| Objective:Comparison with ankylosing spondylitis following L2above the apical vertebra and L2apical vertebra (lumbar spine) pedicle single segmental osteotomy the clinical efficacy of pedicle screw fixation for orthopedics explore ankylosing spondylitis osteotomy segments and cross-sectionalbone surgical procedures the best choice.Methods:Will meet the diagnostic criteria,75patients were randomly divided into the apical vertebral osteotomy group, non-apical vertebral osteotomy group and vertebral osteotomy group. Apical vertebral osteotomy group of30cases,35cases of non-apical vertebral osteotomy group,10cases of pairs of vertebral osteotomy group. Three groups of patients passing through the pedicle vertebral osteotomy plus pedicle screw fixation for orthopedics. Thoracolumbar Cobb’S angle to compare before and after surgery, the change in the jaw, brow vertical angle and incidence of complications.Results:(1) non-apical vertebra group, apical vertebral group and vertebral osteotomy group thoracolumbar Cobb’S angle of jaw, brow vertical angle there was a significant difference (P<0.001). Any two pairs of vertebral osteotomy group the degree of correction. Correction (in degrees) of the apical vertebra group than non-vertebral top group (P<0.01).(2) the operative time, intraoperative blood loss and postoperative ambulation time aspects of the apical vertebra and non-apical vertebral group was statistically significant (P>0.05); with dual vertebral group was statistically significant (P<0.05).(3) intraoperative, postoperative complications, three groups of no statistical significance (P>0.05).Conclusion:Apical vertebral and non-apical vertebral single segment transpedicular vertebral wedge osteotomy can obtain better clinical efficacy. However, with the top vertebra of single segment transpedicular vertebral wedge osteotomy correction angle, the effect is better. Apical vertebra group and postoperative indicators in the group of patients in the non-apical vertebra was no significant difference with dual vertebral group was statistically significant. Postoperative complications was not significant. Recommended that clinicians have extensive surgical experience preferred apical vertebral osteotomy. Pairs of vertebral osteotomy better for patients with severe kyphosis. |