CPT® Code 20920

The procedure described by CPT® Code 20920 involves the harvesting of a fascia lata graft, which is a specialized type of tissue taken from the deep fascia of the thigh. The fascia lata is known for its strength and is often utilized in various reconstructive surgical procedures. In this specific technique, a device known as a stripper is employed to facilitate the separation of the fascia from the underlying muscle tissue. The process begins with the creation of a horizontal incision, typically located above the knee, along the iliotibial tract, which is a band of connective tissue that runs along the outer thigh. This incision allows access to the fascial layer beneath the skin. To initiate the harvesting, a small incision is made in the fascia itself, and a silk suture is placed at the proximal edge of this incision. This suture serves a crucial role in assisting the physician to thread the fascia strip through the stripper device. Once the stripper is engaged, it is pushed along the fascia in a superior direction while tension is applied to the silk suture, effectively pulling the fascia through the stripper. The physician continues this process until a strip of fascia of the desired length is obtained. At this point, the stripper is triggered to cut the strip proximally, allowing for the collection of multiple strips if necessary. This method is particularly advantageous for obtaining grafts that are needed for subsequent surgical reconstruction, ensuring that the harvested tissue is both adequate in size and quality for the intended use.