Msk 16

Question 1

In general, what is the inflammatory component of osteoarthritis?

Answer 1

There isnt an inflammatory component.

Question 2

Erosive inflammatory osteoarthritis has more pain and swelling than does ordinary OA. It is the only only type with an inflammatory component. Where is the inflammation localized to?

Answer 2

ONLY the fingers

Question 3

Which joints are affected by OA?

Answer 3

Hips

Knees

AC

1st MTP

1st carpometacarpal

Interphalangeal joints (proximal and distal)

Question 4

Which diagnostic finding from the exam confirms the presence of articular roughening?

Answer 4

Crepitus

Question 5

What is the biggest look-alike to OA?

Answer 5

Fibromyalgia

• needs 11 of 18 specific tenderpoints
• exam should include non-tender control points to eliminate conversion reaction (psychogenic rheumatism)
• linked to disrupted sleep cycle
• smoking population

Question 6

What is the hallmark of Milwaukee shoulder syndrome?

Answer 6

Calcium phosphate crystals

Question 7

Which chondrocyte-released cytokines promote cartilage degradation?

Answer 7

IL-1 and TNF-a

Question 8

What is the clinical presentation of OA?

Answer 8

>50 years old

Buckling knees with descending stairs

Morning stiffness < 30 min

Hip pain radiates to groin

Pain/stiffness with movement relieved with rest

Radiographs

• asymmetric joint space narrowing
• bone demineralization or marginal erosions are NOT PRESENT
• central erosions are not common, but may occur in PIP joints of hands in late state erosive OA

Question 9

Compared to RA, OA does not involve which joints of the hands?

Answer 9

MCP joints

Between carpal bones

Elbows

Shoulders

metatarsalphalangeal joints