Classification criteria for ossification/fusion of the distal radius on MRI images8
| • I: completely unfused |
| • II: early fusion; minimal hyperintensity within physis |
| • III: trabecular fusion of less than 50% of radial cross-sectional area |
| • IV: trabecular fusion of more than 50% of radial cross-sectional area |
| • V: residual physis less than 5 mm on any one section |
| • VI: completely fused |