CPT® Code 21385

The procedure described by CPT® Code 21385 involves the open treatment of an orbital floor blowout fracture using a transantral approach, specifically the Caldwell-Luc type operation. This surgical intervention is aimed at repairing the orbital floor, which is a critical structure that supports the eye and is often compromised in cases of mid-facial trauma. An orbital floor blowout fracture can lead to significant complications, including entrapment of extraocular muscles, which can impair eye movement, as well as aesthetic deformities of the face. The transantral approach allows the surgeon to access the orbital floor through the mouth, minimizing external scarring while providing direct access to the fracture site. The procedure involves several meticulous steps, including the retraction of the upper lip to expose the gingivobuccal sulcus, making a horizontal incision, and elevating the periosteum to access the maxillary sinus. This approach not only facilitates the repair of the fracture but also ensures that any herniated orbital contents are properly managed, restoring both the anatomical integrity and functional capabilities of the eye. The use of an implant may be necessary if there is a bony deficit, and careful attention is given to hemostasis before closing the incision with sutures, ensuring optimal recovery and outcomes for the patient.