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Comparison of important anatomic measurements of the proximal humerus in adolescents versus adults
| Parameter; mean | Adolescents | Adults |
|---|---|---|
| Articular surface diameter, mm | 41.3 | 47.3 |
| Articular surface thickness, mm | 17.4 | 17.9 |
| Neck–shaft angle, ° | 36.2 | 41.8 |
| Medial offset, mm | 6.4 | 8.3 |
| Physeal diameter, mm | 40.8 | — |
| Physeal–shaft angle, ° | 2.3 | — |
