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Original Article
Online Published: 06 Apr 2016
 


A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats

Benjamin Richard Pulley, Tianyi David Luo, Jonathan C. Barnwell, Beth P. Smith, Thomas L. Smith, Zhongyu Li.


Abstract
Objectives: Autologous nerve grafting remains the gold standard for repair of peripheral nerve injuries. Its use, however, is limited by donor nerve availability and donor site morbidity. This is especially problematic after failure of an initial autograft that requires a repeat nerve graft, resulting in a second surgical site with associated morbidity. Based on the molecular differences in nerve degeneration in the proximal and distal segments after transection, we hypothesized that a chronically-denervated proximal stump may be viable for autologous nerve repair.
Methods: 20 Sprague-Dawley rats underwent right sciatic nerve excision and sural nerve transection. After 8 weeks, nerve repair was performed by harvesting the proximal segment of the sural nerve (n=10) or a fresh sural nerve (n=10) from the contralateral hind limb. Electrophysiological changes were analyzed to compare the fresh and denervated grafts.
Results: Electrophysiological testing demonstrated higher compound motor action potential in the denervated group compared to the fresh autograft group, however this difference was not statistically significant (p=0.117).
Conclusion: The proximal segment of a chronically-denervated sural nerve can be as effective as a fresh sural nerve for autologous repair of peripheral nerve injuries in a rodent model.

Key words: Delayed nerve repair, denervated graft, nerve autograft, proximal nerve stump


 
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How to Cite this Article
Pubmed Style

Pulley BR, Luo TD, Barnwell JC, Smith BP, Smith TL, Li Z. A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats. Hand Microsurg. 2016; 5(3): 124-129. doi:10.5455/handmicrosurg.215015

Web Style

Pulley BR, Luo TD, Barnwell JC, Smith BP, Smith TL, Li Z. A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats. https://handmicrosurgeryjournal.com/?mno=215015 [Access: June 27, 2026]. doi:10.5455/handmicrosurg.215015

AMA (American Medical Association) Style

Pulley BR, Luo TD, Barnwell JC, Smith BP, Smith TL, Li Z. A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats. Hand Microsurg. 2016; 5(3): 124-129. doi:10.5455/handmicrosurg.215015


Vancouver/ICMJE Style

Pulley BR, Luo TD, Barnwell JC, Smith BP, Smith TL, Li Z. A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats. Hand Microsurg. (2016), [cited June 27, 2026]; 5(3): 124-129. doi:10.5455/handmicrosurg.215015


Harvard Style

Pulley, B. R., Luo, . T. D., Barnwell, . J. C., Smith, . B. P., Smith, . T. L. & Li, . Z. (2016) A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats. Hand Microsurg, 5 (3), 124-129. doi:10.5455/handmicrosurg.215015


Turabian Style

Pulley, Benjamin Richard, Tianyi David Luo, Jonathan C. Barnwell, Beth P. Smith, Thomas L. Smith, and Zhongyu Li. 2016. A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats. Hand and Microsurgery, 5 (3), 124-129. doi:10.5455/handmicrosurg.215015


Chicago Style

Pulley, Benjamin Richard, Tianyi David Luo, Jonathan C. Barnwell, Beth P. Smith, Thomas L. Smith, and Zhongyu Li. "A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats." Hand and Microsurgery 5 (2016), 124-129. doi:10.5455/handmicrosurg.215015


MLA (The Modern Language Association) Style

Pulley, Benjamin Richard, Tianyi David Luo, Jonathan C. Barnwell, Beth P. Smith, Thomas L. Smith, and Zhongyu Li. "A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats." Hand and Microsurgery 5.3 (2016), 124-129. Print. doi:10.5455/handmicrosurg.215015


APA (American Psychological Association) Style

Pulley, B. R., Luo, . T. D., Barnwell, . J. C., Smith, . B. P., Smith, . T. L. & Li, . Z. (2016) A chronically-denervated versus a freshly-harvested autograft for nerve repair in rats. Hand and Microsurgery, 5 (3), 124-129. doi:10.5455/handmicrosurg.215015




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    Hand and Microsurgery, the official journal of Turkish Society for Surgery of Hand and Upper Extremity, is a peer-reviewed scientific journal published th ... Read more.



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