Arthroscopy (also called arthroscopic surgery) is a minimally invasive surgical procedure in which an examination and sometimes treatment of damage of the interior of a joint is performed using an arthroscope, a type of endoscope that is inserted into the joint through a small incision. Arthroscopic procedures can be performed either to evaluate or to treat many orthopaedic conditions including torn floating cartilage, torn surface cartilage, ACL reconstruction, and trimming damaged cartilage.

The advantage of arthroscopy over traditional, open surgery is that the joint does not have to be opened up fully. Instead, only two small incisions are made - one for the arthroscope and one for the surgical instruments. This reduces recovery time and may increase the rate of surgical success due to less trauma to the connective tissue. It is especially useful for professional athletes, who frequently injure knee joints and require fast healing time. There is also less scarring, because of the smaller incisions.

The surgical instruments used are smaller than traditional instruments. Surgeons view the joint area on a video monitor, and can diagnose and repair torn joint tissue, such as ligaments and menisci.

Arthroscopy is used for joints of the knee, shoulder, elbow, wrist, ankle and hip.

Knee Arthroscopy

Knee arthroscopy has in many cases replaced the classic arthrotomy that was performed in the past. Today knee arthroscopy is commonly performed for treating with damaged meniscus cartilage, reconstruction of the anterior cruciate ligament and for cartilage microfracturing. Arthroscopy can also be performed just for diagnosing and checking of the knee; however, the latter use has been mainly replaced by magnetic resonance imaging.

During an average knee arthroscopy a small fiberoptic camera, the endoscope, is inserted in the joint through a small incision that has an approximate size of 1/8 inch long. A special fluid is used to visualize the joint parts. More incisions might be performed in order to check other parts of the knee. Then other miniature instruments are used and the surgery is performed

Recovery after a knee arthroscopy is a lot faster compared to arthrotomy. Most patients can return home and walk using crutches the same or the next day after the surgery. Usually after a month a patient can fully load his leg and after a few weeks the joint function can fully recover. It is not uncommon for athletes who have a beyond average physical condition to return to normal athletic activities within a few weeks.

However the recovery time also depends on the diagnosis that the arthroscopy was performed for, thus each case is unique and the patient must consult his personal doctor and physician regarding his physiotherapy.

A double-blind placebo-controlled study on arthroscopic surgery for osteoarthritis of the knee was published in the New England Journal of Medicine in July 2002 and concluded that the group that received actual arthroscopy did not report better function or pain than the placebo group."^[7]