2001 Volume 50 Issue 4 Pages 1181-1183
This study reviewed the radiological findings and clinical results in 29 cases who underwent the enlargement of the lumber vertebral canal for lumber degenerative scoliosis. The preoperative radiological findings were as follows: Cobb's angle <25 degress, all cases; reght convex curve, 12 cases (41%); type I (Toyama's criteria), 8 cases (28%); grade I, 18 cases (Nash & Moe's criteria); degenerative spondylolysthesis, 15 cases (52%); posterior spondylolysthesis, 10 cases (35%); and instability, 8 cases (28%). The clinical results were defined according to Hirabayashi's scale. 9 cases were categorized as excellent, 7 as good, 9 as fair, 3 as poor, and 1 as worse. There was no statistic relationship between the clinical results and radiological findings, in our experieuce of lumbar spinal surgery.
Enlargement of the lumbar vertebral canal for less than 25 degrees in Cobb's angle can be performed for lumbar degenerative scoliosis, but in cases over 25 degrees with high rotational instability, wide laminectomy with instrumentation should be selected.
