6.1 osteoarthritis Flashcards
1
Q
What is osteoarthritis?
A
Loss/disorder of articular cartilage
2
Q
What are the clinical signs of OA?
A
Pain which is worse with activity and relieved with rest Stiffness after rest Loss of movement Instability, weakness, loss of function Effusion (WBC
3
Q
What are the x-ray signs of OA?
A
Loss of joint space
Osteophytes
Subchondral bone sclerosis
Subchondral bone cysts
4
Q
What is the pathogenesis of OA?
A
Normal cartilage is damaged by physical factors
Cartilage begins to break down become thinner and cracking
Gaps expand until they reach the bone itself
Synovial fluid leaks into the gaps causing damage and cysts
5
Q
What is OA in the PIP and DIP called?
A
PIP : Bouchards
DIP: Heberdens
