From: Correlation of tibial tuberosity–trochlear groove distance, anterolateral ligament injury, and the type of trochlear dysplasia with the grade of anterior cruciate ligaments tear
TD type
Degree of ACL tear
p value
Grade I n (%)
Grade II n (%)
Grade III n (%)
Normal (n: 39)
6 (15.4%)
19 (48.7%)
14 (35.9%)
0.110
Type A (n: 10)
5 (50.0%)
3 (30.0%)
2 (20.0%)
Type B (n: 1)
0 (0.0%)
1 (100.0%)