Variable: There is a wide variation in times needed to perform a knee replacement. Sometimes, complexity can also make a replacement take longer. In general, a knee replacement takes anywhere from 45 minutes to 3 hours to perform.
Answered 7/20/2012
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Knee replacement : The length of time depends on the size of the patient, the deformity of the knee, and the expertise of the surgeon. Time can range from 90-180 minutes.
Answered 7/8/2019
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