CPT® Code 27403

The procedure described by CPT® Code 27403 refers to an arthrotomy with meniscus repair specifically targeting the knee joint. This surgical intervention is indicated for a torn meniscus, particularly when the tear occurs in the outer vascular region of the meniscus, which is crucial for healing due to its blood supply. The process begins with a skin incision made over the affected knee compartment, allowing access to the joint. Once the joint capsule is incised, the surgeon inspects the knee to identify any signs of disease, injury, or infection. The torn meniscus is located and assessed to determine the extent of the damage. The edges of the tear are meticulously prepared using specialized instruments such as a small rasp or motorized shaver to facilitate proper healing. In cases where blood supply is inadequate, various techniques may be employed to enhance healing, including the placement of a blood clot between the tear edges, creating small vascular access channels around the tear, or abrading the joint lining to promote bleeding. The actual repair of the meniscus is performed using sutures, absorbable tacks, or other internal fixation devices. After the repair, the knee joint is thoroughly flushed with saline solution to eliminate any debris. Finally, the joint capsule is closed, followed by a layered closure of the overlying soft tissue, and a compressive dressing is applied to support the healing process.