Adult Spinal Deformity
A 68-year-old female presents 18 months after T10-pelvis fusion for adult degenerative scoliosis. She has new onset upper back pain and forward-stooping posture. She cannot stand erect. Standing radiographs show 25° kyphosis centered at T9-10 (proximal junction) with sagittal vertical axis (SVA) increased to 12 cm. The original fusion is solid with no hardware failure. Regarding proximal junctional kyphosis (PJK):
Mark each as TRUE or FALSE
PJK is defined as proximal junctional sagittal angle (angle between lower endplate of uppermost inst...
PJK occurs in 20-40% of adult deformity surgery patients; mechanisms include posterior ligamentous f...
All patients with radiographic PJK require revision surgery; the condition is always progressive; pr...
Prevention strategies include selecting appropriate UIV (not at TL junction, consider ending in uppe...
Revision surgery for symptomatic PJK typically involves proximal extension of fusion with kyphosis c...
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Click T (True) or F (False) for each option