Coronal (CAG) and Sagittal (SAG) Incisions: The Effect of Graft Orientation
Hair can be placed (oriented) in either Sagittal or Coronal incisions. Each orientation has its own advantatages and disadvantages depending on the situation, and can be looked at as different tools in the surgeon’s toolbox. Coronal incisions may increase the illusion of density by lining up hairs in the graft side by side instead of one on top of each other, creating a wall of hair between the scalp and the eye. This effect is particularly strong and useful when used with 3-4 hair grafts in the central area. Sagittal incisions are more precise when mimicking changes in direction and are a powerful tool for recreating cowlicks. The decision of which orientation to use is based on a number of considerations. At SMG, we use both Coronal and Sagittal incisions.
