Maxillectomy performed in acquired lesions is often very extensive or bilateral, sparing very less hard and soft tissue in the oral cavity. These defects need both surgical and prosthetic rehabilitation. A definitive prosthesis is inserted after complete healing, when the patient is accustomed to the interim prosthesis. Definitive obturator warrants better retention and stability and needs a meticulous planning in design for long-term use. Conventional design has a few disadvantages; it needs modification many times to improve retention and psychological comfort of the patient. The article explains an easy technique in fabrication of an obturator. The conventional obturator design has a hollow antral part but usually a solid oral part, which adds to the weight of the prosthesis pressurizing the soft tissues in a maxillectomy, which affects the function and esthetics. This article demonstrates the hollowing of oral part, which bears the artificial teeth, and modifying the antral bulb, which covers the defect. It was designed considering the potential difficulties shared by the patient in wearing the single piece conventional hollow bulb design. This technique when followed was beneficial in reducing the weight of the prosthesis and enhancing retention, and allowed the patient to perform normal functional movements.
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http://dx.doi.org/10.1111/scd.12423 | DOI Listing |
J Orthop Surg Res
January 2025
Department of Epidemiology, School of Health, Mashhad University of Medical Science, Mashhad, Iran.
Background: In order to increase the stability of tibial component in total knee arthroplasty (TKA), intramedullary stem extensions (SE) have been developed. The aim of this systematic review and meta-analysis is to address the critical knowledge gap on post-operative outcomes and complications rate comparison between tibial component with SE compared to the tibial component standard configuration (SC) in primary cemented TKA.
Methods: We conducted a comprehensive search of online databases, including Pubmed, Embase, ISI Web of science, Cochrane Library, and Scopus, using the following MeSH terms, (total knee arthroplasty) OR (TKA) OR (total knee replacement) AND (Tibial stem) OR (stem extension) OR (long stem).
Sci Rep
January 2025
Department of Orthopaedic and Trauma Surgery, Musculoskeletal University Center Munich (MUM), Campus Grosshadern, Ludwig Maximilians University Munich, Munich, Germany.
In modern knee arthroplasty, surgeons increasingly aim for individualised implant selection based on data-driven decisions to improve patient satisfaction rates. The identification of an implant design that optimally fits to a patient's native kinematic patterns and functional requirements could provide a basis towards subject-specific phenotyping. The goal of this study was to achieve a first step towards identifying easily accessible and intuitive features that allow for discrimination between implant designs based on kinematic data.
View Article and Find Full Text PDFInt Orthop
January 2025
MSk Lab, Imperial College London, London, W12 0BZ, UK.
Purpose: Trauma and orthopaedic (T&O) surgery relies on medical implants and materials, often resulting in metalwork wastage (prosthesis, screws, nails, and plates). This places an economic strain on healthcare services and the environment. Our primary outcome is to quantify the implant wastage across the literature, and secondarily investigate the associated costs in this specialty.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Orthopedics, University-Town Hospital of Chongqing Medical University, Chongqing, China.
Metal implants are commonly used in clinical practice. However, little is known regarding the prevalence of metal implants. Therefore, this study aimed to evaluate the prevalence of metal implants in the United States (US) among individuals aged ≥ 40 years.
View Article and Find Full Text PDFNat Commun
January 2025
Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul, Republic of Korea.
Neuroprosthetics equipped with artificial synapses hold promise to address some most intricate medical problems, such as human sensory disorders. Yet, it is necessitated and of paramount importance for neuroprosthetics to be able to differentiate significant and insignificant signals. Here, we present an information-filterable artificial retina system that integrates artificial synapses with a signal-integration device for signal perception and processing with attention.
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