Deformity Correction
A 55-year-old man with ankylosing spondylitis presents with progressive stooped posture. He cannot stand upright and has difficulty with horizontal gaze. His chin-brow to vertical angle (CBVA) is 70 degrees. Lateral radiographs confirm a rigid thoracolumbar kyphotic deformity with a sagittal vertical axis (SVA) of +18cm. The spine is completely ankylosed. Conservative management has failed. Regarding spinal osteotomy options:
Mark each as TRUE or FALSE
Smith-Petersen osteotomy (SPO/Ponte osteotomy) involves resection of the posterior elements only and...
Pedicle subtraction osteotomy (PSO) is a closing wedge osteotomy through the vertebral body that ach...
SPO is the preferred osteotomy for ankylosed spines because it provides the greatest correction per ...
Vertebral column resection (VCR) involves removal of the entire vertebral body including both pedicl...
The ideal PSO level in ankylosing spondylitis is typically L2-L3 to preserve lumbar lordosis while c...
Answer the questions to see explanations
Click T (True) or F (False) for each option