS were slightly better at discharge and at the 3 months- examination, myoglobin-rise was slightly less. The positioning of the prosthesis was good in both groups. Minimally invasive THA led to a quicker recovery, at 3 months postoperative there was still a slight difference to the standard group. CONCLUSION: If these slight differences subside has to be examined in studies with a longer follow-up.
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INTRODUCTION: Advantages of minimally invasive total hip arthroplasty (THA) are controversially discussed. METHOD: In this prospective study 51 patients (52 hips) were randomly allocated to a classical lateral or a minimally invasive approach (modification of the Hardinge-approach). Operating time, intraoperative blood loss, postoperative hemoglobin, muscle enzymes CK and myoglobin were recorded. Radiologically the positioning of the prosthesis was analyzed. WOMAC- and Harris Hip Score (HHS) were assessed preoperatively, at discharge, at 6 weeks and 3 months. RESULTS: In the minimally invasive group there was a shorter length of surgery, the scores in the WOMAC and HHS were slightly better at discharge and at the 3 months- examination, myoglobin-rise was slightly less. The positioning of the prosthesis was good in both groups. Minimally invasive THA led to a quicker recovery, at 3 months postoperative there was still a slight difference to the standard group. CONCLUSION: If these slight differences subside has to be examined in studies with a longer follow-up.
Authors: Inge H F Reininga; Wiebren Zijlstra; Robert Wagenmakers; Alexander L Boerboom; Bregtje P Huijbers; Johan W Groothoff; Sjoerd K Bulstra; Martin Stevens Journal: BMC Musculoskelet Disord Date: 2010-05-17 Impact factor: 2.362