Congenital
Epidemiology
Usually bilateral / AD
Pathology
Failure of separation of cartilaginous rods that form radius and ulna
Clinically
Forearm in varying degrees of pronation (supination rare)
- may have difficulty with ADL's
Management
Pronation is more useful position than supination
May need supination on one side
- osteotomy radius and ulna
- changes functional position not arc of range
- high risk of comparment syndrome
Acquired
Aetiology
Fractures at same level
Most common proximally
Management
Excision of synostosis and interpose fascia
- poor results