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Morphometric and Morphological Study of Thoracic and Lumbar Intervertebral Discs in Guinea Pigs (Cavia porcellus).
Anat Histol Embryol
January 2025
Department of Surgery and Radiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.
This study investigates the gross morphological and morphometric characteristics of thoracic and lumbar intervertebral discs (IVDs) in guinea pigs, utilising micro-CT imaging and anatomical dissection. The findings reveal 13 thoracic and six lumbar IVDs were identified, with thoracic discs transitioning from rounded forms at T1-T3 to triangular and heart-shaped structures at T4-T13, while lumbar IVDs exhibited a consistently flattened heart shape. Morphometric analysis revealed statistically significant differences, with lumbar IVDs being larger in lateral and dorsoventral width, disc area, annulus fibrosus (AF) area and nucleus pulposus (NP) area, and ventral height compared to thoracic discs.
View Article and Find Full Text PDFEndoscopic Transforaminal Thoracic Decompression for Removal of a Giant Calcified Thoracic Disc Herniation.
Neurospine
December 2024
University Spine Center Zurich, Balgrist University Hospital, University of Zurich, Zurich, Switzerland.
To demonstrate the preoperative workup, surgical planning and execution of transforaminal endoscopic thoracic discectomy (TETD) for a giant calcified disc herniation. Surgeries for symptomatic thoracic disc herniations are rare and challenging. The main goal is to achieve sufficient decompression with minimal manipulation of the spinal cord.
View Article and Find Full Text PDFThe relationship between radiographic disc calcification score and FGF4L2 genotype in dachshunds.
J Vet Intern Med
December 2024
Animal Sciences, Oregon State University, Corvallis, Oregon, USA.
Background: The relationship between radiographic disc calcification score and FGF4L2 genotype has been reported in only a small number of dachshunds.
Hypothesis: A genotype with either 0 or 1 FGF4L2 copy will be associated with a lower number of calcified discs (lower K-n) compared with a genotype with 2 FGF4L2 copies.
Animals: Dachshunds registered with the Norwegian or Finnish Kennel Clubs for which both K-n and FGF4L2 genotype are known (n = 407).
Development of New Surgical Training for Full Endoscopic Surgery Using 3D-Printed Models.
Spine Surg Relat Res
November 2024
Department of Diagnostic Orthopedics, Tokushima University Graduate School, Institute of Health Sciences, Tokushima, Japan.
Introduction: Full endoscopic spine surgery continues to spread worldwide but has a long learning curve. Conventional endoscopy training uses live pigs or human cadavers, which has disadvantages such as high costs and limited availability. Therefore, this study aimed to develop and evaluate three-dimensional (3D)-printed models for endoscopy training.
View Article and Find Full Text PDFCompare three deep learning-based artificial intelligence models for classification of calcified lumbar disc herniation: a multicenter diagnostic study.
Front Surg
November 2024
Department of Spine Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
Objective: To develop and validate an artificial intelligence diagnostic model for identifying calcified lumbar disc herniation based on lateral lumbar magnetic resonance imaging(MRI).
Methods: During the period from January 2019 to March 2024, patients meeting the inclusion criteria were collected. All patients had undergone both lumbar spine MRI and computed tomography(CT) examinations, with regions of interest (ROI) clearly marked on the lumbar sagittal MRI images.
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