抄録
Twelve patients (7 males, 5 females) with thoracolumbar burst fracture were treated with posterior instrumentation (one above, one below) and vertebroplasty using hydroxyapatite grafting between June 2005 and January 2008. The modified Frankel classification score was D0 in 10 patients and E in 2 before surgery, E in all at the final follow-up point.
We evaluated the kyphotic angle and parcentage ratio of vertebral collapse preoperatively, postoperatively and at the final follow-up point. The mean kyphotic angle was 14.1 degree preoperatively, 6.3 degrees postoperatively, and 10.8 degree at the final follow-up point. The mean correction loss was 4.5 degrees. The mean percentage ratio of vertebral collapse was 64.7% preoperatively, 83.3% postoperatively, and 73.2% at the final follow-up point. The mean correction loss was 10.1%. Patients with a load sharing classification score of 6 points tended to have a large correction loss.
We considered that this surgical procedure was useful, although there was some correction loss.
