Table 1 Demographic characteristics
| Sex (male:female) | 17:19 |
|---|---|
| Age, mean ± SD, year | |
| 10 ≤ age < 20, n = 12 | 16.58 ± 1.68 |
| 20 ≤ age < 30, n = 13 | 23.71 ± 2.78 |
| ≥ 30, n = 11 | 35.10 ± 4.79 |
| Interval from injury to surgery, day | |
| < 90 days, n = 18 | 48.9 ± 21.1 |
| ≥ 90 days, n = 18 | 182.4 ± 91.0 |
| Meniscal injury, case | 18 |
| Chondrl injury, case | 3 |
| Meniscus injury or cartilage degeneration, case | 20 |