Publication details

A Comparison of Collateral Sprouting of Sensory and Motor Axons after End-to-Side Neurorrhaphy with and without the Perineurial Window

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Authors

HANINEC Pavel KAISER Radek DUBOVÝ Petr

Year of publication 2012
Type Article in Periodical
Magazine / Source PLASTIC AND RECONSTRUCTIVE SURGERY
MU Faculty or unit

Faculty of Medicine

Citation
Web http://ovidsp.tx.ovid.com/sp-3.8.0b/ovidweb.cgi?QS2=434f4e1a73d37e8ca660ba86a20a7609e99d83a2f42aa468f61e199fe973b2684db8a4bdd8ddd7bdda678a4ab034a7297e5390f4147aa44c0a1d10f30c8662650b4cb637275d87e654e95d508822b1e0f1e8e25c57ba0c16ba0456718958ead54ccb7f68bc
Doi http://dx.doi.org/10.1097/PRS.0b013e31825dc20a
Field Neurology, neurosurgery, neurosciences
Keywords PERIPHERAL-NERVE REPAIR; LONG-TERM EVALUATION; RAT BRACHIAL-PLEXUS; TERMINOLATERAL NEURORRHAPHY; MUSCULOCUTANEOUS NERVE; EXPERIMENTAL-MODEL; REGENERATION; INJURY; ANASTOMOSIS; RECOVERY
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Description Background: Many experimental studies have confirmed collateral sprouting of axons after end-to-side neurorrhaphy and its possible clinical application. There is still controversy about how the surgical method should be carried out. The aim of the present study was to quantitatively evaluate collateral sprouting of motor and sensory axons after end-to-side neurorrhaphy with and without the perineurial window. Methods: End-to-side neurorrhaphy of the distal stump of transected musculocutaneous nerve with intact ulnar nerve with or without a perineurial window was performed in a rat model. Collateral sprouts were quantitatively evaluated by counting of motor and sensory neurons following their retrograde labeling by Fluoro-Ruby and Fluoro-Emerald applied to the ulnar and musculocutaneous nerves, respectively. Results: Our results show that significantly more motor and sensory axons sent their collateral branches into the recipient nerve in the group with a perineurial window. Some axons were injured during preparation of the perineurial window; the injured axons reinnervated directly into the recipient nerve to contribute to results of functional reinnervation. Conclusion: The authors conclude that it is necessary to create a perineurial window when using end-to-side neurorrhaphy in clinical practice, especially in brachial plexus reconstruction. (Plast. Reconstr. Surg. 130: 609, 2012.)
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