The number of computed tomography(CT)-guided interventional procedures has increased because they are less invasive and more cost-effective than open surgery. Transarterial chemoembolization(TACE)is a method in which chemotherapeutic drugs are injected into the artery that supplies the tumor. It is also well known that multidetector-CT has tremendously advanced our diagnostic capabilities broadly throughout medicine. These diagnostic benefits have combined with the widespread availability and rapidity of scanning to marked increases in CT use, for example, dynamic contrast-enhanced CT, CT perfusion imaging, and CT during angiography. However, rapidly increasing use of CT has heightened concerns about the high levels of cumulative exposure that may occur in patients undergoing recurrent imaging for chronic conditions such as chronic hepatitis or hepatocellular carcinomas. So far, bone toxicity associated with CT has received little attention. The prevalence of osteoporosis and trabecular microstructural changes using clinical MDCT-based microstructural analysis in patients after TACE with the interventional-CT system to treat hepatocellular carcinoma have been demonstrated here.
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Can J Kidney Health Dis
December 2024
Department of Medicine, Western University, London, ON, Canada.
Background: Kidney transplant recipients are uniquely exposed to the disordered bone metabolism associated with chronic kidney disease beginning before transplantation followed by chronic corticosteroid use after transplantation. Previous efforts to synthesize the rapidly accruing evidence regarding estimation and management of fracture risk in kidney transplant recipients are outdated and incomplete.
Objective: To synthesize the evidence informing the overall incidence, patient-specific risk prediction, and methods of prevention of fractures in patient living with a kidney transplant.
Cureus
November 2024
Aerospace Engineering, Universiti Putra Malaysia, Kuala Lumpur, MYS.
Introduction Spinal fusion surgery with pedicle screws is commonly performed to stabilize the spine of osteoporotic patients. However, securing a strong screw fixation in osteoporotic bone presents significant challenges due to the reduced bone density. This study aimed to compare the biomechanical performance in an osteoporotic bone model of pedicle screws inserted using two different techniques, the Jamshidi needle technique and the pedicle probe technique, as well as the influence of tapping on both these techniques.
View Article and Find Full Text PDFBiomater Transl
September 2024
Orthopaedic Research Institute and Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
Three-dimensional printed Ti-6Al-4V hemipelvic prosthesis has become a current popular method for pelvic defect reconstruction. This paper presents a novel biomimetic hemipelvic prosthesis design that utilises patient-specific anatomical data in conjunction with the Voronoi diagram algorithm. Unlike traditional design methods that rely on fixed, homogeneous unit cell, the Voronoi diagram enables to create imitation of trabecular structure (ITS).
View Article and Find Full Text PDFBioact Mater
April 2025
Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, China.
Human long bones exhibit pore size gradients with small pores in the exterior cortical bone and large pores in the interior cancellous bone. However, most current bone tissue engineering (BTE) scaffolds only have homogeneous porous structures that do not resemble the graded architectures of natural bones. Pore-size graded (PSG) scaffolds are attractive for BTE since they can provide biomimicking porous structures that may lead to enhanced bone tissue regeneration.
View Article and Find Full Text PDFJ Orthop Surg Res
December 2024
Department of Cardiology, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong, 266000, China.
An improved understanding of the molecular actions underpinning bone marrow mesenchymal stem cell (BMSC) differentiation could highlight new therapeutics for osteoporosis (OP). Current evidence indicates that microRNAs (miRNAs) exert critical roles in many biological systems, including osteoblast differentiation. In this study, we examined miR-468-3p effects on osteogenic differentiation (OD).
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