EROSIVE OA Flashcards
1
Q
What is erosive OA ?
A
This is an inflammatory type of primary OA.
2
Q
What gender does erosive OA usually affect ?
A
Females post menopausal.
3
Q
What does erosive OA look like radiographically ?
A
-Joint space narrowing.
-Subchondral erosions “gull wing appearance”
- Joint ankylosis.
- No marginal erosions, soft tissue swelling or osteopenia.
4
Q
What is the distribution of erosive OA ?
A
This is the same as primary osteoarthritis - Distal interphalangeal joints, Proximal interphalangeal joints and base of the thumb.
It is bilateral and symmetrical.
5
Q
What is the one body part erosive OA exclusively occurs ?
A
The hands
6
Q
What are differentials for Erosive OA ?
A
OA and RA.
