TABLE 3.
Talar OCL Characteristics by Coexistence of Tibial OCLa
| Talar OCL Without Tibial OCL (n = 57) | Talar OCL With Tibial OCL (n = 26) | P | χ2 | |
|---|---|---|---|---|
| Lesion size, mm2 | 79.6 ± 41.6 | 98.1 ± 66.1 | .196 | |
| Location of lesion | .013 | 16.23 | ||
| Zone 1 | 2 (3) | 1 (4) | .939 | 0.006 |
| Zone 2 | 0 (0) | 0 (0) | ≥.999 | 0.000 |
| Zone 3 | 1 (2) | 5 (19) | .004 | 8.132 |
| Zone 4 | 40 (70) | 11 (42) | .016 | 5.853 |
| Zone 5 | 0 (0) | 2 (8) | .034 | 4.493 |
| Zone 6 | 9 (16) | 4 (15) | .963 | 0.002 |
| Zone 7 | 4 (7) | 1 (4) | .573 | 0.317 |
| Zone 8 | 0 (0) | 0 (0) | ≥.999 | 0.000 |
| Zone 9 | 1 (2) | 2 (8) | .179 | 1.807 |
| ICRS grade | .176 | 4.941 | ||
| 1 | 13 (23) | 7 (27) | .684 | 0.165 |
| 2 | 40 (70) | 15 (57) | .265 | 1.245 |
| 3 | 4 (7) | 2 (8) | .912 | 0.012 |
| 4 | 0 (0) | 2 (8) | .034 | 4.493 |
| Uncontained | 49 (86) | 19 (73) | .157 | 2.003 |
aValues are presented as mean ± SD or n (%). Bolded P values indicate statistically significant difference between groups (P < .05). ICRS, International Cartilage Repair Society; OCL, osteochondral lesion.