CPT® Code 27132

The procedure described by CPT® Code 27132 involves the conversion of a previously performed hip surgery to a total hip arthroplasty. This surgical intervention is necessary when a patient has undergone prior hip surgery, which may have involved the placement of hardware such as pins or screws, and is now experiencing complications or deterioration that necessitate a complete hip replacement. The conversion process entails several critical steps, including the removal of existing hardware, correction of any bony abnormalities, and the implantation of total hip components. Additionally, bone grafting may be required to ensure proper structural support and stability of the hip joint. The procedure begins with an incision along the lateral aspect of the hip, following the line of the previous surgical incision, allowing access to the underlying tissues. Surgeons may need to perform extensive soft tissue releases to address any scar tissue that has formed, which can impede the surgical process. This may involve partial releases of the psoas tendon, gluteus maximus insertion, and the head of the rectus femoris. Once the hip is dislocated, the femoral head is exposed, and the existing hardware is removed. The acetabulum, or hip socket, is then prepared by removing damaged cartilage and bone, and evaluated for any bone loss that may require the use of bone grafts. The procedure culminates in the secure placement of a prosthetic cup and stem, ensuring that the new hip joint functions effectively and maintains stability throughout its range of motion.