Vascularized versus Free Nerve Grafts: An Experimental Study on Rats

Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experi...
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Autor*in:	Giuseppe Giglia [verfasserIn] Fernando Rosatti [verfasserIn] Antonino Giulio Giannone [verfasserIn] Giuditta Gambino [verfasserIn] Maria Grazia Zizzo [verfasserIn] Ada Maria Florena [verfasserIn] Pierangelo Sardo [verfasserIn] Francesca Toia [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	vascularized nerve grafts nerve grafts nerve regeneration nerve animal models peripheral nerves

Übergeordnetes Werk:	In: Journal of Personalized Medicine - MDPI AG, 2012, 13(2023), 12, p 1682
Übergeordnetes Werk:	volume:13 ; year:2023 ; number:12, p 1682

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.3390/jpm13121682

Katalog-ID:	DOAJ098841874

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allfields	10.3390/jpm13121682 doi (DE-627)DOAJ098841874 (DE-599)DOAJfb7cbc04ab1446999b31473874034bc7 DE-627 ger DE-627 rakwb eng Giuseppe Giglia verfasserin aut Vascularized versus Free Nerve Grafts: An Experimental Study on Rats 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. Conclusions: This experimental model showed slight differences in nerve regeneration between VNGs and FNGs, but cannot support a high clinical advantage for VNGs. The results of this study show that VNGs are not strongly superior to FNGs in the rat model, even in avascular beds. Clinical advantages of VNGs are likely to be limited to extensive and thick nerve defects and can only be assessed on experimental model with bigger animals. Also, we showed that the MUNE technique provided a reliable and reproducible evaluation of functional outcomes in the rat sciatic nerve and defined a reproducible protocol for functional evaluation of muscle reinnervation. vascularized nerve grafts nerve grafts nerve regeneration nerve animal models peripheral nerves Medicine R Fernando Rosatti verfasserin aut Antonino Giulio Giannone verfasserin aut Giuditta Gambino verfasserin aut Maria Grazia Zizzo verfasserin aut Ada Maria Florena verfasserin aut Pierangelo Sardo verfasserin aut Francesca Toia verfasserin aut In Journal of Personalized Medicine MDPI AG, 2012 13(2023), 12, p 1682 (DE-627)71862713X (DE-600)2662248-8 20754426 nnns volume:13 year:2023 number:12, p 1682 https://doi.org/10.3390/jpm13121682 kostenfrei https://doaj.org/article/fb7cbc04ab1446999b31473874034bc7 kostenfrei https://www.mdpi.com/2075-4426/13/12/1682 kostenfrei https://doaj.org/toc/2075-4426 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 12, p 1682
spelling	10.3390/jpm13121682 doi (DE-627)DOAJ098841874 (DE-599)DOAJfb7cbc04ab1446999b31473874034bc7 DE-627 ger DE-627 rakwb eng Giuseppe Giglia verfasserin aut Vascularized versus Free Nerve Grafts: An Experimental Study on Rats 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. Conclusions: This experimental model showed slight differences in nerve regeneration between VNGs and FNGs, but cannot support a high clinical advantage for VNGs. The results of this study show that VNGs are not strongly superior to FNGs in the rat model, even in avascular beds. Clinical advantages of VNGs are likely to be limited to extensive and thick nerve defects and can only be assessed on experimental model with bigger animals. Also, we showed that the MUNE technique provided a reliable and reproducible evaluation of functional outcomes in the rat sciatic nerve and defined a reproducible protocol for functional evaluation of muscle reinnervation. vascularized nerve grafts nerve grafts nerve regeneration nerve animal models peripheral nerves Medicine R Fernando Rosatti verfasserin aut Antonino Giulio Giannone verfasserin aut Giuditta Gambino verfasserin aut Maria Grazia Zizzo verfasserin aut Ada Maria Florena verfasserin aut Pierangelo Sardo verfasserin aut Francesca Toia verfasserin aut In Journal of Personalized Medicine MDPI AG, 2012 13(2023), 12, p 1682 (DE-627)71862713X (DE-600)2662248-8 20754426 nnns volume:13 year:2023 number:12, p 1682 https://doi.org/10.3390/jpm13121682 kostenfrei https://doaj.org/article/fb7cbc04ab1446999b31473874034bc7 kostenfrei https://www.mdpi.com/2075-4426/13/12/1682 kostenfrei https://doaj.org/toc/2075-4426 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 12, p 1682
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allfieldsGer	10.3390/jpm13121682 doi (DE-627)DOAJ098841874 (DE-599)DOAJfb7cbc04ab1446999b31473874034bc7 DE-627 ger DE-627 rakwb eng Giuseppe Giglia verfasserin aut Vascularized versus Free Nerve Grafts: An Experimental Study on Rats 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. Conclusions: This experimental model showed slight differences in nerve regeneration between VNGs and FNGs, but cannot support a high clinical advantage for VNGs. The results of this study show that VNGs are not strongly superior to FNGs in the rat model, even in avascular beds. Clinical advantages of VNGs are likely to be limited to extensive and thick nerve defects and can only be assessed on experimental model with bigger animals. Also, we showed that the MUNE technique provided a reliable and reproducible evaluation of functional outcomes in the rat sciatic nerve and defined a reproducible protocol for functional evaluation of muscle reinnervation. vascularized nerve grafts nerve grafts nerve regeneration nerve animal models peripheral nerves Medicine R Fernando Rosatti verfasserin aut Antonino Giulio Giannone verfasserin aut Giuditta Gambino verfasserin aut Maria Grazia Zizzo verfasserin aut Ada Maria Florena verfasserin aut Pierangelo Sardo verfasserin aut Francesca Toia verfasserin aut In Journal of Personalized Medicine MDPI AG, 2012 13(2023), 12, p 1682 (DE-627)71862713X (DE-600)2662248-8 20754426 nnns volume:13 year:2023 number:12, p 1682 https://doi.org/10.3390/jpm13121682 kostenfrei https://doaj.org/article/fb7cbc04ab1446999b31473874034bc7 kostenfrei https://www.mdpi.com/2075-4426/13/12/1682 kostenfrei https://doaj.org/toc/2075-4426 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 12, p 1682
allfieldsSound	10.3390/jpm13121682 doi (DE-627)DOAJ098841874 (DE-599)DOAJfb7cbc04ab1446999b31473874034bc7 DE-627 ger DE-627 rakwb eng Giuseppe Giglia verfasserin aut Vascularized versus Free Nerve Grafts: An Experimental Study on Rats 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. Conclusions: This experimental model showed slight differences in nerve regeneration between VNGs and FNGs, but cannot support a high clinical advantage for VNGs. The results of this study show that VNGs are not strongly superior to FNGs in the rat model, even in avascular beds. Clinical advantages of VNGs are likely to be limited to extensive and thick nerve defects and can only be assessed on experimental model with bigger animals. Also, we showed that the MUNE technique provided a reliable and reproducible evaluation of functional outcomes in the rat sciatic nerve and defined a reproducible protocol for functional evaluation of muscle reinnervation. vascularized nerve grafts nerve grafts nerve regeneration nerve animal models peripheral nerves Medicine R Fernando Rosatti verfasserin aut Antonino Giulio Giannone verfasserin aut Giuditta Gambino verfasserin aut Maria Grazia Zizzo verfasserin aut Ada Maria Florena verfasserin aut Pierangelo Sardo verfasserin aut Francesca Toia verfasserin aut In Journal of Personalized Medicine MDPI AG, 2012 13(2023), 12, p 1682 (DE-627)71862713X (DE-600)2662248-8 20754426 nnns volume:13 year:2023 number:12, p 1682 https://doi.org/10.3390/jpm13121682 kostenfrei https://doaj.org/article/fb7cbc04ab1446999b31473874034bc7 kostenfrei https://www.mdpi.com/2075-4426/13/12/1682 kostenfrei https://doaj.org/toc/2075-4426 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 12, p 1682
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A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. 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author	Giuseppe Giglia
spellingShingle	Giuseppe Giglia misc vascularized nerve grafts misc nerve grafts misc nerve regeneration misc nerve animal models misc peripheral nerves misc Medicine misc R Vascularized versus Free Nerve Grafts: An Experimental Study on Rats
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topic_title	Vascularized versus Free Nerve Grafts: An Experimental Study on Rats vascularized nerve grafts nerve grafts nerve regeneration nerve animal models peripheral nerves
topic	misc vascularized nerve grafts misc nerve grafts misc nerve regeneration misc nerve animal models misc peripheral nerves misc Medicine misc R
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title	Vascularized versus Free Nerve Grafts: An Experimental Study on Rats
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title_full	Vascularized versus Free Nerve Grafts: An Experimental Study on Rats
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author_browse	Giuseppe Giglia Fernando Rosatti Antonino Giulio Giannone Giuditta Gambino Maria Grazia Zizzo Ada Maria Florena Pierangelo Sardo Francesca Toia
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title_sort	vascularized versus free nerve grafts: an experimental study on rats
title_auth	Vascularized versus Free Nerve Grafts: An Experimental Study on Rats
abstract	Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. Conclusions: This experimental model showed slight differences in nerve regeneration between VNGs and FNGs, but cannot support a high clinical advantage for VNGs. The results of this study show that VNGs are not strongly superior to FNGs in the rat model, even in avascular beds. Clinical advantages of VNGs are likely to be limited to extensive and thick nerve defects and can only be assessed on experimental model with bigger animals. Also, we showed that the MUNE technique provided a reliable and reproducible evaluation of functional outcomes in the rat sciatic nerve and defined a reproducible protocol for functional evaluation of muscle reinnervation.
abstractGer	Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. Conclusions: This experimental model showed slight differences in nerve regeneration between VNGs and FNGs, but cannot support a high clinical advantage for VNGs. The results of this study show that VNGs are not strongly superior to FNGs in the rat model, even in avascular beds. Clinical advantages of VNGs are likely to be limited to extensive and thick nerve defects and can only be assessed on experimental model with bigger animals. Also, we showed that the MUNE technique provided a reliable and reproducible evaluation of functional outcomes in the rat sciatic nerve and defined a reproducible protocol for functional evaluation of muscle reinnervation.
abstract_unstemmed	Background: Vascularized nerve grafts (VNGs) have been proposed as a superior alternative to free nerve grafts (FNGs) for complex nerve defects. A greater regenerative potential has been suggested by clinical and experimental studies, but conclusive evidence is still lacking. Methods: In this experimental study, 10 adult male Wistar rats received a non-vascularized orthotopic sciatic nerve graft on their right side, and a vascularized orthotopic sciatic nerve graft nerve on their left side. Functional outcome following nerve regeneration was evaluated through electrodiagnostic studies, target muscles weight and histomorphology, and data of VNGs and FNGs were compared. Results: The results of this study showed a significant difference in the motor unit number of Gastrocnemius Medialis (GM) estimated by MUNE in the VNG side compared to the FNG side. No other significant differences in axonal regeneration and muscle reinnervation were evident at either electrodiagnostic, histomorphology studies or muscle weight. Conclusions: This experimental model showed slight differences in nerve regeneration between VNGs and FNGs, but cannot support a high clinical advantage for VNGs. The results of this study show that VNGs are not strongly superior to FNGs in the rat model, even in avascular beds. Clinical advantages of VNGs are likely to be limited to extensive and thick nerve defects and can only be assessed on experimental model with bigger animals. Also, we showed that the MUNE technique provided a reliable and reproducible evaluation of functional outcomes in the rat sciatic nerve and defined a reproducible protocol for functional evaluation of muscle reinnervation.
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title_short	Vascularized versus Free Nerve Grafts: An Experimental Study on Rats
url	https://doi.org/10.3390/jpm13121682 https://doaj.org/article/fb7cbc04ab1446999b31473874034bc7 https://www.mdpi.com/2075-4426/13/12/1682 https://doaj.org/toc/2075-4426
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author2	Fernando Rosatti Antonino Giulio Giannone Giuditta Gambino Maria Grazia Zizzo Ada Maria Florena Pierangelo Sardo Francesca Toia
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