Radiographic evaluation scales
| Description | |
|---|---|
| Lenke scale | |
| Grade I | Fused with remodeling and trabeculae |
| Grade II | Graft intact, not fully remodeled and incorporated throughout; no lucencies |
| Grade III | Graft intact but definite lucency at top or bottom of graft |
| Grade IV | Definitely not fused with resorption of bone graft and with collapse |
| Volume scale | |
| Grade I | 0%–25% of available space occupied by bone |
| Grade II | 26%–50% of available space occupied by bone |
| Grade III | >50% of available space occupied by bone |