Total hip arthroplasty using posterior minimal incision approach

초록

The twenty hips of the posterior minimal invasive approach group(group II) were matched with twenty hips of tranditional posterior approach group(group I), and we compared incision length, operative time, blood loss, period of admission, postoperative rehabilitation time, complications, and position of the acetabular cup and femoral stem between group I and group II. Results: The average incision length was 16.1 cm(range, 14-19.5 cm) in group I and 9.2 cm(range, 7.5-10.3 cm) in group II(p<0.05). The average operative time 83.2 minnutes(range, 65-110 minutes) in group I and 70.4 minutes(range, 60-100 minutes) in group II(p>0.05), the operative time of group II was longer than group I in initial, but getting shorter and shorter. The average blood loss was 965 ml(range, 350-1950 ml) in group I and 920 ml(range, 300-1950 ml) in group II(p>0.05). The average period of admission and rehabilitation was 18.5 days(range, 14-21 days), 8.1 days(range, 3-14 days) in group I and 12.5 days(range, 8-18 days), 5.5 days(range, 3-10 days) in group II(p>0.05). Postoperative position of the acetabular cup and femoral stem was satisfactory in all cases, and no complications were observed in all cases. Conclusion: In spite of the discomfort of operative procedures, the posterior minimal incision approach in primary total hip arthroplasty has the advantage of smaller incision, small amount of blood loss, and shorter rehabilitation time.