How long should i expect swelling to last post knee arthroscopy?

Swelling : Swelling after a knee scope can last several days to several weeks. It depends on what was done, the amount if any of swelling prior to surgery and how long the surgery takes. Arthroscopy is done with fluid distention and the fluid is not all removed at the end of surgery. Most of my patients have some swelling for a week or less. If swelling perists then the knee may need to be drained.