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Functional recovery and mechanisms in end-to-side nerve repair in rats

Dahlin, Lars LU ; Bontioti, E; Kataoka, K and Kanje, M (2007) In Acta Neurochirurgica. Supplementum 100. p.93-95
Abstract
BACKGROUND: End-to-side nerve repair is attachment of a single distal nerve segment (recipient nerve) end-to-side to an intact donor nerve when there is a lack of proximal nerve segment after injury. The technique is currently used clinically but the mechanism(s) behind this technique are essentially unknown. METHODS: We have studied end-to-side nerve repair in the forelimb of rats, where a single distal radial nerve or an ulnar or a median, or both, nerves are attached end-to-side to an intact musculocutaneous nerve. We have studied functional recovery, origin of the regenerating axons and cell activation by the end-to-side nerve repair. FINDINGS: Functional recovery occurs after end-to-side nerve repair but is less sufficient than... (More)
BACKGROUND: End-to-side nerve repair is attachment of a single distal nerve segment (recipient nerve) end-to-side to an intact donor nerve when there is a lack of proximal nerve segment after injury. The technique is currently used clinically but the mechanism(s) behind this technique are essentially unknown. METHODS: We have studied end-to-side nerve repair in the forelimb of rats, where a single distal radial nerve or an ulnar or a median, or both, nerves are attached end-to-side to an intact musculocutaneous nerve. We have studied functional recovery, origin of the regenerating axons and cell activation by the end-to-side nerve repair. FINDINGS: Functional recovery occurs after end-to-side nerve repair but is less sufficient than conventional end-to-end nerve repair or a nerve graft procedure. Sensory and motor axons grow from the musculocutaneous nerve out into the attached nerve segment(s). An injury is required to the musculocutaneous nerve to activate sensory and motor neurons as well as Schwann cells in the musculocutaneous nerve for initiation of regeneration. CONCLUSIONS: End-to-side nerve repair may be an alternative method in specific cases of complex nerve injuries to reconstruct nerve trunks when no other repair options are possible. Some functional recovery does occur but regeneration of sensory and motor axons require an injury to the neurons of the donor nerve. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Acta Neurochirurgica. Supplementum
volume
100
pages
93 - 95
publisher
Springer
external identifiers
  • pmid:17985554
  • wos:000271635700020
  • scopus:38449095429
ISSN
0065-1419
DOI
10.1007/978-3-211-72958-8
language
English
LU publication?
yes
id
9cf11866-2f8c-4589-a4be-234cd481d30c (old id 1140692)
date added to LUP
2008-08-14 15:43:54
date last changed
2017-08-27 05:31:01
@article{9cf11866-2f8c-4589-a4be-234cd481d30c,
  abstract     = {BACKGROUND: End-to-side nerve repair is attachment of a single distal nerve segment (recipient nerve) end-to-side to an intact donor nerve when there is a lack of proximal nerve segment after injury. The technique is currently used clinically but the mechanism(s) behind this technique are essentially unknown. METHODS: We have studied end-to-side nerve repair in the forelimb of rats, where a single distal radial nerve or an ulnar or a median, or both, nerves are attached end-to-side to an intact musculocutaneous nerve. We have studied functional recovery, origin of the regenerating axons and cell activation by the end-to-side nerve repair. FINDINGS: Functional recovery occurs after end-to-side nerve repair but is less sufficient than conventional end-to-end nerve repair or a nerve graft procedure. Sensory and motor axons grow from the musculocutaneous nerve out into the attached nerve segment(s). An injury is required to the musculocutaneous nerve to activate sensory and motor neurons as well as Schwann cells in the musculocutaneous nerve for initiation of regeneration. CONCLUSIONS: End-to-side nerve repair may be an alternative method in specific cases of complex nerve injuries to reconstruct nerve trunks when no other repair options are possible. Some functional recovery does occur but regeneration of sensory and motor axons require an injury to the neurons of the donor nerve.},
  author       = {Dahlin, Lars and Bontioti, E and Kataoka, K and Kanje, M},
  issn         = {0065-1419},
  language     = {eng},
  pages        = {93--95},
  publisher    = {Springer},
  series       = {Acta Neurochirurgica. Supplementum},
  title        = {Functional recovery and mechanisms in end-to-side nerve repair in rats},
  url          = {http://dx.doi.org/10.1007/978-3-211-72958-8},
  volume       = {100},
  year         = {2007},
}