Inflammation
- hematoma due to blood vessel disruption
- neutrophils / macrophages / fibroblasts
- remove dead bone
Soft Callus
- collagen formation
- new blood vessels
- osteoblasts and chondroblasts
Hard Callus
- osteoid deposition and mineralisation
- woven bone
Remodelling
Chronic Regional Pain Syndrome
CRPS 1
Sympathetically mediated pain syndrome
- excessive or exaggerated response of extremity to injury, surgery or disease
Manifested by
- intense or unduly prolonged pain
- vasomotor disturbances
- trophic changes
- delayed functional recovery
CRPS 2
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
1% of US population
0.1% of Australia
M:F = 20:1
Groups
- homosexual 80%
- IV User 5%
- heterosexual 8%
- haemophilia 2%
- blood transfusion 1.5 %
Unprotected Sex
Blood
- needle sharing
- blood products
- accidental transmission with infected blood in health care setting