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Tolerance Limits for Radiographic Evaluations
| Evaluation | Tolerance Limit | |
|---|---|---|
| Cobb angle | 0-5 degrees | |
| Risser grade | Within range of 0, 1, 2, or 3, 4, 5 | |
| Rotation (Nash Moe) | Within range of 0, 1, 2, or 3, 4 | |
| Kyphosis | Normal | 10-40 degrees |
| Hypokyphotic | <10 degrees | |
| Hyperkyphotic | >40 degrees | |
| Lordosis | Normal | 40-60 degrees |
| Hypokyphotic | <40 degrees | |
| Hyperkyphotic | >60 degrees | |
| Digital Maturity Stage | Agree on stages 2 and 3; in cases other than the endpoint | |
