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A validated score to evaluate spinal instability to assess surgical candidacy in active spinal tuberculosis.
| Age < 15 years | 1 |
| Cervicothoracic/thoracolumbar | 1 |
| Deformity > 30 or DAR > 15 | 2 |
| vertebral body loss–segmental ratio > 0.5 | 2 |
| Spine at risk sign | 3 |
| Total | 9 |
A score of zero or 1 is considered stable; 2 is potentially unstable and requires careful monitoring; and 3 and above is definitely unstable and requires surgical stabilization.
