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Case Study – Custom Skull Implant in Sagittal Ridge Skull Reshaping

 

Background: The shape of one’s skull is determined by numerous factors. But the most important two are the cranial sutures and the underlying expanding brain. The sutures permit the growing brain to increase in size without constriction by a tight overlying ‘bone box’. These sutures are strategically placed to allow a circumferential expansion of the skull while keeping the different pieces of the skull together.

One of the key and most evident cranial sutures is the one that runs down the midline of the skull and initially connects the front and back soft spots. This long suture allows the skull to grow in width. When the sagittal suture fuses together too soon a well known abnormal skull shape ensues marked by a lack of skull width and a very long skull length. (sagittal craniosynostosis)

There are different degrees or expressions of sagittal craniosynostosis, some of which may escape early surgical intervention or felt not severe enough to justify infantile cranial vault surgery. They present in adulthood with prominent sagittal ridges, narrow bitemporal widths and a triangular shape to the top of their head when viewed from the front. Skull reshaping of these deformities in adults requires a completely different surgical approach than what is used in infants.

Case Study: This 42 year-old male desired to change his skull shape. It had bothered him since his hair had thinned when he was younger and he had managed his head shape concerns by constantly kept his head covered by hats and caps. He had been through several unsuccessful hair restoration treatments including scalp reduction and scalp micropigmentation.

sagittal-ridge-reduction-3d-ct-planning-dr-barry-eppley-indianapoliscustom-skull-implant-design-for-sagittal-ridge-deformity-dr-barry-eppley-indianapolisHis skull reshaping surgery was planned using a 3D CT scan. Some reduction of the most prominent height of the sagittal ridge was imaged and around it a custom skull implant designed to build up the deficient parasagittal and upper occipital skull areas.

skull-reduction-and-implant-surgical-plan-and-incision-dr-barry-eppley-indianapolisskull-implant-and-sagittal-reduction-intraop-dr-barry-eppley-indianapoliosUnder general anesthesia his old midline scalp reduction scar was used for surgical access. The posterior sagittal ridge was burred down and the custom skull implant placed.  Despite the amount of scalp expansion caused by the implant, the incisional closure was not excessively tight.

custom-skull-implant-results-front-view-dr-barry-eppley-indianapolisHis several month postoperative result showed a life changing improvement in the shape of his head. It had a more round shape and the elimination of any sagittal ridging.

Adult skull reshaping of the sagittal ridge deformity always involves some reduction of the height of the ridge. But in more severe cases this alone is inadequate. Building up the skull around it essential and this is most effectively using a 3D design approach to the custom skull implant.

Highlights:

1) The prominent sagittal ridge skull deformity seen in an adult is caused by an untreated infantile sagittal craniosynostosis of varying expressions.

2) Reshaping the adult high sagittal ridge requires a combination of some sagittal ridge reduction and major parasagittal augmentation.

3) A custom skull implant is the most effective method for a major skull reshaping change.

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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