Bilateral Laminotomy for Lumbar Spinal Stenosis; A Minimum 5-year Fol- low-up Results

Results: There were 25 men and 19 women, whose mean age was 62.3 years (range 43-78 years). The mean follow-up period was 70.5 months (range 67-73 months). The mean VAS score for back pain and leg pain decreased, from 5.8 to 3.6 and 7.1 to 3.1, respectively (both p<0.001). The mean ODI score improved from 51.2 to 22.4% (p<0.001). The mean subjective satisfaction rate was 68.8%. In one patient (2.3%), segmental instability developed at a treated level, which was treated conservatively. Improvement of functional status was significantly related with incidence of postoperative complication and patient’s age (p=0.009 and p=0.045, respectively). Patient satisfaction with surgery was significantly related with age (p=0.035).