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A 35-year-old member asked:

what is the difference between a swollen knee and arthritis?

3 doctor answers6 doctors weighed in
Dr. Carlos Kier
Rheumatology 51 years experience
See below: Arthritis which implies inflammation of the joint lining is one cause of swollen knee(this includes ra, gout, pseudogout and other inflammatory joint diseases). Osteoarthritis is a common cause of knee swelling without inflammation was well as injuries to the knee cartilage. One can have bleeding into the knee following injuries with resultant swelling.
Dr. Thomas Deberardino
Orthopedic Surgery 32 years experience
Swelling from Arthr.: Arthritis often causes varying degrees of swelling within the knee joint. Recurrent swelling is one of the early signs that leads your physician to suspect a diagnosis of arthritis. Not all swollen knees have arthritis, but most knees with arthritis have periods of obvious swelling.
Dr. Michael Laccheo
Dr. Michael Laccheo answered
Rheumatology 15 years experience
Inflammation: Arthritis literally means "inflammation of the joint" although it is frequently used incorrectly to mean joint pain ("arthralgia"). Swelling in the knee can be caused by many things, not all of them due to inflammation or arthritis.

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Last updated Dec 22, 2013
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