Osteoarthritis Lect

Question 0

Risk factors for OA

Answer 0

• Overweight
• joint injury
• genetic predisposition

Question 1

Joints commonly affected by osteoarthritis

Answer 1

Weight-bearing joints such as hips, knees and spine. Also affects fingers, thumb, neck and large toe.

Question 2

Common features on medical interview n physical examination that would suggest an OA diagnosis

Answer 2

History: pain worse with activity, better with rest, joint gelling - stiffness after rest up to 30 min

Examination: hard n bony swelling, tenderness to palpations, joint effusion, credits, bony enlargements (osteophytes), decreased rom, joint instability, baker’s cyst

Question 3

Appropriate imaging and other investigations in the assessment of patients with OA

Answer 3

X-ray: osteophytes; joint space narrowing; subchondral sclerosis; subchondral cysts

MRI (locking, popping, instability): cartilage damage, joint…??