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Relationship of convergence or lack of convergence between osteochondritis dissecans (OCD) site and mechanical axis with the stability of the osteochondral fragment and average age. In 94% of grade II to IV cases, the location of the OCD lesion converged with the mechanical axis. These findings show a statistically significant difference (p < 0.01).
| Convergence + | Convergence - | Mean age (yrs) | |
|---|---|---|---|
| GRADE I-II | 19 | 17 | 11.6 |
| GRADE III-IV | 16 | 1 | 18.4 |
