growth arrest

Tibial tubercle fractures

Adolescent boys

Proximal tibia / primary ossification centre

Tibial tuberosity / secondary ossification centre

- eventually merges with primary ossification centre

Type I - Tibial tuberosity ossification only

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