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Enhanced Osseointegration of Titanium Alloy Bone Implants Coated With Carob-calcium Hydroxide Nanoparticles: A Comparative Study.
J Craniofac Surg
December 2024
Department of Oral and Maxillofacial Surgery, College of Dentistry, King Saud University.
Objectives: This study aimed to evaluate the osseointegration properties of titanium bone implants coated with carob-mediated calcium hydroxide nanoparticles biomechanically, radiographically, and histologically on rabbit tibias.
Material And Methods: Forty coated and forty uncoated titanium alloy bone implants were inserted into 20 New Zealand rabbits; each tibia received 2 implants. The rabbits were sacrificed after 4 or 8 weeks, and samples were retrieved for biomechanical evaluation through removal torque test to assess the bond between implant and bone, radiographic evaluation through microcomputed tomography analysis to compare the bone-to-implant contact percentage and bone volume of the peri-implant area, scanning electron microscopic and histologic evaluation through hematoxylin and eosin stain.
Point-of-care additive manufacturing: state of the art and adoption in Spanish hospitals during pre to post COVID-19 era.
3D Print Med
December 2024
Diagnostic Imaging Department, Hospital de la Santa Creu i Sant Pau, Sant Antoni Maria Claret 167, 08025, Barcelona, Spain.
Background: 3D technologies [Virtual and Augmented 3D planning, 3D printing (3DP), Additive Manufacturing (AM)] are rapidly being adopted in the healthcare sector, demonstrating their relevance in personalized medicine and the rapid development of medical devices. The study's purpose was to understand the state and evolution of 3DP/AM technologies at the Point-of-Care (PoC), its adoption, organization and process in Spanish hospitals and to understand and compare the evolution of the models, clinical applications, and challenges in utilizing the technology during the COVID-19 pandemic and beyond.
Methods: This was a questionnaire-based qualitative and longitudinal study.
Metal-backed versus all-poly tibia in the original cartier unicompartmental knee arthroplasty: outcomes and survivorship at long-term follow-up.
Arch Orthop Trauma Surg
December 2024
Sezione di Chirurgia Protesica ad Indirizzo Robotico Unità di Traumatologia dello Sport, Fondazione Poliambulanza Istituto Ospedaliero, Brescia, Italy.
Purpose: Unicompartmental knee arthroplasty (UKA) is a viable option for localized osteoarthritis (OA) or avascular osteonecrosis with several advantages over total knee arthroplasty (TKA). UKA implants may feature a tibial component either all-polyethylene (AP) or metal-backed (MB). This study aims to retrospectively compare the clinical outcomes and survivorship of 74 UKAs over 16 years, focusing on comparing the results and survivorship of MB versus AP tibial tray.
View Article and Find Full Text PDFEffect of different artificial tears on tear film parameters in dry eye disease.
Optom Vis Sci
December 2024
Department of Biostatistics, LV Prasad Eye Institute, Hyderabad, Telangana, India.
Significance: Artificial tears remain the cornerstone for managing dry eye disease. The current study's real-world efficacy test of carboxymethylcellulose (CMC), polyethylene glycol (PEG) 400, or sodium hyaluronate (SH)-based lubricants highlights their similar effects on noninvasive tear film parameters over the short term. However, patients reported better relief with SH-based lubricants.
View Article and Find Full Text PDFResidues of Tetracycline, Erythromycin, and Sulfonamides in Beef, Eggs, and Honey from Grocery Stores in Knoxville, Tennessee, USA: Failure of Cooking to Decrease Drug Concentrations.
Vet Sci
December 2024
Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA.
This study evaluated the concentrations of tetracycline, erythromycin, and sulfonamide in beef, eggs, and honey products sold at grocery stores and whether standard cooking to 160 °F (71 °C) reduced the concentrations of antimicrobials spiked into the evaluated food products. In June 2021, the concentrations of selected antimicrobials in 65 samples (8 beef, 48 eggs, 9 honey samples) purchased from grocery stores within Knoxville, Tennessee, were measured using enzyme-linked immunosorbent assays. The Kruskal-Wallis test was used to assess the differences in the median tetracycline concentrations across food types, while the Mann-Whitney test was used to compare the erythromycin residue concentrations between beef and honey.
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