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- Title
Acute reciprocal changes distant from the site of spinal osteotomies affect global postoperative alignment.
- Authors
Klineberg, Eric; Schwab, Frank; Ames, Christopher; Hostin, Richard; Bess, Shay; Smith, Justin S; Gupta, Munish C; Boachie, Oheneba; Hart, Robert A; Akbarnia, Behrooz A; Burton, Douglas C; Lafage, Virginie
- Abstract
Introduction. Three-column vertebral resections are frequently applied to correct sagittal malalignment; their effects on distant unfused levels need to be understood. Methods. 134 consecutive adult PSO patients were included (29 thoracic, 105 lumbar). Radiographic analysis included pre- and postoperative regional curvatures and pelvic parameters, with paired independent t-tests to evaluate changes. Results. A thoracic osteotomy with limited fusion leads to a correction of the kyphosis and to a spontaneous decrease of the unfused lumbar lordosis (-8°). When the fusion was extended, the lumbar lordosis increased (+8°). A lumbar osteotomy with limited fusion leads to a correction of the lumbar lordosis and to a spontaneous increase of the unfused thoracic kyphosis (+13°). When the fusion was extended, the thoracic kyphosis increased by 6°. Conclusion. Data from this study suggest that lumbar and thoracic resection leads to reciprocal changes in unfused segments and requires consideration beyond focal corrections.
- Publication
Advances in orthopedics, 2011, Vol 2011, p415946
- ISSN
2090-3472
- Publication type
Journal Article
- DOI
10.4061/2011/415946