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An MRI-guided stereotactic neurosurgical robotic system for semi-enclosed head coils.
J Robot Surg
December 2024
National Engineering Research Center of Neuromodulation, School of Aerospace Engineering, Tsinghua University, Beijing, 100084, China.
Magnetic resonance imaging (MRI) offers high-quality soft tissue imaging without radiation exposure, which allows stereotactic techniques to significantly improve outcomes in cranial surgeries, particularly in deep brain stimulation (DBS) procedures. However, conventional stereotactic neurosurgeries often rely on mechanical stereotactic head frames and preoperative imaging, leading to suboptimal results due to the invisibility and the contact with patient's head, which may cause additional harm. This paper presents a frameless, MRI-guided stereotactic neurosurgical robotic system.
View Article and Find Full Text PDFCT-guided radiofrequency neurotomy (RFN) of bilateral T3-4 sympathetic chain combined with bilateral L3 sympathetic ganglion in patient with palmar hyperhidrosis.
J Surg Case Rep
January 2025
Department of Pain, Meizhou People's Hospital, 514031 Meizhou, Guangdong, China.
Palmoplantar hyperhidrosis is a functional disease with an unknown pathogenesis, making it challenging to find a lasting and effective treatment. This article reports a case of a 43-year-old patient with palmoplantar hyperhidrosis treated with computed tomography (CT)-guided radiofrequency neurotomy (RFN) of bilateral T3-4 sympathetic chain combined with bilateral L3 sympathetic ganglion. The optimal puncture level and skin entry point were selected, and measurements were taken using a CT tool to determine needle depth, angle, and distance from the midline.
View Article and Find Full Text PDFPedicle Screw Pull-Out Strength Between the Jamshidi Needle and Pedicle Probe Techniques in an Osteoporotic Cancellous Bone Model: A Biomechanical Study.
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 PDFValidation of Risk Prediction Models for Pneumothorax and Intercostal Catheter Insertion Following CT-Guided Lung Biopsy.
J Med Imaging Radiat Oncol
December 2024
Department of Radiology, Grampians Health, Ballarat Central, Victoria, Australia.
Background: CT-guided percutaneous transthoracic needle biopsy is the primary method for diagnosing lung lesions. Widely accepted validated risk prediction models are yet to be developed. A recently published study conducted at Grampians Health Services (GHS) developed two risk prediction models for predicting pneumothorax and intercostal catheter (ICC) insertion.
View Article and Find Full Text PDFNeuraxial Anesthesia and Risk of Root Damage: A 3D Ex Vivo Study.
NeuroSci
December 2024
Laboratory of Surgical Neuroanatomy (LSNA), Human Anatomy and Embryology Unit, Faculty of Medicine and Health Sciences, Universitat de Barcelona, 08036 Barcelona, Spain.
Cauda equina nerve roots may become damaged during neuraxial anesthesia, and post-puncture headache may appear in the case of cerebrospinal fluid leakage if needle tips are deformed due to bone contact when several attempts are needed. Our aim was to verify the correlation between skin-transverse process distance (st) and skin-dural sac distance (d) for calculation of optimal angles in a free visual guide and as a reference for the maximal depth to be traversed by the needle. Randomly selected ex vivo samples ( = 10) were flexed to reproduce the position of the lumbosacral spine during spinal anesthesia.
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