Template:Cervical spine anatomy and biomechanics: Difference between revisions
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(Created page with "{| class="wikitable" ! !C0-1 !C1-2 !C2-7 |- |Anatomy |1. Superior facets of C0 (Atlas): 28° in sagittal and transverse planes 2. No disc |1. C1 has '''convex facet'''...") |
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* '''Extension''': superior vertebral body slides posteriorly, IVD compressed posteriorly. Anterior fibres of AF are stretched. | * '''Extension''': superior vertebral body slides posteriorly, IVD compressed posteriorly. Anterior fibres of AF are stretched. | ||
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Latest revision as of 08:48, 12 June 2022
C0-1 | C1-2 | C2-7 | |
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Anatomy | 1. Superior facets of C0 (Atlas): 28° in sagittal and transverse planes
2. No disc |
1. C1 has convex facet joint surface (allow C1 facet to slide in AP direction over C2)
2. No disc 3. Transverse lig : prevent dense posterior dislocation 4. Alar lig: limiting rotation |
Anatomy structure grossly similar.
1. 2x uncovertebral joints (joints of Luschka) at each segments. They are not true synovial joints (clefts at the lateral edges of IVD between uncinated process inferiorly, and the edge of the vertebral body above) 2. 1 disc between each vertebra body. 3. 2 facet joints: at 45° inclination to horizontal plan (pure rotation, side bending is limited) |
Biomechanics |
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Rotation: 45° both directions.
(Rotation in full flexion is C1-2 rotation) |
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