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Managing
Osteoarthritis with the Repicci II Unicondylar Program
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WHAT
IS OSTEOARTHRITIS OF THE KNEE?
The normal knee is a complex joint consisting of bones and soft
tissue structures that are designed to move and endure the forces
of everyday activity. The forces of the knee are centralized in
three areas, or compartments. Two of the compartments are located
at the junction of the tibia and femur, and the third compartment
lies beneath the knee cap (patella). Each compartment absorbs
the stress of activity through cartilage, a rubbery tissue that
protects the bone.
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The three bones of the knee joint are
the femur, tibia and patella.
The areas of the knee that move are protected by cartilage
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Osteoarthritis is a disease of this cartilage.
Knee cartilage can be compared to the tread of an automobile tire,
very durable but susceptible to wear over time. Osteoarthritis
is a degenerative process which results in the wearing out of
the joint surface. Over time the joint surface slowly erodes until
the underlying bone is exposed. This exposed bone can be painful
when the joint moves and bears weight.
Osteoarthritis of the knee often develops
in one weight-bearing compartment of the knee, while the other
two compartments remain relatively healthy. Since Osteoarthritis
is a progressive disease, in the short term it can be managed
conservatively. Anti-inflammatory drugs, cortisone injections,
and physical therapy can delay the need for surgery, but eventually
many people require surgical reconstruction of the knee.
The traditional approach to knee reconstruction
has been a total knee replacement, which replaces all three compartments
of the knee. A total knee provides excellent pain relief and has
been shown to be very durable. For people who need two or more
of their knee compartments resurfaced, total knee replacement
is an excellent choice to relieve pain and restore function of
the knee.
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