| Low-grade ALL n = 48 | High-grade ALL n = 13 | p-value |
---|---|---|---|
Meniscal injury | Â | Â | Â |
 - lateral | 8 (16.7%) | 1 (7.7%) | 0.003 |
 - medial | 8 (16.7%) | 2 (14.4%) |  |
 - combined (medial and lateral) | 1 (2.1%) | 5 (38.5%) |  |
Collateral ligament injury | Â | Â | 0.54 |
 - LCL (grade 1) | 2 (4.2%) | 3 (23.1%) |  |
 - MCL (grade 1) | 4 (8.4%) | 1 (7.7%) |  |