Objective: To examine the clinical outcome of minisubvastus approach, a true quadriceps-sparing approach for minimally invasive knee arthroplasty.
Material and method: Between January 2005 and January 2008, 398 knees were included in this study. We evaluated the results of primary total knee arthroplasties performed with minisubvastus approach in patients at a minimum 1-year follow-up period. A retrospective review of the patient medical records was used.
Results: The mean wound length was 11 centimeters and mean blood loss was about 478 milliliters. An average total operative time was 112 minutes. The mean femorotibial angle was corrected from 8 degrees varus preoperatively to 4 degrees valgus postoperatively. Pain assessed by WOMAC score was much improved as the mean score decreased from 50.84 at preoperative to 26.81 at one-year postoperative period.
Conclusion: Minisubvastus arthroplasty is effective and can be performed in almost of knee deformities.