ankle arthritis Flashcards
1
Q
what are the generations of total ankle replacements?
A
1st - cemented with constrained/ semi-constrained prothesis
2nd - press-fit with poly bearing incorporated
3rd - mobile bearing
4th - fixed bearing - infinity
2
Q
What did the tarva trial show?
A
total ankle replacement vs ankle fusion
- manchester-oxford foot questionaire
- 50-85yrs old
- 1 yr follow up
- both similar improve function
- TAR - risk of wound problems and nerve injury
- Fusion - DVT and non-union (7%) risk
- limitation - heterogenicity of implants and surgical techniques
3
Q
Njr data for infinity
A
7 yrs 4% revision rate
All ankle replacements:
- 10-14% revision - under 65s at 10yrs
- 3% over 75yrs
