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
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
Lower Limb Alignment
Definition
Deformity causing alteration of mechanical axis from knee centre
Aims
1. Normal leg alignment
2. Equal leg lengths