Measurement of the Metaphyseal-Diaphyseal Angle
diagrams under constructionfor Differentiation between Physiologic Bowing and Tibia Vara
| Age (months) | Metaphyseal-Diaphyseal Angle (degrees) |
| Physiologic bowing | Average (Range) |
| 11-20 | 5.1 + 2.8 (0-11) |
| 21-30 | 3.7 + 3.1 (0-10) |
| Tibia vara | |
| 11-20 | 16.4 + 4.3(8-22) |
| 21-30 | 13.7 + 4.3 (7-22) |
Reference: Keats TE Atlas of Roentgenographic Measurement. Mosby Year Book: St. Louis. 1990. p. 314..