Does solid fusion eliminate rod fracture after pedicle subtraction osteotomy in ankylosing spondylitis-related thoracolumbar kyphosis?

Rod fracture (RF) has a negative impact on the surgical outcome of ankylosing spondylitis (AS) patients following lumbar pedicle subtraction osteotomy (PSO). However, there is a paucity of published studies analyzing the risk factors for RF in PSO-treated AS patients with thoracolumbar kyphosis.

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