Lumbar transpedicular osteotomy combined with fixation of pedicle screw system for correction of kyphosis in ankylosing spondylitis / 中国矫形外科杂志

ABSTRACT

[Objective]To retrospectively analyze efficacy and complications of lumbar transpedicular osteotomy combination pedicle screw system for correction of kyphosis in ankylosing spondylitis. [Method]From Jan 1998 to Dec 2007,54 patients of ankylosing spondylitis with kyphotic deformity were treated with surgery.Forty eight patients were followed up,and time was 6 to 36 months.Preoperative and postoperative Chin-brow vertical angle and Cobb's angle were measured.The outcome was evaluated according to pose correction,visual field improvement and back pain relief in follow-up.The results were divided into being excellent,good,fair and poor.[Result]The mean Chin-brow vertical angle was corrected from preoperative 59? to postoperative 16?,and the Cobb's angle from 43? to 11?.All patients could walk with forward vision and sagittal balance and gait were improved significantly.The symptom of dyspepsia and respiratory limitation relieved.The excellent outcome was attained in 45 cases(93.75%),the good in 3 cases(6.25%).[Conclusion]Lumbar transpedicular osteotomy combined with fixation of pedicle screw system was a safe and effective method for treatment of kyphosis in ankylosing spondylitis.