Sequential correction of sagittal vertical alignment and lumbar lordosis in adult flatback deformity

Flatback deformity, or lumbar hypolordosis, can cause sagittal imbalance, causing back pain, fatigue, and functional limitation. Surgical correction through osteotomies and interbody fusion techniques can restore sagittal balance and relieve pain. This study investigated sagittal vertical alignment...

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Bibliographic Details
Published in:North American Spine Society journal (NASSJ) 2024-09, Vol.19, p.100544, Article 100544
Main Authors: MacConnell, Ashley, Krob, Joseph, Muriuki, Muturi G., Havey, Robert M., Matteini, Lauren, Wojewnik, Bartosz, Baksh, Nikolas, Patwardhan, Avinash G.
Format: Article
Language:English
Subjects:
ALIF cages
Basic Science
Deformity
Degenerative
Flatback
Iatrogenic
LLIF cages
Lumbar lordosis
Posterior column osteotomy
Sagittal alignment
SVA
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Summary:Flatback deformity, or lumbar hypolordosis, can cause sagittal imbalance, causing back pain, fatigue, and functional limitation. Surgical correction through osteotomies and interbody fusion techniques can restore sagittal balance and relieve pain. This study investigated sagittal vertical alignment (SVA) and lumbar lordosis correction achieved through sequential procedures on human spine specimens. Human T10-sacrum specimens were stratified into 2 groups: degenerative flatback specimens had smaller L1-S1 lordosis compared to the iatrogenic group (26.1°±15.0° vs. 47.8°±19.3°, p
ISSN:2666-5484
2666-5484
DOI:10.1016/j.xnsj.2024.100544