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Case Study – Custom Forehead-Temporal Implant Replacement

 

Background: The size of the forehead has a major influence on the appearance of one’s face, occupying the entire upper third of it. Beyond its size the shape of the forehead is also important with many gender specific features. In general, males have stronger brows, a wider forehead and a gentle backward slope to it. In contrast female have no brow bone protrusion, a convex forehead shape that has a more vertical orientation.

\Of all the facial bones, the forehead is the least commonly augmented. Intraoperatively shaped bone cements and preoperatively shaped custom implants are the two most common methods of forehead augmentation. Given the advantages of a more thought out forehead shape design and the ability to place it through a small scalp incision, custom forehead implants are usually the superior treatment approach.

But the success of a custom forehead implants comes down to its design. While computer designing an implant has many advantages, what the best shape and dimensions are that can create the patient’s desired forehead shape  is not a mathematical calculation. It is an art form that is based on the surgeon’s understanding of the patient’s desires and experience in appreciating the effects of various designs on the outward aesthetic outcome.

Case Study: This 25 year-old male had a custom PMMA forehead implant placed through a full coronal scalp incision six months previously. While the implant provided some brow bone augmentative effect, it did not extend all the way top the forehead and created a line of demarcation at the mid-forehead level. He was interested in having an implant design that covered his entire forehead as well as extended outward further into the temporal areas.

A new custom forehead-temporal implant design was made that covered more than 100% greater surface area than his indwelling implant. It covered the entire forehead back behind the frontal hairline, extended over the entire anterior temporal region down to the zygomatic arches as well as added a few more millimeters of brow bone augmentation.

Under general anesthesia, his existing coronal incision was re-opened and his forehead implant exposed and removed. The difference in surface area coverage between the removed and new custom forehead-temporal implant was significant.

The new style of custom forehead implant was then inserted and secured with small microscrews to the bone and sutures of the temporal extensions to the temporal fascia.

When designing a forehead implant there are four surface areas or zones to consider. They are the brow bones, the mid- and upper forehead, the temporal lines and the temporal zones. (often referred to as the sides of the forehead) The coverage or lack oil coverage of these areas must first be considered before determining what thicknesses they should be.

Highlights:

  1. Subtotal forehead implants often leave the forehead inadequately augmented.
  2. Custom forehead implants must consider the impact on the entire forehead as well as the adding temporal regions.
  3. Complete frontal augmentation covers the entire forehead as well as the temporal areas.

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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