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Although the inside of nearly all joints can be viewed with an arthroscope, six joints are most frequently examined with this instrument. These include the knee, shoulder, elbow, ankle, hip, and wrist. As advances are made by engineers in electronic technology and new techniques are developed by orthopaedic surgeons, other joints may be treated more frequently in the future.

How is arthroscopy performed?

Arthroscopic surgery, although much easier in terms of recovery than "open" surgery, still requires the use of anesthetics and the special equipment in a hospital operating room or outpatient surgical suite. You will be given a general, spinal or a local anesthetic, depending on the joint or suspected problem.

A small incision (about the size of a buttonhole) will be made to insert the arthroscope. Several other incisions may be made to see other parts of the joint or insert other instruments. When indicated, corrective surgery is performed with specially-designed instruments that are inserted into the joint through accessory incisions.

Initially, arthroscopy was simply a diagnostic tool for planning standard open surgery. With development of better instrumentation and surgical techniques, many conditions can be treated arthroscopically. For instance, most meniscal tears in the knee can be treated successfully with arthroscopic surgery. Some problems associated with arthritis also can be treated. Several disorders are treated with a combination of arthroscopic and standard surgery.

•Rotator cuff procedure •Repair or resection of torn cartilage (meniscus) from knee or shoulder •Reconstruction of anterior cruciate ligament in knee •Removal of inflamed lining (synovium) in knee, shoulder, elbow, wrist, ankle •Release of carpal tunnel •Repair of torn ligaments •Removal of loose bone or cartilage in knee, shoulder, elbow, ankle, wrist.

After arthroscopic surgery, the small incisions will be covered with a dressing. You will be moved from the operating room to a recovery room. Many patients need little or no pain medications.

Before being discharged, you will be given instructions about care for your incisions, what activities you should avoid, and which exercises you should do to aid your recovery. During the follow-up visit, the surgeon will inspect your incisions; remove sutures, if present; and discuss your rehabilitation program.

The amount of surgery required and recovery time will depend on the complexity of your problem. Occasionally, during arthroscopy, the surgeon may discover that the injury or disease cannot be treated adequately with arthroscopy alone. The extensive "open" surgery may be performed while you are still anesthetized, or at a later date after you have discussed the findings with your surgeon.

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