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| Name | Acronym |
|---|---|
| NP | Nucleus pulposus |
| AAF | Anterior annulus fibrosus |
| PAF | Posterior annulus fibrosus |
| SS | Sacral slope |
| PT | Pelvic tilt |
| PI | Pelvic incidence |
| LL | Lumbar lordosis |
| TK | Thoracic kyphosis |
| TL | Thoracolumbar alignment |
| CPA | C2 Pelvic angle |
| SVA | Sagittal vertical axis |
| SSA | Spinosacral angle |
| T1S1 | T1 vertebra to Sacrum length |
| L1S1 | L1 vertebra to Sacrum length |
