Long-segment pedicle screw fixation and individual osteotomy in the treatment of ankylosing spondylitis with kyphosis
Wang Xiao-ping
Lu Ming
Ma Hua-song
Zhou Jian-wei
Yuan Wei
Chen Yang
Niu Jing
Ren Dong-yun
Qin Liu-hua
Zheng Rui
Zhang Jing
Abstract：BACKGROUND:Orthopedic osteotomy at the apex of kyphosis is best for treatment of ankylosing spondylitis from a biomechanical aspect, but there is a high risk for intraoperative spinal cord injury. <br> OBJECTIVE:To explore the clinical efficacy of vertebral plate osteotomy+vertebra osteotomy+long-segment pedicle screw fixation in the treatment of ankylosing spondylitis with kyphotic deformity. <br> METHODS:Thirty-six patients with ankylosing spondylitis were subjected to pedicle subtraction osteotomy and Smith-Peterson osteotomy, and then fol owed up for 3 months to 2 years. <br> RESULTS AND CONCLUSION:After implantation, sagittal imbalance did not occur in 36 patients, and the improvement rate of sagittal imbalance was 64%. The improvement rates of thoracolumbar kyphosis and chin-brow vertical angle were 60%and 98%, respectively. The pain relief rate was 64%, and the Oswestry Disability Index was 95%. There were no pul ed nails, broken nails and broken robs after implantation. These findings indicate that the combination of selective osteotomy technique and long-segment internal fixation can achieve stable fixation effects, prevent sagittal imbalance, and avoid the occurrence of pul ing nails, breaking nails and breaking robs caused by osteoporosis.
Keywords：spondylitisankylosingosteotomyinternal fixatorsspinal fusion
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 8999-9004 )