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OR Snapshots – ePTFE Implant Framework in Ear Reconstruction

 

Reconstruction of the lost ear requires a two-layer approach. The base la\yer is the firm and shaped framework which replaces the missing natural cartilage. The choices for the framework are either rib cartilage or synthetic framework.  The second layer is the need for vascularized tissue coverage which, in cases of large amounts of ear loss, would be a temporoparietal fascial flap and a skin graft.

While there are debates about the merits of a cartilage or an implant base layer, the one huge advantage that a synthetic framework has is the avoidance of a donor site. Historically the biomaterial porous polyethylene its what has been used for synthetic ear reconstruction frameworks. It has the advantage of surface porosity and good soft tissue adherence. But it is a difficult material to shape and assemble its preformed pieces. It is also a very stiff and inflexible material of which natural ear cartilage is not.

An innovation in ear reconstruction implants is the combination of 3D design/printing and the use of a softer implant material. In unilateral ear loss or deformities a 3D CT scan can be used to make an exact replica of the opposite normal ear cartilage. Usually this will include the soft tissue earlobe as well as that is difficult to surgically create. From this auto design an implant can be fabricated. This its then made from a newer material, a solid silicone base covered with an ePTFE coating. The silicone provides the shape and flexibility that more closely resembles ear cartilage and the ePTFE coating allows for soft tissue adherence.

An ear framework that is computer generated saves operative time and ensures the best potential ear shape result. It still needs to be covered by a vascularized soft tissue layer. But that need is necessary regardless of the material composition of the ear framework. 

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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