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Case-Based Virtual Reality Simulation for Severe Pelvic Trauma Clinical Skill Training in Medical Students: Design and Pilot Study.
JMIR Med Educ
January 2025
Department of Orthopedics, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Background: Teaching severe pelvic trauma poses a significant challenge in orthopedic surgery education due to the necessity of both clinical reasoning and procedural operational skills for mastery. Traditional methods of instruction, including theoretical teaching and mannequin practice, face limitations due to the complexity, the unpredictability of treatment scenarios, the scarcity of typical cases, and the abstract nature of traditional teaching, all of which impede students' knowledge acquisition.
Objective: This study aims to introduce a novel experimental teaching methodology for severe pelvic trauma, integrating virtual reality (VR) technology as a potent adjunct to existing teaching practices.
Comparative cardiovascular safety of romosozumab versus bisphosphonates in Japanese patients with osteoporosis: a new-user, active comparator design with instrumental variable analyses.
J Bone Miner Res
January 2025
Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University, Fukushima-city, Fukushima, Japan.
This study analyzed the association of romosozumab, a human monoclonal antibody with bone-forming and bone resorption-inhibiting effects, and bisphosphonates with the development of cardiovascular disease among patients with osteoporosis. A new-user design was employed to address selection bias, and instrumental variable analysis was used to address confounding by indication. Japanese patients aged ≥40 years, diagnosed with osteoporosis or experienced a fragility fracture, were admitted to medical facilities covered by a commercial administrative claims database, and newly prescribed romosozumab or bisphosphonates after the commercialization of romosozumab in Japan (March 4, 2019) were included based on verification of a 180-day washout period.
View Article and Find Full Text PDFNicotinamide Prevents The Plasticity Impairments And The Cognitive Dysfunction Caused By Bone Fracture In Older Mice.
J Gerontol A Biol Sci Med Sci
January 2025
Centro de Investigación Clínica Avanzada (CICA), Hospital Clínico Universidad de Chile.
Postoperative delirium (POD), an acute cognitive dysfunction linked to morbidity and mortality, is characterized by memory impairments and disturbances in consciousness, particularly in patients aged 65 and older. Neuroinflammation and NAD+ imbalance are key mechanisms behind POD, leading to synaptic and cognitive deterioration. However, how surgery contributes to POD and neuroinflammation remains unclear, and effective treatments are lacking.
View Article and Find Full Text PDFPredictors of Venous Thromboembolism Following Geriatric Distal Femur Fracture Fixation: Are These Patients at Higher Risk Compared With Hip Fracture Patients?
J Am Acad Orthop Surg Glob Res Rev
January 2025
From the Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, CT.
Introduction: Venous thromboembolism (VTE) following injury and subsequent fixation of a distal femur fracture (DFFx) is associated with considerable morbidity. However, the incidence of VTE, associated factors, and the relative risk compared with hip fracture (HFx) fixation remains poorly characterized.
Methods: Retrospective cohort study using the PearlDiver M165 database to identify geriatric patients who underwent DFFx and HFx fixation.
Effects of Astragalus polysaccharide on the structure and function of skeletal muscle in D-galactose-induced C57BL/6J mice.
Am J Transl Res
December 2024
Department of Geriatrics, The First Affiliated Hospital of Chongqing Medical University Chongqing 400042, China.
Objective: To investigate the effects of Astragalus polysaccharide (APS) on skeletal muscle structure and function in D-galactose (D-gal)-induced C57BL/6J mice.
Methods: Eighteen male C57BL/6J mice of specific pathogen-free (SPF) grade, aged 8 weeks, were selected and divided into three groups: a control group (0.9% saline gavage for 16 weeks), a D-gal group (subcutaneous injection of 200 mg/kg D-galactose in the upper neck region, once daily for 8 weeks), and a D-gal + APS group (subcutaneous injection of 200 mg/kg D-galactose, once daily for 8 weeks, with concurrent administration of 100 mg/kg APS by gavage for 8 weeks).
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