S Järvinen1, J Suojanen2, E Kormi3, T Wilkman1, A Kiukkonen4, J Leikola5, P Stoor6. 1. Department of Oral and Maxillo-Facial Diseases at the University of Helsinki, Helsinki University Hospital, Haartmaninkatu 4E, 00029, HUS, Helsinki, Finland. 2. Cleft Palate and Craniofacial Centre, Department of Plastic Surgery, Helsinki University Hospital, Topeliuksenkatu 5 (P.O. Box 266), 00029, HUS, Helsinki, Finland; Päijät-Häme Joint Authority for Health and Wellbeing, Department of Oral and Maxillo-Facial Surgery, Finland. 3. Päijät-Häme Joint Authority for Health and Wellbeing, Department of Oral and Maxillo-Facial Surgery, Finland. 4. Department of Oral and Maxillo-Facial Diseases at the University of Helsinki, Helsinki University Hospital, Haartmaninkatu 4E, 00029, HUS, Helsinki, Finland; Cleft Palate and Craniofacial Centre, Department of Plastic Surgery, Helsinki University Hospital, Topeliuksenkatu 5 (P.O. Box 266), 00029, HUS, Helsinki, Finland. 5. Cleft Palate and Craniofacial Centre, Department of Plastic Surgery, Helsinki University Hospital, Topeliuksenkatu 5 (P.O. Box 266), 00029, HUS, Helsinki, Finland. 6. Department of Oral and Maxillo-Facial Diseases at the University of Helsinki, Helsinki University Hospital, Haartmaninkatu 4E, 00029, HUS, Helsinki, Finland. Electronic address: patricia.stoor@hotmail.com.
Abstract
PURPOSE: The aim of this study was to evaluate polyetheretherketone (PEEK) as a patient-specific implant (PSI) material in maxillofacial reconstructive surgery. MATERIALS AND METHODS: The retrospective study included a cohort of 24 patients who underwent maxillofacial surgery using PEEK PSIs. Each patient underwent preoperative multislice computed tomography (CT) with 0° tilt of gantry. Based on the CT scan, the PEEK PSIs were planned and manufactured using three-dimensional (3D) modeling and computer-aided design/computer-aided manufacturing (CAD/CAM) techniques. All procedures were performed under general anesthesia. Implants were placed intraorally, extraorally or through subciliary, transconjuctival or coronal incisions. RESULTS: In 22 of 24 cases, the PEEK PSI fit well without adjustments. Although the fit to the surrounding bone was perfect in almost all of the cases, the outer contour of the PSI was modified in nine cases before fixation. However, intraoperative implant modification did not affect the infection rate. In two cases, postoperative wound dehiscence and infection needed additional treatment and healed without removal of the implants. CONCLUSION: The follow-up data in this study showed good outcomes with reliable results for PSI made of PEEK in the maxillofacial region.
PURPOSE: The aim of this study was to evaluate polyetheretherketone (PEEK) as a patient-specific implant (PSI) material in maxillofacial reconstructive surgery. MATERIALS AND METHODS: The retrospective study included a cohort of 24 patients who underwent maxillofacial surgery using PEEK PSIs. Each patient underwent preoperative multislice computed tomography (CT) with 0° tilt of gantry. Based on the CT scan, the PEEK PSIs were planned and manufactured using three-dimensional (3D) modeling and computer-aided design/computer-aided manufacturing (CAD/CAM) techniques. All procedures were performed under general anesthesia. Implants were placed intraorally, extraorally or through subciliary, transconjuctival or coronal incisions. RESULTS: In 22 of 24 cases, the PEEK PSI fit well without adjustments. Although the fit to the surrounding bone was perfect in almost all of the cases, the outer contour of the PSI was modified in nine cases before fixation. However, intraoperative implant modification did not affect the infection rate. In two cases, postoperative wound dehiscence and infection needed additional treatment and healed without removal of the implants. CONCLUSION: The follow-up data in this study showed good outcomes with reliable results for PSI made of PEEK in the maxillofacial region.
Authors: G Saponaro; P Doneddu; G Gasparini; Edoardo Staderini; R Boniello; M Todaro; G D'Amato; S Pelo; A Moro Journal: Childs Nerv Syst Date: 2019-07-31 Impact factor: 1.475
Authors: Tarek Ismail; Alexander Haumer; Alexander Lunger; Rik Osinga; Alexandre Kaempfen; Franziska Saxer; Anke Wixmerten; Sylvie Miot; Florian Thieringer; Joerg Beinemann; Christoph Kunz; Claude Jaquiéry; Thomas Weikert; Felix Kaul; Arnaud Scherberich; Dirk J Schaefer; Ivan Martin Journal: Front Oncol Date: 2021-12-06 Impact factor: 6.244