Trevor's Disease

 

Dysplasia Epiphysealis Hemimelica

 

So called because affects half of epiphysis

 

Pathology

 

Epiphyseal osteochondroma

- on histology

 

Aetiology

 

Spontaneous mutation

 

Presentation

 

Partial cartilaginous overgrowth of an epiphysis

- usually medial half

- Usually one joint

- Usually ankle (tarsus, carpus, knee, ankle)

 

Treatment

 

Partial excision of overgrowth

- do well but

- Recurrence common

- May need later osteotomies