What is the difference between a total knee replacement and a unicompartmental knee replacement?

Knee replacements are an increasingly common surgeries, particularly as our population ages. Some people, however, don't need to have the full knee replaced, but only part of it. If the problem affects more than one part of the knee, then a total replacement is needed. The decision as to whether it is a full or partial replacement that is needed depends on the diagnosis, the surgeon and the availability of the equipment necessary.

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