CPT® Code 29871

A surgical arthroscopy of the knee, designated by CPT® Code 29871, is a minimally invasive procedure aimed at addressing infections within the knee joint, commonly known as septic arthritis, as well as severe cases of arthritis. This procedure involves the use of an arthroscope, a specialized instrument equipped with a camera and light, which allows for direct visualization of the internal structures of the knee. The procedure begins with the creation of small incisions, referred to as portal incisions, on the medial and lateral sides of the knee joint. Through one of these incisions, the arthroscope is introduced, enabling the surgeon to examine the joint for any signs of disease, injury, or infection. A second portal is utilized for the insertion of a cannula, through which a saline solution is introduced to flush the joint. This lavage process helps to cleanse the joint of any infectious material or debris. Additionally, antibiotics or other therapeutic solutions may be instilled into the joint to combat infection. After the joint has been adequately treated, the solutions are drained, and the instruments are removed. The procedure concludes with the closure of the portal incisions, or alternatively, a drain may be placed to facilitate further drainage if necessary. This comprehensive approach ensures effective management of knee joint infections and contributes to the overall recovery of the patient.