Common Characteristics of Osteoarthritis
Osteoarthritis, also known as degenerative joint disease, is one of the most common ailments associated with
getting older, and it is therefore most common in those parts of the world where people live the longest. More
than 15 million Americans receive medical attention for osteoarthritis each year, and more than twice that many
are affected by it to some degree. However, it rarely results in serious disability.
Osteoarthritis is essentially a "wear-and-tear" disorder. In typical cases, symptoms appear after the age of 50,
and usually in the large joints that bear the most weight--the hips, knees, shoulders and spine.
Pain and stiffness are at their most uncomfortable upon arising in the morning and are likely to be intensified
during damp, cold weather. (This does not mean, however, that symptoms are likely to disappear in a warm, dry climate.)
Redness and swelling of the affected joints may also occur. Joints, particularly in the fingers, may become permanently
gnarled by osteoarthritis, but this almost never interferes with their function. Painless bony bumps, known as
Heberden's nodes, may also appear symmetrically on the fingers of both hands or on toe joints as well.
Causes of Osteoarthritis
When a person is young and spry, the joints between the bones swing freely like efficient, well-oiled hinges.
Stresses and strains are absorbed by the cartilage pads that provide cushioning and lubrication at the ends of the
bones where they constantly come together as the parts of the body make their coordinated movements.
Over the years, these protective layers become eroded, lubricating fluids diminish and the result is a sensation often
described as "creaking" at the joints. In addition to a decrease in smoothness of function, small growths, or spurs, may
develop on the bones in the area of the joints. These are 10 times more prevalent among women than among men and are
likely to aggravate an already uncomfortable condition.
