tension band wire

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

Mechanism

Direct blow

- most common

Indirect

- forced knee flexion with foot fixed / maximally contracted quadriceps

Types

1.  Vertical

2.  Transverse

Definition

Intra-articular proximal ulna fracture

Anatomy

Articulates with trochlea

- may have a central bare area

Triceps insertion

- via broad aponeurosis which blends with anconeus and CEO

Management

Non operative Management

Undisplaced fracture

- need to ensure triceps mechanism is intact