irreducible

Definition

Multi-ligament knee injury (MLKI)

- 2 or more ligaments disrupted

Knee dislocation

- ACL + PCL + one of collaterals 

Mechanism of injury

High energy (MVA)

Low energy (sport)

- low energy has 5% arterial injury

Mechanism

FOOSH

Epidemiology

Age 6 as maximum ligamentous laxity

- < 4 - physeal separation

- > 8 - dislocation

Male > F

Pathoanatomy

Supracondylar region in 6 year old is thin

- thinnest at olecranon fossa (2-3 mm)