Related Experiment Video
Updated: Jul 19, 2026

20:14
Combining Peripheral Nerve Grafting and Matrix Modulation to Repair the Injured Rat Spinal Cord
Published on: November 20, 2009
16.4K
Characterization of Spinal Cord Injury Patients for Arm Functional Restoration through Nerve Transfer
Andrew Jack1, Mithun Rajshekar2, Christopher D Witiw3
1Division of Neurosurgery, Department of Surgery, University of Alberta, Edmonton, AB, Canada.
Summary
Nerve transfers (NT) may benefit many patients with traumatic spinal cord injuries (tSCI). This study identified epidemiological and injury characteristics of tSCI patients suitable for NT, aiding in treatment selection.
Area of Science:
- Neurosurgery
- Regenerative Medicine
- Epidemiology
Background:
- Traumatic spinal cord injuries (tSCI) frequently cause irreversible debilitation.
- Novel strategies like nerve transfers (NT) are crucial for mitigating secondary damage and enhancing function.
- Limited epidemiological data exists for tSCI patients eligible for NT.
Purpose of the Study:
- To characterize the epidemiological and injury-related aspects of tSCI patients.
- To identify the number and types of tSCI individuals who could benefit from NT.
- To inform patient selection for NT interventions.
Main Methods:
- Adults (<80 years) with cervical tSCI (C1-T1) admitted between 2005-2019 were evaluated.
- Suitability for NT was determined by two independent peripheral nerve experts based on specific neurological criteria (donor MRC ≥ 4/5, recipient ≤ 2/5).
- Demographic, traumatic, and neurological variables were collected and analyzed.
Main Results:
- Out of 709 tSCI patients, 224 (32%) met initial selection criteria.
- 108 patients (15% of all tSCIs, 48% of cervical tSCIs) were identified as appropriate NT candidates.
- Patient eligibility for NT fluctuated over time due to neurological recovery or changes.
Conclusions:
- A significant proportion of individuals with cervical tSCI are potential candidates for NT.
- This study provides the first detailed analysis of tSCI patient numbers qualifying for NT from a large prospective database.
- Findings can guide the application of NT for improved functional outcomes in tSCI patients.
Related Concept Videos
Spinal Cord Injury ll: Pathophysiology
Spinal cord injury progresses through two interconnected phases: primary injury and secondary injury.Primary InjuryPrimary injury happens at the moment of trauma and involves immediate mechanical damage to the spinal cord.Compression happens when broken vertebrae, herniated discs, or accumulating blood (such as a hematoma) press directly against the spinal cord, distorting its normal shape and function. In cases of contusion, the cord is bruised by a blunt force (like penetrating injuries or...
Secondary Spinal Cord Injury llI: Pathophysiology
Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...

