CPT® Code 29882

A surgical arthroscopy of the knee, identified by CPT® Code 29882, involves a minimally invasive procedure where the knee joint is examined and treated through small incisions. This procedure specifically includes the repair of the meniscus, which is a C-shaped cartilage in the knee that acts as a cushion between the femur (thigh bone) and the tibia (shin bone). The meniscus can sustain tears, particularly in its outer vascular region, where there is sufficient blood supply to facilitate healing. During the arthroscopy, portal incisions are made on both the medial (inner) and lateral (outer) sides of the knee joint to allow access for the arthroscope and other surgical instruments. The arthroscope, a specialized camera, is inserted through one of these portals to visualize the interior of the knee joint. A cannula is then introduced through a second portal to enable the flushing of the joint with saline solution, which helps to clear debris and provides a clearer view of the joint structures. The surgeon examines the knee for any signs of disease, injury, or infection, and locates the meniscus tear. The extent of the tear is assessed using a small hook. Preparation of the tear edges is performed with a rasp or motorized shaver, and the blood supply to the area is evaluated to determine the best approach for repair. Various techniques may be employed to enhance healing, such as placing a blood clot between the tear edges, creating vascular access channels, or abrading the joint lining to stimulate bleeding. The actual repair of the meniscus is accomplished using sutures, absorbable tacks, or other internal fixation devices. After the repair, the knee is flushed again to remove any remaining debris, and the joint is re-inspected. If there are tears in both the medial and lateral menisci, the procedure will address the second tear in a similar manner. Finally, the instruments are removed, the portal incisions are closed, and a compressive dressing is applied to support the knee post-surgery.