CPT® Code 27470

The procedure described by CPT® Code 27470 pertains to the surgical repair of a nonunion or malunion of the femur, specifically located distal to the head and neck of the femur, and is performed without the use of a graft. A nonunion occurs when the fracture fragments fail to heal together after an adequate period, while a malunion refers to a situation where the fragments heal in an incorrect position, leading to potential complications such as osseous abnormalities, incongruity of articular surfaces, soft tissue contracture, and nerve impingement. During the procedure, the original fracture site is surgically exposed to assess the condition of the nonunion or malunion. The surgeon evaluates the fracture to determine the appropriate method of repair. In this case, the repair is executed using internal fixation techniques, such as a compression plate, which is applied directly over the fracture site. For nonunions, the compression plate is secured with lag screws to stabilize the fracture. In cases of malunion, the femur may be refractured to realign the bone fragments properly, followed by the application of internal fixation to maintain anatomical alignment. After the fixation device is placed, the surgeon checks the stability of the fracture and verifies the alignment through radiographic imaging, ensuring that the repair is successful and that the bone is positioned correctly for optimal healing.