TABLE 3.
Preoperative Lesion Characteristicsa
| ACI-C (n = 21) | AMIC (n = 20) | |
|---|---|---|
| Location of defects | ||
| Medial femoral condyle | 7 (33.3) | 7 (35.0) |
| Lateral femoral condyle | 2 (9.5) | 1 (5.0) |
| Trochlea | 7 (33.3) | 5 (25.0) |
| Patella | 1 (4.8) | 4 (20.0) |
| Trochlea and patella | 2 (9.5) | 2 (10.0) |
| Trochlea and medial femoral condyle | 2 (9.5) | 1 (5.0) |
| No. of defects | ||
| 1 | 17 (81.0) | 16 (80.0) |
| 2 | 4 (19.0) | 4 (20.0) |
| Total defect size, cm2 | 4.9 ± 4.4 (1.2-21.5) | 5.2 ± 2.4 (2.0-12.3) |
| ICRS grade | ||
| Main defect | ||
| 3 | 16 (76.2) | 17 (85.0) |
| 4 | 5 (23.8) | 3 (15.0) |
| Secondary defect | ||
| 3 | 2 (50.0) | 4 (100) |
| 4 | 2 (50.0) | 0 (0) |
aValues are presented as mean ± SD (range) or n (%). ACI-C, collagen-covered autologous chondrocyte implantation; AMIC, autologous matrix-induced chondrogenesis; ICRS, International Cartilage Repair Society.