Meckel's Diverticulum (MD) is the most common congenital anomaly of gastrointestinal tract, occurring in 2% of the population. It is a true diverticulum and histologically all four intestinal layers are present within MD. There are various complications related to a Meckel's diverticulum, including haemorrhage, intestinal obstruction, inflammation and perforation. Axial torsion followed by gangrene of MD is the rarest of the complications that have been reported. The exact mechanism for torsion is unclear. Preoperative diagnosis of torsion of MD is difficult and often confused with appendicitis as pain is usually localized to right lower quadrant. Radiological investigations do not provide much help in diagnosis. We report a case of axial torsion of MD presenting as acute abdomen in an 11-year-old female patient. The diagnostic laparoscopy was performed. Confirmatory diagnosis and further surgical management was done by exploratory laparotomy under general anaesthesia.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5713797 | PMC |
http://dx.doi.org/10.7860/JCDR/2017/28613.10580 | DOI Listing |
JOR Spine
March 2025
Beijing Key Laboratory for Design and Evaluation Technology of Advanced Implantable & Interventional Medical Devices, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering Beihang University Beijing China.
Background: Growth rods are the gold standard for treating early-onset scoliosis (EOS). However, current treatments with growth rods do not optimize spinal growth in EOS patients, and frequent distraction surgeries significantly increase complications, imposing considerable economic and psychological burdens on patients. An improved growth rod is urgently required to address the need for dynamic growth and external regulation.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Institute of Metrology and Biomedical Engineering, Warsaw University of Technology, A. Boboli 8, 02-525 Warsaw, Poland.
The magnetoelastic effect is known as the dependence between the magnetic properties of the material and applied mechanical stress. The stress might not be applied directly but rather generated by the applied torque. This creates the possibility of developing a torque-sensing device based on the magnetoelastic effect.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Faculty of Civil and Environmental Engineering, West Pomeranian University of Technology in Szczecin, Al. Piastów 17, 70-310 Szczecin, Poland.
Dynamic analysis of structures is a key challenge in structural engineering, especially in choosing effective and accurate numerical methods. Steel-concrete composite structures, commonly used in bridges and floors, require calculations of dynamic parameters to ensure safety and comfort. Few studies compare the effectiveness of the finite element method (FEM) and the rigid finite element method (RFEM) in the dynamic analysis of such structures.
View Article and Find Full Text PDFJ Biomech
January 2025
Department of Mechanical Engineering & Mechanics, Lehigh University, 27 Memorial Drive West, Bethlehem, PA 18015, USA. Electronic address:
In large animal models of bone fracture repair, postmortem torsional testing is commonly used to assess healing biomechanics. Bending and axial tests are physiologically relevant, but much less commonly performed. Virtual torsional testing using image-based finite element models has been validated to postmortem bench tests, but its predictive value for capturing whole-bone mechanics and fracture healing quality under other physiologically relevant loading modes has not yet been established.
View Article and Find Full Text PDFJ Org Chem
January 2025
Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074 Würzburg, Germany.
Chiral organic molecules with a complementing π-structure are highly desired to obtain materials with good semiconducting properties and pronounced chirality effects in the visible region. Herein, we introduce a novel design strategy to achieve an axially chiral and rigid perylene bisimide (PBI) dye by attaching the chirality-inducing 2,2'-biphenoxy moiety at one side of the bay area and the rigidity-inducing di--butylsilanediol bridge on the other side. This yielded a new bay-functionalized PBI derivative carrying the combination of a highly rigid and, simultaneously, an axially chiral perylene core.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!