C7 Nerve Transfer
C7 Nerve Transfer - Related Videos
02:30
Gene Transfer into Schwann Cells of the Rodent Sciatic Nerve via Electroporation
0 Views •
2025
Source: Ino, D. et. al., In Vivo Gene Transfer to Schwann Cells in the Rodent Sciatic Nerve by Electroporation. J. Vis. Exp. (2016)This video demonstrates in vivo gene transfer to Schwann cells of the rodent sciatic nerve using electroporation. A plasmid DNA–dye solution is injected into the nerve, and electric pulses facilitate DNA entry. The DNA later integrates into the cell’s genome, enabling successful gene transfer in Schwann cells.
02:21
Direct Reconnection of Cervical Nerves to Restore Forelimb Mobility in a Mouse
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2025
Source: Gao, Z., et al. A Mouse Model of Direct Anastomosis via the Prespinal Route for Crossing Nerve Transfer Surgery. J. Vis. Exp. (2021).This video demonstrates restoring forelimb movement in a mouse via direct cervical nerve reconnection. It begins with a mouse with a paralyzed right forelimb due to a transected right C7 nerve at its nerve root. The left C7 nerve is severed, guided to the right via the prespinal route, and sutured with the right C7 nerve. The surgical site is then cleaned...
05:40
In Vivo Gene Transfer to Schwann Cells in the Rodent Sciatic Nerve by Electroporation
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Cited by 4 •
2016
Here, we present an in vivo technique for gene transfer to Schwann cells (SCs) in the rodent sciatic nerve. This simple technique is useful for investigating signaling mechanisms involved in the development and maintenance of myelinating SCs.
09:34
Structured Motor Rehabilitation After Selective Nerve Transfers
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Cited by 20 •
2019
Here, we present a protocol for the motor rehabilitation of patients with severe nerve injuries and selective nerve transfer surgery. It aims at restoring the motor function proposing several stages in patient education, early-stage therapy after surgery and interventions for rehabilitation after successful re-innervation of the nerve’s target.
07:59
Therapy Interventions for Upper Limb Amputees Undergoing Selective Nerve Transfers
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Cited by 3 •
2021
This work presents a protocol to enhance prosthetic function after selective nerve transfer surgery. Rehabilitation interventions include patient information and selection, support of wound healing, cortical re-activation of sensory-motor areas of the upper limb, training of selective muscle activation, prosthetic handling in daily life, and regular follow-up assessments.
FAQs
Donor C7 fibers provide axons that can regenerate through the surgical connection and toward damaged motor or sensory pathways. As these axons extend, they may reinnervate target muscles or support sensory recovery. Functional improvement therefore depends not only on establishing the connection, but also on successful axonal growth and the nervous system’s ability to adapt to the redirected signals.
The transferred fibers may no longer control the same functions they served originally, so the brain must learn to associate their activity with movement or sensation in the affected limb. This adaptation reflects cortical plasticity, the nervous system’s capacity to reorganize functional control. Studying this process helps explain why anatomical nerve repair alone may not determine the final outcome.
Recovery varies with the severity of the original nerve injury, the timing of surgery, the distance available for axonal growth, and the effectiveness of rehabilitation. These variables influence whether regenerating fibers reach appropriate targets and whether useful control develops afterward. Consequently, the presence of a successful surgical connection does not guarantee the same degree of movement or sensory improvement in every patient.
C7 nerve transfer introduces donor fibers as a reconstructive strategy for severe nerve injury, rather than relying only on the damaged system to recover spontaneously. The approach creates a route for axonal regeneration toward affected targets, while later neural adaptation supports functional control. Its value is therefore linked to both physical reconnection and the biological processes that follow it.
The operation requires precise microsurgical handling to connect selected donor C7 fibers with damaged nerves. An interposed nerve graft can bridge the donor and recipient pathways, creating a route for regenerating axons. The reconstruction must preserve the intended continuity between these structures, because later motor or sensory recovery depends on axons extending through the repair toward their targets.
C7 nerve transfer is considered in selected patients with severe nerve injury, particularly damage involving the brachial plexus. Suitability depends on clinical circumstances that affect the likelihood of useful regeneration and adaptation. Because injury severity and surgical timing influence recovery, the technique is not presented as a uniform solution for every patient with impaired limb movement or sensation.
Follow-up focuses on whether voluntary movement and sensation improve as regenerating axons reach relevant pathways and the nervous system learns the new control pattern. Rehabilitation is important because recovery depends partly on adaptation after reconnection. Outcomes therefore include functional changes rather than the surgical repair alone, with results varying according to regeneration, injury characteristics, timing, and rehabilitation.
Beyond reconstruction, the procedure provides a model for examining neural regeneration and cortical plasticity in humans. Researchers can study how axons extend after a nerve pathway is redirected and how the brain adapts when signals acquire new functional relationships. This links microsurgical repair with broader questions about nervous-system reorganization, recovery of function, and the limits of biological repair.