Our problems and observations in 3D facial implant planning

Gianmarco Saponaro; Chiara Paolantonio; Giorgio Barbera; Enrico Foresta; Giulio Gasparini; Alessandro Moro

doi:10.1186/s40902-022-00362-6

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자료유형: 학술저널

저자정보: Gianmarco Saponaro (Maxillo-Facial Surgery Unit IRCSS Fondazione Policlinico Universitario “A. Gemelli” – Università Ca) Chiara Paolantonio (Maxillo-Facial Surgery Unit IRCSS Fondazione Policlinico Universitario “A. Gemelli” – Università Ca) Giorgio Barbera (Maxillo-Facial Surgery Unit IRCSS Fondazione Policlinico Universitario “A. Gemelli” – Università Ca) Enrico Foresta (Maxillo-Facial Surgery Unit IRCSS Fondazione Policlinico Universitario “A. Gemelli” – Università Ca) Giulio Gasparini (Maxillo-Facial Surgery Unit IRCSS Fondazione Policlinico Universitario “A. Gemelli” – Università Ca) Alessandro Moro (Maxillo-Facial Surgery Unit IRCSS Fondazione Policlinico Universitario “A. Gemelli” – Università Ca)

저널정보: 대한악안면성형재건외과학회 Maxillofacial Plastic Reconstructive Surgery Maxillofacial Plastic Reconstructive Surgery 제44권

발행연도: 2022.1

수록면: 1 - 7 (7page)

DOI: 10.1186/s40902-022-00362-6

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BackgroundThree-dimensional renderings of two-dimensional computed tomography data have allowed for more precise analysis in the craniofacial field. Design, engineering, architecture, and other industries have paved the way for the manipulation and printing of three-dimensional objects.The usual planning is only carried out based on the bony structures, often without taking into consideration the presence of soft tissues and soft structures. During our practice, we have found ourselves facing the challenge posed by these structures; the aim of this article is to discuss our experience in designing implants presenting our tips and tricks for a better planning leading to an easy and reliable positioning.Case presentationWe have retrieved all patients in 5 years among those who underwent computer-aided design/computer-aided manufacturing implant placement in the last 5 years in order to review the eventual problems and the solutions found.A total number of 25 patients were retrieved and, among them, 10 patients were selected, in which planning inaccuracy caused difficulties during implant placement and which then led to induced changes during the planning of similar cases or in which the problems were noted before or during the planning which led to changes in the plan to address those problems.Six of the selected cases were polyetheretherketone facial implants for the correction of residual deformities in malformed or deformed patients.One case was a delayed orbital reconstruction with a titanium implant.Two cases were titanium functional and anatomical reconstruction of the mandible in patients with failed post-oncological reconstructions.There was 1 case with a mandibular ramus complex and hard-to-treat fracture.ConclusionsThe planning of the implant mostly relies on hard tissue three-dimensional reconstruction, but it should not be limited at what is immediately evident. A surgeon’s clinical experience should always guide the process, with knowledge of the patient’s anatomy and evaluation of the quality and of the soft tissue response being taken into consideration. The implant should always be tailored not only based on the bone defect and evaluations but also using the patient’s previewed and actual anatomy, evaluating eventual interferences and pitfalls.

#PEEK CAD-CAM Custom implants Prosthesis 3D reconstruction PEEK implants Reconstruction Patient-specific implants

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