tumour prosthesis
Distal Femur Fractures
AO Classification
Types
1. Supracondylar
2. Unicondylar
3. Intracondylar
Xrays
Supracondylar / Extra-condylar
E Reimplantation Femur
Implant Options
1. Long stem cemented revision femoral stem
Modern cementing techniques
- removal of neocortex
Advantage
- use in all cases
- good with elderly fragile bone
- can use Abx cement (decreases infection rate)
Indications
- Paprosky Types I – IV
- very versatile
Technique
- complete removal / debridement of neocortex
Parosteal Osteosarcoma
Epidemiology
Uncommon
- 4% OS
Females more common
- similar to GCT
NHx
Less aggressive locally
- less metastasis
- size / location & duration of symptoms don't correlate with outcome
Arise from cortex of bone / periosteum
- parosteal
- periosteal
- high grade juxtacortical