Ossification
3 - 5 years old
Management
Undisplaced
- manage in plaster in extension
Displaced > 3 mm
- ORIF
Patella sleeve fracture
- usually small inferior fragment seen on xray
- patella high riding on xray / alta
- is actually large cartilaginous fragment avulsed with retinaculum
- can be osteochondral
- patient unable to SLR
- confirm on MRI
- requires ORIF