Bimalleolar and Trimalleolar Fractures
Bi Malleolar fracture
Definition
Medial Malleolus and Lateral Malleolus fractured
Medial Malleolus and Lateral Malleolus fractured
Isolated medial malleolus fractures 3% of ankle fractures
Type A: Avulsion
Type B: Between tip and plafond
Type C: At level of plafond
Type D: Vertical fracture
Athletes with increase activity / distance
Women with eating disorders / amenorrhea
Compression / inferior neck
- < 50% protective weight bear
- > 50% emergent ORIF
Tension side / superior neck
- emergent ORIF
Types
1. Supracondylar
2. Unicondylar
3. Intracondylar
Supracondylar / Extra-condylar
1. Posterior Arch
Mechanism
- axial compression with hyperextension
Associations
- 50% incidence other C1/2 fracture
- i.e. ondontoid fracture
Management
- stable
- soft / philadelphia collar
2. Isolated lateral mass fracture
Mechanism
- asymmetrical axial compression / lateral bend
1. Neck of 5th Metacarpal
2. Metacarpal Shaft
3. Metacarpal Head
4. Base of Metacarpal Fracture Dislocations
5. Base of Thumb Fractures / Bennett's / Rolanda
Non operative Management
Accept 45o angulation
- will have finger extensor lag, but will recover
First generation (late 70s early 80s)
Results