CPT® Code 67450

The procedure described by CPT® Code 67450 refers to an orbitotomy performed through a lateral approach, which involves the creation of a bone flap or window for the purpose of exploration. This surgical intervention is typically indicated when there is a need to investigate abnormalities within the orbit, which is the bony cavity that houses the eye. The lateral approach allows for direct access to the orbit while minimizing trauma to surrounding structures. During the procedure, a lazy-S incision is made in the upper eyelid crease to facilitate access. The lateral rectus muscle, which is one of the extraocular muscles responsible for eye movement, is carefully exposed and retracted to provide a clear view of the underlying tissues. The surgeon then dissects through the soft tissues to expose the zygomatic bone, which is part of the facial skeleton. The periosteum, a dense layer of connective tissue that covers the bone, is incised, and the edges are undermined to reveal the hard cortical bone of the zygoma. To create a bone window or flap, holes are drilled into the bone, which are subsequently connected using an oscillating saw. This technique allows for the removal of a section of bone, providing access to the periorbita, the fibrous tissue surrounding the orbit. Once the periorbita is incised, the surgeon dissects the underlying fat and soft tissue attachments to fully expose the orbit. This exploration allows for the identification of any abnormalities, and if necessary, tissue samples can be obtained for further pathological evaluation. After the exploration and any required biopsies are completed, the orbital tissues are carefully reapproximated, and the periorbita is closed. The zygomatic bone window or flap is then replaced and secured using miniplates and screws, ensuring stability. Finally, the periosteum is closed, followed by layered closure of the soft tissues and skin of the eyelid, completing the procedure.