Table 3 Patellar cartilage defects change in each group given as number (%)
|  | ACLR isolated (n = 32) | ACLR combined (n = 25) | Controls (n = 9) | p value |
|---|---|---|---|---|
Baseline defect score | 0.26 | |||
 Grade 0 | 18 (56%) | 15 (60%) | 7 (78%) |  |
 Grade 1 | 12 (38%) | 7 (28%) | 1 (11%) |  |
 Grade 2 | 1 (3%) | 3 (12%) | 0 (0) |  |
 Grade 3 | 1 (3%) | 0 (0) | 0 (0) |  |
 Grade 4 | 0 (0) | 0 (0) | 1 (11%) |  |
Follow-up defect score | 0.42 | |||
 Grade 0 | 25 (78%) | 20 (80%) | 7 (78%) |  |
 Grade 1 | 5 (16%) | 2 (8%) | 1 (11%) |  |
 Grade 2 | 1 (3%) | 3 (12%) | 0 (0) |  |
 Grade 3 | 1 (3%) | 0 (0) | 0 (0) |  |
 Grade 4 | 0 (0) | 0 (0) | 1 (11%) |  |
Defect changes | ||||
 Progression | 1 (3%) | 2 (8%) | 0 (0) | 0.73 |
 Stable | 23 (72%) | 17 (68%) | 9 (100%) | 0.18 |
 Regression | 8 (25%) | 6 (24%) | 0 (0) | 0.29 |