deformity

Paget's Disease

Definition

 

Chronic, non metabolic bone disorder

Characterised by increased bone resorption, bone formation and remodelling

 

Epidemiology

 

Rare < 40

1 – 3 % population over 60

M > F

 

Aetiology

 

Unknown

 

Paramyxovirus implicated

- measles

- RSV

- canine distemper virus

 

Electron Microscope

Background

Definition

 

A fixed equinus deformity of the forefoot in relation to the hindfoot 

- resulting in an abnormally high arch that fails to flatten with weight bearing

- deformity may be forefoot, hindfoot or combination

 

Foot CavusFoot Cavovarus

 

Aetiology

 

Background

Deformities

 

Mallet

- DIP flexed

- MTP / PIPJ neutral

 

Hammer 

- PIP flexion

- DIPJ neutral / extended

 

Simple - MTP not involved

Complex - MTP hyper-extended

 

Claw 

- PIPJ and DIPJ flexed

- MTPJ hyperextended

 

Curly toe 

- PIP and DIP flexion