Spine
-
A retrospective study of consecutive ankylosing spondylitis (AS) patients with spinal pseudarthrosis. ⋯ SPO at the level of pseudarthrosis was a safe and effective technique to correct sagittal imbalance without vascular complication. Surgical repair of pseudarthrosis with AIF provided successful fusion and good clinical results. For patients with lumbar hypolordosis, additional PSO was effective in restoration of sagittal balance.