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Case Study – Forehead Horn Reduction

 

Background: The shape of the frontal skull bone known as forehead is an important aesthetic facial feature. Since the forehead occupies one-third of the visible face it is not surprising that it has significant aesthetic value even though it seems like it is just a flat a amorphous structure. In reality there are very distinct gender differences in the shape of the forehead as well as having a good proportion in size to the rest of the face.

The forehead can have a variety of aesthetic deformities or disharmonies. One such aesthetic problem is the forehead that is too big or protrusive. This is most manifest as an upper forehead bulge or protrusion. Known as frontal bossing the upper forehead sticks out and can even protrude further out than the eyebrows. This is almost always due to an overgrowth of skull bone.

A unique form of a forehead protrusion is that of the forehead horns. While the term horns usually implies a pathology due to a keratinized growth from the skin, forehead horns in frontal skull surgery refers to an overgrowth of bone. This is not to be confused with an osteoma which would never present in a paired or bilateral presentation and is an outcropping of new bone growth not just part of the normal development of the skull.. These paired upper forehead bony mounds may appear like two very distinct paired protrusion or may also have a ‘dumbbell’ appearance if a ridge of bone connects between the two of them.

Case Study: This 25 year-old male presented with concerns about the appearance of his upper forehead. He had two distinct bony protrusions of his upper forehead that were particularly obvious in certain lighting due to the shadowing that it caused. There was also a small horizontal ridge of bone that connected the two more prominent outcroppings of bone.

forehead-horn-reduction-dr-barry-eppley-indianapolisforehead-reduction-incision-dr-barry-eppley-indianapolisforehead-reduction-surgery-technique-burr-guarding-dr-barry-eppley-indianapolisUnder general anesthesia a 5 cm scalp incision was made about 1.5 cms behind his frontal hairline. With the edges of the hairline protected by sponges and using a guarded rotary instrument and burr, the forehead horns were reduced as well as the connection of bone between them. The incision was closed in two layers with no loss of any external hair shafts.

forehead-horn-reduction-surgery-intraop-results-top-view-dr-barry-eppley-indianapolisforehead-horn-reduction-surgery-intraop-results-side-view-dr-barry-eppley-indianapolisForehead horn reduction is accomplished by removing the outer cortex of the frontal bone. The only preoperative question is what incisional approach is to be used. There are three incision options; 1) a direct approach using a horizontal forehead wrinkle line, 2) a superior pretrichial incision or 3) a more posterior incision back behind the hairline. the first two incision options are the ‘easiest’ since the rotary instrument is on the same linear problem as the bony protrusions. The scalp incision adds a level of difficulty because it is ‘over the top of the hill’ so to speak and one has to change the angle of the drill to reach the bony forehead protrusions. Protection of the hair shaft and follicle also adds a difficult factor as well. But all three incisions can produce equally good forehead horn reduction results.

Highlights:

1) Forehead horns are a pair of congenital upper forehead bony skull protrusions that may or may not be connected.

2) They can be satisfactorily reduced through three different incisional approaches, all work equally well.

3) Bone burring is the corrective technique for forehead horn reduction.

Dr. Barry Eppley

Indianapolis, Indiana


Dr. Barry EppleyDr. Barry Eppley

Dr. Barry Eppley is an extensively trained plastic and cosmetic surgeon with more than 20 years of surgical experience. He is both a licensed physician and dentist as well as double board-certified in both Plastic and Reconstructive Surgery and Oral and Maxillofacial Surgery. This training allows him to perform the most complex surgical procedures from cosmetic changes to the face and body to craniofacial surgery. Dr. Eppley has made extensive contributions to plastic surgery starting with the development of several advanced surgical techniques. He is a revered author, lecturer and educator in the field of plastic and cosmetic surgery.

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