Wrist arthroscopic procedures using ulnar wrist portals, such as the 6-ulnar and direct foveal portals, have a risk of injuring the dorsal sensory branch of the ulnar nerve. This study investigated the anatomy of the dorsal sensory branch of the ulnar nerve and its positional changes during supination, neutral rotation and pronation at specific landmarks to find an optimal forearm position to minimize the risk of iatrogenic nerve injury during arthroscopy. The concept of 'nerve density' was introduced to quantify the likelihood of encountering the dorsal sensory branch of the ulnar nerve within different sectors, correlating to the risk of nerve injury. Our findings indicate that the sectors containing the 6-ulnar and direct foveal portals showed very low risk (≤5% risk) in supination and neutral rotation, but moderate risk (30-60% risk) in pronation. These results suggest that maintaining the forearm in neutral rotation or supination reduces the risk of injury to the dorsal sensory branch of the ulnar nerve during procedures that use these portals. IV.
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http://dx.doi.org/10.1177/17531934251321969 | DOI Listing |
Prog Neurobiol
March 2025
Department of Medicine and Surgery (DIMEC), Neuroscience Unit, University of Parma, Italy. Electronic address:
Classically, the insula is considered an associative multisensory cortex where emotional awareness emerges through the integration of interoceptive and exteroceptive information, along with autonomic regulation. However, since early intracortical microstimulation (ICMS) studies, the insular cortex has also been conceived as a mosaic of anatomo-functional sectors processing various types of sensory information to generate specific overt behaviors. Based on this, the insula has been subdivided into distinct functional fields: an anterior field associated with oroalimentary behaviors, a middle field involved dorsally in hand movements and ventrally in emotional reactions, and a posterior field engaged in axial and proximal movements.
View Article and Find Full Text PDFMol Pain
March 2025
School of Biosciences, University of Sheffield, Sheffield, United Kingdom.
Diabetic peripheral neuropathy (DPN) is the most common complication of diabetes. Half of DPN patients experience sensory deficits including loss of sensation and pain. Loss of sensation increases the risk of unnoticed foot injuries which combined with poor circulation and healing lead to amputation.
View Article and Find Full Text PDFCell Mol Biol Lett
March 2025
Department of Oral Anatomy & Developmental Biology, Kyung Hee University College of Dentistry, Seoul, Republic of Korea.
Background: Neuropathic pain is a complex condition resulting from damage or disease in the somatosensory nervous system, causing significant physical and emotional distress. Despite its profound impact, the underlying causes and treatment methods of neuropathic pain remain poorly understood.
Methods: To better understand this condition, we conducted the first study examining the spatial distribution and dynamic expression changes of N-glycan molecules that play a crucial role in nervous system function and sustainable pain signal transmission across multiple regions of the spinal cord and brain in an experimentally induced neuropathic pain model, using matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI MSI).
J Integr Med
March 2025
Zhejiang Key Laboratory of Neuropsychopharmacology, School of Pharmaceutical Sciences, Jinhua Academy, Zhejiang Chinese Medical University, Hangzhou Zhejiang Province, 310053, China. Electronic address:
Objective: Treating peripheral nerve injury (PNI) presents a clinical challenge due to limited axon regeneration. Strychni Semen, a traditional Chinese medicine, is clinically used for numbness and hemiplegia. However, its role in promoting functional recovery after PNI and the related mechanisms have not yet been systematically studied.
View Article and Find Full Text PDFRev Neurosci
March 2025
Department of Psychological and Cognitive Sciences, 12442 Tsinghua University, Beijing, 100084, China.
Dialectical thinking represents a cognitive style emphasizing change, contradiction, and holism. Cross-cultural studies reveal a stark contrast of dialectical thinking between East Asian and Western cultures, highlighting East Asians' superior ability to embrace contradictions and foresee transformation, fostering psychological resilience through emotional complexity and tolerance for contradictions. Despite its importance, the neural basis of dialectical thinking remains underexplored.
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