The use of cranial resection templates with 3D virtual planning and PEEK patient-specific implants: A 3 year follow-up

2019 ◽  
Vol 47 (4) ◽  
pp. 542-547 ◽  
Author(s):  
S.E.C.M. van de Vijfeijken ◽  
R. Schreurs ◽  
L. Dubois ◽  
A.G. Becking ◽  
A.G. Becking ◽  
...  
Keyword(s):  
Patient Specific ◽  
Virtual Planning ◽  
Patient Specific Implants

scholarly journals Preoperative Planning of Virtual Osteotomies Followed by Fabrication of Patient Specific Reconstruction Plate for Secondary Correction and Fixation of Displaced Bilateral Mandibular Body Fracture

2016 ◽  
Vol 9 (2) ◽  
pp. 188-193 ◽  
Author(s):  
Andreas Thor
Keyword(s):  
Trauma Surgery ◽  
Computer Software ◽  
Open Bite ◽  
Patient Specific ◽  
Facial Skeleton ◽  
Reconstruction Plate ◽  
Virtual Planning ◽  
Patient Specific Implants ◽  
Body Fracture ◽  
Mandibular Body

This paper describes the course of treatment of a severely diplaced bilateral mandibular body fracture, where the first osteosynthesis failed. The subject developed an open bite due to a posterior rotation of the distal part of the mandible and anterior rotation of the proximal parts of the mandible. This situation was evaluated with CBCT and the facial skeleton was segmented using computer software. Correct occlusion was virtually established by bilateral virtual osteotomies in the fracture areas of the mandible. After segmentation, the mandible was virtually rotated back into position and the open bite was closed. A patient specific mandibular reconstruction plate was outlined and fabricated from the new virtual situation and the plate was thereafter installed utilizing the preoperative plan. Osteotomy- and drill-guides was used and thus simplified the surgery resulting in uneventful healing. Virtual planning and patient specific implants and guides were valuable in this case of secondary reconstructive trauma surgery.

scholarly journals Comparison between patient specific implants and conventional mini-plates in Le Fort I osteotomy with regard to infections: No differences in up to 3-year follow-up

2018 ◽  
Vol 46 (10) ◽  
pp. 1814-1817 ◽  
Author(s):  
Juho Suojanen ◽  
Sanna Järvinen ◽  
Karoliina VM Kotaniemi ◽  
Justus Reunanen ◽  
Tuula Palotie ◽  
...  
Keyword(s):  
Patient Specific ◽  
Le Fort I Osteotomy ◽  
Le Fort ◽  
Patient Specific Implants ◽  
Le Fort I

scholarly journals Patient-Specific Implants for Pelvic Tumor Resections

2021 ◽  
Vol 11 (8) ◽  
pp. 683
Author(s):  
Kevin Döring ◽  
Kevin Staats ◽  
Stephan Puchner ◽  
Reinhard Windhager
Keyword(s):  
Postoperative Complications ◽  
Median Number ◽  
Harris Hip Score ◽  
Patient Specific ◽  
Limb Salvage Surgery ◽  
Patient Specific Implants ◽  
Custom Made ◽  
Revision Reconstruction ◽  
One Year

Introduction Limb salvage surgery for periacetabular malignancies is technically demanding and associated with a considerable likelihood of postoperative complications and surgical revision. Reconstruction using custom-made implants represents the treatment of choice. This study was conducted to analyze treatment outcomes of custom-made implants in a single orthopaedic tumor center. Patients and Methods Twenty patients with a histologically verified periacetabular malignancy and a median follow up time of 5 (1–17) years were included. Results The median number of revision surgeries per patient was 1.5 (0–7). Complications were dislocations in 3 patients, aseptic loosening in 4 patients, deep infections in 9 patients, thromboembolic events in 5 patients and sciatic nerve lesions in 4 patients. Overall survival was 77% after one year, 69% after two years and 46% after five years. Median Harris Hip Score was 81 (37–92) points at last follow up. Conclusion Although internal hemipelvectomy and reconstruction using custom-made implants is linked with a high risk of postoperative complications, good functional outcomes can be regularly achieved. This information may help treating surgeons to find adequate indications, as eligible patients need to be critically selected and integrated into the decision-making process.

scholarly journals Mandibular Reconstruction Using ProPlan CMF: A Review

2017 ◽  
Vol 1 (1) ◽  
pp. s-0037-1606835 ◽  
Author(s):  
Ryo Sasaki ◽  
Michael Rasse
Keyword(s):  
Computer Assisted Surgery ◽  
Mandibular Reconstruction ◽  
Patient Specific ◽  
Computer Assisted ◽  
Planning Service ◽  
Virtual Planning ◽  
Surgical Guide ◽  
Surgical Guides ◽  
Computer Aided

ProPlan CMF (Depuy Synthes, Solothurn, Switzerland, and Materialise, Leuven, Belgium) is a computer-aided surgical virtual planning service using an online meeting with professional medical engineers and transfers patient-specific surgical guide to the virtual plan. Moreover, prebent reconstruction plates or patient-specific computer-aided manufacturing-fabricated reconstruction can also be used. This service started in 2011. Currently, it is widely used in Europe. Current status of mandibular reconstruction with ProPlan CMF vertical planning service with the surgical guide was reviewed. The accuracy was excellent in terms of contact of the osteotomized parts and the contact to the remaining skeleton. The authors found that currently, a small number of reports regarding the mandibular reconstruction with virtual planning service and surgical guides are available. These reports also have a small number of cases and short-term follow-up results. In this situation, this review revealed that (1) mainly the resection guides, cutting guides, and patient-specific mandible reconstruction plates were adequately well fitted to the surgical site intraoperatively, (2) the ischemic time might be more reduced than that of the conventional surgery (3) the accuracy of computer-assisted surgery in the mandibular reconstruction was clinically acceptable, and (4) condyle positions after the computer-assisted surgery was mainly normal. The higher additional cost than that of the conventional technique is presently an issue. Large-scale clinical studies and long-term follow-up studies are demanded.

Computer-Assisted Virtual Planning for Surgical Guide Manufacturing and Internal Distractor Adaptation in the Management of Midface Hypoplasia in Cleft Patients

2017 ◽  
Vol 54 (4) ◽  
pp. 457-464 ◽  
Author(s):  
Paolo Scolozzi ◽  
Georges Herzog
Keyword(s):  
Computer Aided Design ◽  
Cleft Lip ◽  
Cleft Lip And Palate ◽  
Patient Specific ◽  
Computer Assisted ◽  
Virtual Planning ◽  
Surgical Guide ◽  
Patient Specific Implants ◽  
Surgical Guides ◽  
Computer Aided

We are reporting the treatment of severe maxillary hypoplasia in two patients with unilateral cleft lip and palate by using a specific approach combining the Le Fort I distraction osteogenesis technique coupled with computer-aided design/computer-aided manufacturing customized surgical guides and internal distractors based on virtual computational planning. This technology allows for the transfer of the virtual planned reconstruction to the operating room by using custom patient-specific implants, surgical splints, surgical cutting guides, and surgical guides to plate or distractor adaptation.

scholarly journals A New Strategy for Patient-Specific Implant-Borne Dental Rehabilitation in Patients With Extended Maxillary Defects

2021 ◽  
Vol 11 ◽  
Author(s):  
Philippe Korn ◽  
Nils-Claudius Gellrich ◽  
Philipp Jehn ◽  
Simon Spalthoff ◽  
Björn Rahlf
Keyword(s):  
Soft Tissue ◽  
Donor Site ◽  
Primary Stability ◽  
Patient Specific ◽  
Safe Alternative ◽  
Patient Specific Implants ◽  
Ablative Surgery ◽  
Dental Rehabilitation ◽  
Maxillary Defects

Purpose of the StudyPatients undergoing ablative tumor surgery of the midface are faced with functional and esthetic issues. Various reconstructive strategies, such as implant-borne obturator prostheses or microvascular tissue transfer, are currently available for dental rehabilitation. The present study shows the first follow-up of patients treated with patient-specific implants (IPS Implants® Preprosthetic) for the rehabilitation of extended maxillary defects following ablative surgery.Patients and MethodsAll patients treated with patient specific implants due to postablative maxillary defects were included. 20 implants were placed in the 19 patients (bilateral implants were placed in one of the cases). In 65.75% of the cases, resection was performed due to squamous cell carcinoma. In addition to the primary stability, the clinical implant stability, soft tissue management, successful prosthodontic restoration, and complications were evaluated at a mean follow-up period of 26 months.ResultsAll patient-specific implants showed primary stability and were clinically stable throughout the observation period. Definitive prosthodontic restorations were performed in all patients. No implant loosening was observed. Major complications occurred only in previously irradiated patients with insufficient soft tissue conditions (p = 0.058). Minor complications such as exposure of the underlying framework or mucositis were observed, but they never led to failure of restorations or implant loss.ConclusionsTreatment of postablative maxillary defects with patient-specific implants offers a safe alternative with predictable results for full and rapid dental rehabilitation, avoiding time-consuming augmentation procedures and additional donor-site morbidity.

Development of JIT patient-specific implants

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Leanne SOBEL ◽  
Katrina SKELLERN ◽  
Kat PEREIRA
Keyword(s):  
Design Thinking ◽  
Technology Development ◽  
Complex Problem ◽  
Project Team ◽  
Healthcare Sector ◽  
Strategy Development ◽  
Patient Specific ◽  
Critical System ◽  
Patient Specific Implants ◽  
Human Centred Design

Design thinking and human-centred design is often discussed and utilised by teams and organisations seeking to develop more optimal, effective or innovative solutions for better customer outcomes. In the healthcare sector the opportunity presented by the practice of human-centred design and design thinking in the pursuit of better patient outcomes is a natural alignment. However, healthcare challenges often involve complex problem sets, many stakeholders, large systems and actors that resist change. High-levels of investment and risk aversion results in the status quo of traditional technology-led processes and analytical decision-making dominating product and strategy development. In this case study we present the opportunities, challenges and benefits that including a design-led approach in developing complex healthcare technology can bring. Drawing on interviews with participants and reflections from the project team, we explore and articulate the key learning from using a design-led approach. In particular we discuss how design-led practices that place patients at the heart of technology development facilitated the project team in aligning key stakeholders, unearthing critical system considerations, and identifying product and sector-wide opportunities.

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