Diagnosis dependent. Arthroscopy of the knee can take anywhere from 10 minutes to several hours depending upon the diagnosis and planned surgical intervention. A simple meniscal tear debridement can be very rapid, whereas a meniscal repair combined with a ligament reconstruction can take well over an hour. Your surgeon will give you the most accurate timetable specific to your knee and planned surgery.
30-45 minutes. The actual surgery takes 30-45 minutes depending on the procedure, but could take longer for ligament, meniscal or cartilage repair.
Knee arthroscopy . A typical knee scope can be performed in 45 minutes to an hour. Acl surgery and articular cartilage transfers can take up to 2 hours.