From: Clinical examination of the knee: know your tools for diagnosis of knee injuries
| Injury Pattern | Injured Structure | Tests |
|---|---|---|
| Anteromedial Instability | ACL + MCL + MM | valgus stress, anterior drawer, Lachman |
| Anterolateral Instability | ACL + LC + LM | valgus stress, anterior drawer, Lachman, pivot shift |
| Posterolateral Instability | PLC | external rotation, dial, recurvatum, posterolateral drawer |
| Posteromedial Instability | MCL + ACL + PMC | valgus stress, posterior drawer, Lachman |
| Anteromedial + Anterolateral Instability | ACL + MCL + lateral capsule (PCL intact) | anterior drawer, Lachman, pivot shift, valgus stress |
| Posteromedial + Posterolateral Instability | ACL + MCL +PLC (PCL intact) | anterior drawer, Lachman, pivot shift, valgus stress, varus stress |