This article is from the Plastic and Reconstructive Surgery FAQ, by mooncrow@lava.net (Robert Green) with numerous contributions by others.
On an average, most surgeries take 2-3 hours in the operating
room, with the most extensive of multiple procedures lasting
several hours. Additional time is often required for preparation
before, and rest & recovery time after the surgery itself,
particularly when sedation or a general anesthetic is
administered.
 
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