Doctors use synovial fluid analysis, or synovial joint analysis, to help diagnose the cause of joint pain and to rule out infection. Common causes of joint pain include rheumatoid arthritis (RA), ...

Orthopedists share their best tips. By Jancee Dunn When I was younger, I used to spring out of bed. Now, it’s more like a slow heave — my knees and hips protesting as I release a middle-aged groan.

Immunostaining depicts collagen-2 (cyan) and nucleus (magenta) at the articulation in the little skate embryo's pelvic joint. Synovial joints are a key feature of most vertebrate skeletons, providing ...

Synovial joints, the lubricated cavity that lets the bones in our shoulders, knees, and elbows slide smoothly against each other, provide freedom of movement to all vertebrates. Scientists have known ...