CPT® Code 29867

The procedure described by CPT® Code 29867 refers to an arthroscopic surgical technique performed on the knee, specifically involving the use of osteochondral allografts, commonly known as mosaicplasty. This surgical intervention is aimed at addressing chondral and osteochondral defects that occur on the weight-bearing surfaces of the knee joint. During the procedure, small cylindrical grafts, which consist of both cartilage and underlying bone, are utilized to effectively smooth and resurface the damaged articular cartilage. Initially, the knee joint is inspected through an arthroscope, a specialized instrument that allows for a clear view of the internal structures of the knee. This inspection is crucial for identifying the specific areas of cartilage damage. Once the damaged regions are located, the extent of the injury is measured, and the number of grafts needed for repair is determined. In the context of this procedure, osteochondral allografts are sourced from a bone bank, which provides grafts that are compatible for transplantation. The damaged area of the knee is meticulously debrided, meaning that any unhealthy or damaged tissue is removed to prepare the site for the implantation of the allografts. The allografts are then shaped and fitted to precisely match the defect in the articular surface. Following the placement of one or more allografts into the defect, they are stabilized to ensure proper integration and function. After the procedure, the range of motion of the knee is assessed to confirm that the allografts are securely positioned and stable. Finally, the arthroscope and any surgical instruments used during the procedure are removed, and the incisions made for the portals are closed, completing the surgical process.