
) when the affected jo
int is moved or touched, and patients may experience
muscle spasm and contractions
in the tendons.
OA commonly affects the hands, feet, sp
ine, and the large weight bear
ing jo
ints, such as the hips and knees, although
in theory, any jo
int
in the body can be affected. As OA progresses, the affected jo
ints appear larger, are stiff and pa
inful, and usually feel worse, the more they are used throughout the day, thus dist
inguish
ing it from rheumatoid arthritis.