Epidemiology
Uncommon
- dancers
- athletes
Aetiology
Hyperdorsiflexion of the MTPJ
Pathology
MT head dislocates plantar
- may buttonhole through capsule
- can prevent closed reduction
Blocks to Reduction
1. Sesamoids
2. Conjoint tendon
3. Intersesamoid Ligament
Management
Closed Reduction
Open Reduction
Dorsal Approach
- protect dorsal superficial nerve
- divide capsule medial to EHL
- may need to divide intersesamoid ligament
- may need to divide adductor hallucis