Where is the lateral orbital osteotomy made during a Lefort III procedure?

In a LeFort III procedure, the lateral orbital osteotomy is typically performed at the frontozygomatic suture. This location is critical because it allows for proper mobilization of the maxillofacial skeleton as part of the surgical correction of craniofacial deformities involving the orbits and midface.

The frontozygomatic suture serves as a pivotal point for the osteotomy, facilitating access to the lateral aspect of the orbits. By making the osteotomy at this junction, surgeons can effectively separate the zygomatic bone from the frontal bone, which is essential in achieving the desired repositioning of facial structures and improving orbital volume and symmetry.

Other locations like the inferior orbital fissure and maxillary sinus roof do not provide the same optimal access and structural support necessary for a successful LeFort III advancement. Similarly, while the zygomatic arch is important in facial anatomy, it does not serve the same critical function in the context of the osteotomy necessary during this specific procedure. Thus, the frontozygomatic suture stands out as the correct and clinically relevant site for performing the lateral orbital osteotomy in a LeFort III operation.