title: [Reconstruction of a malformed external ear by an endoprosthesis of porous polyethylene with an integrated suction system].
abstract: Complete reconstruction of the external ear is one of the most difficult tasks in plastic and reconstructive surgery. The risk of frame protrusion inherent in all alloplastic materials is reduced by using a new premoulded endoprosthesis with an integrated suction system. It consists of tissue-compatible porous polyethylene. A conventional suction drainage can be attached to a hollow canal system within the endoprosthesis that empties from defined spaces corresponding to the natural concavities of the external ear. In combination with a preceding expansion the overlying skin is then adapted evenly and completely to the frame by suction. As a result of this vacuum seromas and haematomas can be prevented. Furthermore, infections and pressure necroses due to matress sutures cannot develop. The use of this endoprosthesis obviates the removal of autogenous cartilage and all the complications and scars that are connected with this procedure. The frame itself is stable and has a relief that is largely similar to the natural form of the auricle. Thus, an aesthetically satisfying result can be achieved also in the hand of the surgeon who is not often engaged in this field of plastic surgery.
authors.affiliation: Klinik und Poliklinik für Hals-Nasen-Ohrenkranke, Ludwig-Maximilians-Universität München, Klinikum Grosshadern.
authors.forename: S
authors.initials: S
authors.lastname: Holtmann
authors.forename: E
authors.initials: E
authors.lastname: Kastenbauer
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D004431:Ear, External / Q000002:abnormalities* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011095:Polyethylenes; D019736:Prostheses and Implants; D011474:Prosthesis Design; D013396:Suction / Q000295:instrumentation*; D015626:Tissue Expansion
chemical_list: D011095:Polyethylenes