Review Article
Pathoanatomic Risk Factors for Instability and Adjacent Segment Disease in Lumbar Spine: How to Use Topping Off?
Table 2
Predisposing pathoanatomic factors for ASD.
| (i) Laminar horizontalization > 130° | (ii) Thoracolumbar fascia insufficiency | (iii) Facet sagittalization 52.7 to 67.1° | (iv) Loss of segmental lordosis |
|
|