How Can You Hide The Stepoffs From A Jumping Genioplasty?
Q: Dr. Eppley, I have another question for you regarding jumping genioplasty. If the midline of the jumped chin segment were cut and a cadaver bone block were placed and the sides of the chin pushed out, would the step offs be hidden as illustrated in the attached images? Also, do the tongue muscles remain attached to the jumped chin segment? Sorry for all the questions, there is very little information about the procedure online.
A:Unfortunately the perception of drawings/diagrams makes certain maneuvers seem feasible…while working inside a narrow space with the proximity of the mental nerve is quite a different reality. If you make a midline cut and place a bone block which pushes the sides of the bone out you are going to make the lateral stepoffs much worse….and there is no way technically to place grafts to camouflage the lateral wing stepoffs.
The geniohyoid muscle remains attached to the bone segment, not the genioglossus muscle in any form of a sliding genioplasty.
Dr. Barry Eppley