Spinal Wedge After Spine Osteotomy, Lateral View

Description

Vertebral bodies in lateral profile frame a post-osteotomy defect where a triangular bony wedge has been removed from the spinal column to permit corrective realignment. The wedge gap sits within the osseous and discal stack, with the remaining superior and inferior endplates angling toward one another as they would during closure of a closing-wedge osteotomy. Posteriorly, the spinous processes and laminae align along the dorsal contour, while the vertebral canal forms a continuous posterior boundary that helps orient the relationship between the resected segment and neural elements. Bone margins are sharply defined. Closing-wedge osteotomies are central to deformity surgery for fixed sagittal imbalance, including post-traumatic kyphosis, Scheuermann kyphosis, and rigid deformity in ankylosing spondylitis, where a pedicle subtraction osteotomy or similar technique shortens the posterior column and restores lordosis. A lateral perspective is the working language for sagittal planning, letting you judge angular correction (Cobb-type measurements), local kyphotic angle, and how much posterior translation or canal compromise could occur if closure is excessive. The triangular geometry makes the concept concrete for teaching residents why correction is achieved by bone resection rather than distraction across discs, and it supports discussion of adjacent segment stresses and pseudarthrosis risk when fusion levels are chosen poorly. Use this illustration in spine surgery decks, orthopedic and neurosurgical resident teaching files, and textbook chapters on osteotomy techniques and sagittal balance planning, including preoperative counseling materials that explain why a wedge resection can restore alignment after prior fusion or deformity progression. It also fits operative notes, registry reports, and device education where a neutral, lateral anatomic reference is needed. Anatomical accuracy verified by SciePro's Medical Advisory Board.