Spinal Deformity
A 65-year-old woman presents with progressive back pain and difficulty standing upright. She bends her knees and hips to maintain balance. Standing full-spine radiographs show: C7 plumb line 8cm anterior to S1, lumbar lordosis 25 degrees, pelvic incidence 55 degrees, and pelvic tilt 32 degrees. Her functional scores are significantly impaired. Regarding adult spinal deformity:
Mark each as TRUE or FALSE
Pelvic incidence (PI) is a fixed anatomical parameter that cannot be changed surgically; lumbar lord...
The SRS-Schwab classification uses three sagittal modifiers: PI-LL mismatch (under 10°, 10-20°, over...
Pelvic incidence can be corrected surgically by lumbar osteotomies; decreased pelvic tilt indicates ...
Compensatory mechanisms for sagittal imbalance include pelvic retroversion (increased pelvic tilt), ...
Osteotomy options include SPO/Ponte (5-10 degrees per level, posterior only), PSO (30-40 degrees, th...
Answer the questions to see explanations
Click T (True) or F (False) for each option