Changes in sagittal spinopelvic parameters following S2-alar-iliac screw fixation in adult degenerative scoliosis: A one-year radiographic analysis of 80 patients
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Background: S2-alar-iliac (S2AI) screws are widely used for spinopelvic fixation due to their biomechanical advantages. Although pelvic incidence (PI) is traditionally considered fixed after skeletal maturity, emerging evidence s... ...
