TABLE 2.
Comparison of Traumatic Root Tears That Occurred in Lateral and Medial Meniscal Tearsa
| Lateral Meniscal Root Injury (n = 46) |
Medial Meniscal Root Injury (n = 9) |
P Valueb | |
|---|---|---|---|
| Mechanism of injury | |||
| Noncontact | 38 (82.6) | 1 (11.1) | .001 |
| Contact | 7 (15.2) | 6 (66.7) | |
| High energy | 1 (2.2) | 2 (22.2) | |
| Associated injuries | |||
| None | 1 (2.2) | 3 (33.3) | |
| Anterior cruciate ligament tear | 39 (84.8) | 2 (22.2) | <.001 |
| Multiligament knee injury | 1 (2.2) | 3 (33.3) | |
| Tibial spine | 1 (2.2) | 1 (11.1) | |
| Anterior cruciate ligament graft tear | 4 (8.7) | 0 (0) | |
| Primary chondral injury | |||
| None | 17 (37) | 7 (77.8) | .3895 |
| Lateral femoral condyle | 16 (34.8) | 1 (11.1) | |
| Medial femoral condyle | 10 (21.7) | 1 (11.1) | |
| Lateral tibial plateau | 0 (0) | 0 (0) | |
| Medial tibial plateau | 1 (2.2) | 0 (0) | |
| Patella | 1 (2.2) | 0 (0) | |
| Trochlea | 1 (2.2) | 0 (0) | |
| Multiple chondral injuries | 18 (39.1) | 0 (0) | .0232 |
aResults are reported as n (%). The 3 patients with bicondylar root tears are excluded from this analysis.
bStatistical significance of comparison between the groups was noted when P < .05 (boldface).