growth plate

ACL rupture pediatric

1. More common recently

- more high level sport

2. High risk of reinjuring knee from instability

- can suffer permanent severe chondral and meniscal damage

3. Risk of physeal arrest high if bone block across physis

- risk is growth arrest with ACL reconstruction

Hemarthrosis

- 60% children have ACL tear

1. Undulating growth plate / higher rate of growth plate injury

- growth arrest / LLD

- angular deformity

- need to be warned

- require close and careful follow up especially in first 2 years

2. Can be unstable / malunion and shortening very problematic in this area

Salter Harris I