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Lower extremity nerve transposition repair has become an important treatment strategy for peripheral nerve injury; however, brain changes caused by this surgical procedure remain unclear. In this study, the distal stump of the right sciatic nerve in a rat model of sciatic nerve injury was connected to the proximal end of the left sciatic nerve using a chitin conduit. Neuroelectrophysiological test showed that the right lower limb displayed nerve conduction, and the structure of myelinated nerve fibers recovered greatly. Muscle wet weight of the anterior tibialis and gastrocnemius recovered as well. Multiple-model resting-state blood oxygenation level-dependent functional magnetic resonance imaging analysis revealed functional remodeling in multiple brain regions and the re-establishment of motor and sensory functions through a new reflex arc. These findings suggest that sciatic nerve transposition repair induces brain functional remodeling. The study was approved by the Ethics Committee of Peking University People's Hospital on December 9, 2015 (approval No. 2015-50).
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http://dx.doi.org/10.4103/1673-5374.317991 | DOI Listing |
Rev Bras Ortop (Sao Paulo)
June 2025
Grupo do Quadril, Departamento de Ortopedia e Traumatologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil.
Injuries to the proximal hamstring muscle complex are common in athletes and range from strains to tendinous and bony avulsions. The lesion mechanism typically involves an eccentric contraction of the hamstring muscles during abrupt hip hyperflexion with the knee in extension. Low-speed injuries occur in high kicks and splits, whereas tendon avulsions are common in high-speed activities, such as running and ballet.
View Article and Find Full Text PDFRev Bras Ortop (Sao Paulo)
June 2025
Hip Group, Department of Orthopedics and Traumatology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
Injuries to the proximal hamstring muscle complex are common in athletes and range from strains to tendinous and bony avulsions. The lesion mechanism typically involves an eccentric contraction of the hamstring muscles during abrupt hip hyperflexion with the knee in extension. Low-speed injuries occur in high kicks and splits, whereas tendon avulsions are common in high-speed activities, such as running and ballet.
View Article and Find Full Text PDFMuscle Nerve
September 2025
Division of Plastic and Reconstructive Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.
Introduction/aims: Therapeutic electrical stimulation (ES) of repaired nerves has been demonstrated to improve muscle function. Previous studies applied ES to the proximal transected nerve end (P-ES) with benefits to the neuronal cell body. We investigated whether a single ES dose applied to the distal end (D-ES) or distal and proximal ends (DP-ES) prior to nerve repair provides benefits to neuromuscular junction (NMJ) and muscle recovery.
View Article and Find Full Text PDFJ Drug Target
September 2025
Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Background: Chronic constriction injury (CCI) of the sciatic nerve induces neuropathic pain, inflammation, oxidative stress, and neurodegenerative changes, impairing sensory and emotional function. While curcumin is well recognized for its anti-inflammatory and neuroprotective properties, its therapeutic use is limited by poor bioavailability. Curcumin liposomal nanoparticles (CLNs) offer improved delivery and stability.
View Article and Find Full Text PDFAnn Afr Med
September 2025
Department of Anaesthesiology, Kasturba Medical College Mangalore Manipal Academy of Higher Education, Manipal, India.
Background: Regional anesthesia techniques, such as unilateral spinal anesthesia and peripheral nerve blocks, are essential components of multimodal analgesia. Nonetheless, "rebound pain," an abrupt increase in nociceptive intensity following the cessation of the block, is inadequately defined and may compromise patient satisfaction and functional recovery.
Aims And Objectives: This study aimed to compare postoperative pain profiles, the incidence of rebound pain, and patient satisfaction following popliteal sciatic nerve block versus unilateral spinal anesthesia in elective foot surgeries.