Sciatic Nerve Injury
Sciatic Nerve Injury - Related Videos
02:40
Axonal Regeneration in the Sciatic Nerve of a Mouse Following a Crush Injury
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2025
Source: Li, Q., et al. Investigating Mammalian Axon Regeneration: In Vivo Electroporation of Adult Mouse Dorsal Root Ganglion. J. Vis. Exp. (2018)This video demonstrates the process of axonal regeneration in a mouse sciatic nerve following a crush injury. The isolated nerve is fixed and prepared for imaging, with fluorescent proteins expressed in neurons to visualize axon growth. Using an epifluorescence microscope, axon regeneration is traced from the injury site to assess the extent of...
05:29
Axoplasm Isolation from Rat Sciatic Nerve
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Cited by 6 •
2010
We demonstrate a protocol for axoplasm isolation from adult rat sciatic nerve based on dissection of nerve fascicles and incubation in hypotonic medium to release myelin and lyse non-axonal structures, followed by extraction of the remaining axon-enriched material.
08:23
Chronic Constriction of the Sciatic Nerve and Pain Hypersensitivity Testing in Rats
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Cited by 151 •
2012
Due to the simplicity of surgery and the robust behavioural outcome, chronic constriction of the sciatic nerve is one of the pre-eminent animal models of neuropathic pain. Within 24 hrs following surgery, pain hypersensitivity is established and can be quantitatively measured using a von Frey aesthesiometer (mechanical test) and plantar analgesia meter (thermal test).
03:51
Murine Sciatic Nerve Model of Perineural Invasion or PNI: Extraction and Processing of Sciatic Nerve to Understand Invasion by Cancer Cells
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2025
In this video, we describe the procedure to establish a murine model of perineural invasion by injecting cancer cells into the sciatic nerve. The model can help gain an understanding of the magnitude of nerve invasion for subsequent assessment of anti-cancer drugs.
07:09
The Sciatic Nerve Cuffing Model of Neuropathic Pain in Mice
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Cited by 78 •
2014
Neuropathic pain is a consequence of a lesion or disease affecting the somatosensory system. The “cuff model” of neuropathic pain in mice consists of the implantation of a polyethylene cuff around the main branch of the sciatic nerve. Mechanical allodynia is tested using von Frey filaments.
FAQs
Damage to axons can interrupt the structures that carry signals, while myelin disruption can impair their electrical conduction. The resulting communication failure between the spinal cord and lower limb can affect both motor and sensory signaling. In neuroscience, separating these effects helps relate structural damage to pain, weakness, numbness, and altered reflexes.
Trauma, compression, and stretching are distinct ways the sciatic nerve can be damaged, but they share a possible consequence: disruption of axons or myelin. Their relevance lies in showing that different physical insults can converge on impaired signaling. This makes the injury useful for studying how damage mechanisms relate to neurological symptoms.
After injury, peripheral nerve degeneration, inflammation, and regeneration provide a framework for examining how damaged nervous tissue changes. The process also reveals responses from neurons and supporting cells, rather than treating the nerve as an isolated cable. This cellular context helps researchers connect tissue responses with impaired function and investigate whether repair or neuroprotective strategies improve recovery.
Experimental models provide a tractable system for examining what happens after sciatic nerve damage. Researchers can use them to evaluate repair strategies, neuroprotective treatments, and functional recovery within the same broad injury context. They also support investigation of degeneration, inflammation, regeneration, and cellular responses, connecting experimental observations with questions about how damaged peripheral nerves recover.
Functional recovery is a central outcome because the injury can disturb motor and sensory signaling, pain, weakness, numbness, and reflexes. Examining recovery therefore links biological responses to consequences that affect lower-limb function. In research, this outcome helps determine whether a repair strategy or neuroprotective treatment is associated with improvement rather than only with cellular changes.
These models allow investigators to examine potential repair strategies and neuroprotective treatments against a background of peripheral nerve damage. Their value extends beyond symptom description because researchers can consider degeneration, inflammation, regeneration, cellular responses, and functional recovery together. This combination supports a broader assessment of whether an intervention corresponds with improved nerve-related outcomes.