Grade 4: Pedicle, Partial Body and Disc Resection represents a more extensive spinal osteotomy compared to Grades 1, 2, and 3, involving a wider wedge resection through the vertebral body.
- Anatomical Resection
- Posterior vertebral body
- Sufficient body resection to remove at least a portion of one adjacent disc and an endplate.
- A portion of the vertebral body at the level of the osteotomy remains intact.
- Posterior elements with pedicles
- In the thoracic region, this also involves a rib resection.
- Due to the marked shortening that can occur, anterior support may be necessary in some cases.
- Technical variation
- Scudese and Calabro et al
- technique
- Removal of the superior disc and superior portion of the body
- leading to less aortic or inferior vena cava obstruction secondary to stretching.
- Offers similar destabilisation and correction potential to a pedicle subtraction osteotomy with disc resection.
- Heinig: "eggshell procedure"
- Technique
- Disc removal
- Decancellation of apical pedicles by removing lateral pedicle walls
- Preserving
- Medial pedicle walls
- Posterior wall of the vertebral body
- Decancellation is extended up through the adjacent disc space
- At the end remove the posterior vertebral body wall.
- Close the osteotomy
- Outcomes
- 48.5° sagittal correction
Made with Bullet