Table 2.
Relationship of Tönnis grade and Outerbridge classification in our cases
| Outerbridge classification | I | II | III | IV | Total | |
|---|---|---|---|---|---|---|
| Tönnis classification | 0 | 5 | 5 | 4 | 1 | 15 (65.2%) |
| I | 1 | 4 | 2 | 7 (30.4%) | ||
| II | 1 | 1 (4.35%) | ||||
| 5 (21.7%) | 6 (26.1%) | 8 (34.8%) | 4 (17.4%) | 23 |
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