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Osteoarthritis of the fingers is a
common condition. It occurs because the cartilage surrounding the
joints of the fingers begin to wear out. This places undue stress on
the joints. Bony growths, known as osteophytes, may develop at the
joints. The joints then become painful and tender.
The joints closest to the finger nails
are called distal interphalangeal joints (DIP). The middle finger
joints are known as proximal interphalangeal joints (PIP).
Osteoarthritis in the PIP joints usually means that it will also
occur in the DIP joints. It tends to affect both hands will equal
intensity. However, the joints at the knuckles are not usually
affected by osteoarthritis.
A more aggressive form of the disease
is known as erosive osteoarthritis. With this condition the joints of
the fingers become more inflamed and there is more swelling and
resultant pain.
The joints of the finger are hinge
joints. They are used extensively. With use the cartilage of the DIP
and PIP finger joints can begin to wear away. Thus the ends of the
bone become exposed. The unprotected joints surfaces are now able to
rub against each other, causing the pain of osteoarthritis.
Unfortunately, the damaged cartilage does not repair itself over
time.
Osteoarthritis of the DIP joints may be
accompanied by the growth of knobs on the side of the joint, known as
Heberden’s nodes. These occur more frequently in women than in men.
Similar nodes on the PIP joints are known as Bouchard’s nodes.
Osteoarthritis of the DIP joints may also be accompanied by mucus
cysts around the fingernails.
Rest, anti-inflammatory medication and
physical therapy are the most common treatments to effect
minimization of pain and the limitation of loss of hand motion. When
the joints become unstable, surgery may be an option. Over the
counter medications, such as non-steroidal anti-inflammatory drugs,
are the usual pain relief medications used for finger osteoarthritis.
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