Osteoarthritis Flashcards
Nodes on the PIP joint
Bouchards Nodes
Nodes on the DIP joint
Heberdens Nodes
Most common site for OA
Big toe –> Bunnion
What are Osteophytes?
Tufts of Bone that grow out from just under the joint.
What is subchondral sclerosis?
Subchondral sclerosis is the bone growth under the cartilage on the joint plane –> pain and Numbness
Where does OA hip pain manifest?
Buttock to groin. No involvment of the lateral compartment of the leg.
OA symptoms
Joint line pain
Crepitus
Limited movement
Occassional swelling
OA definition
Osteoarthritis OA is a degenerative disease of joints, characterized by
•Breakdown of articular cartilage
•and proliferative changes of surrounding bones
•It is a chronic disease of the musculoskeletal system,without systemic involvement “mechanical”.
•OA is mainly a non-inflammatory disease of synovial joints
Epidemiology of OA
Found in 90% of the population to varying degrees.
Its is the most Common joint disease.
OA of the knee can be found in 70% of >60 yrs old
Primary Osteoarthritis?
Unknown aetiology
Age > 40yrs old Sex Female > male 4:1 (except in hip OA M>F) Obesity Genetics trauma (daily)
Secondary Osteoarthritis?
Known Aetiology
- Trauma
- Previous joint disorders;
- Congenital hip dislocation
- Infection: Septic arthritis, Brucella, Tb
- Inflammatory: RA, AS
- Metabolic: Gout
- Hematologic: Hemophilia
- Endocrine: DM
Pathalogical changes during OA
Focal destruction of cartilage (areas of increased load)
•Sclerosis of subchondral bone
•Subchondral cysts
•Marginal osteophytes
Clinical features
Joint line tenderness/pain
Crepitous
Limited movement
occasional effusion
OA at one site is called?
Monoarthritis
OA at 2-4 sites is called?
Oligoarthrisit