title: Combined bone and soft-tissue augmentation surgery in temporo-orbital contour reconstruction.
abstract: Temporal hollowing due to temporal muscle atrophy after standard skull base surgery is common. Various techniques have been previously described to correct the disfiguring defect. Most often reconstruction is performed using freehand molded polymethylmethacrylate cement. This method and material are insufficient in terms of aesthetic results and implant characteristics. We herein propose reconstruction of such defects with a polyetheretherketone (PEEK)-based patient-specific implant (PSI) including soft-tissue augmentation to preserve normal facial topography. We describe a patient who presented with a large temporo-orbital hemangioma that had been repaired with polymethylmethacrylate 25 years earlier. Because of a toxic skin atrophy fistula, followed by infection and meningitis, this initial implant had to be removed. The large, disfiguring temporo-orbital defect was reconstructed with a PEEK-based PSI. The lateral orbital wall and the temporal muscle atrophy were augmented with computer-aided design and surface modeling techniques. The operative procedure to implant and adopt the reconstructed PEEK-based PSI was simple, and an excellent cosmetic outcome was achieved. The postoperative clinical course was uneventful over a 5-year follow-up period. Polyetheretherketone-based combined bony and soft contour remodeling is a feasible and effective method for cranioplasty including combined bone and soft-tissue reconstruction of temporo-orbital defects. Manual reconstruction of this cosmetically delicate area carries an exceptional risk of disfiguring results. Augmentation surgery in this anatomic location needs accurate PSIs to achieve satisfactory cosmetic results. The cosmetic outcome achieved in this case is superior compared with previously reported techniques.
authors.affiliation: Department of Neurosurgery, Kantonsspital Aarau, Aarau, Switzerland. serge.marbacher@ksa.ch
authors.forename: Serge
authors.initials: S
authors.lastname: Marbacher
authors.forename: Lukas
authors.initials: L
authors.lastname: Andereggen
authors.forename: Javier
authors.initials: J
authors.lastname: Fandino
authors.forename: Anton
authors.initials: A
authors.lastname: Lukes
mesh_terms: D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D001577:Benzophenones; D001672:Biocompatible Materials; D001843:Bone Cements; D004954:Esthetics; D005260:Female; D006801:Humans; D007659:Ketones; D007710:Klebsiella Infections / Q000175:diagnosis / Q000188:drug therapy / Q000601:surgery*; D009133:Muscular Atrophy / Q000601:surgery*; D009915:Orbit / Q000601:surgery*; D011092:Polyethylene Glycols; D011108:Polymers; D019736:Prostheses and Implants; D019651:Plastic Surgery Procedures / Q000379:methods*; D018461:Soft Tissue Infections / Q000175:diagnosis / Q000188:drug therapy / Q000601:surgery*; D013524:Surgical Flaps; D013703:Temporal Muscle / Q000601:surgery*; D014057:Tomography, X-Ray Computed
chemical_list: D000900:Anti-Bacterial Agents; D001577:Benzophenones; D001672:Biocompatible Materials; D001843:Bone Cements; D007659:Ketones; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols