Patella Fracture
Mechanism
Direct blow
- most common
Indirect
- forced knee flexion with foot fixed / maximally contracted quadriceps
Types
1. Vertical
2. Transverse
Direct blow
- most common
Indirect
- forced knee flexion with foot fixed / maximally contracted quadriceps
1. Vertical
2. Transverse
Intra-articular proximal ulna fracture
Articulates with trochlea
- may have a central bare area
Triceps insertion
- via broad aponeurosis which blends with anconeus and CEO
Undisplaced fracture
- need to ensure triceps mechanism is intact