Transfer of obturator nerve for femoral nerve injury: an experiment study in rats

Transfer of obturator nerve for femoral nerve injury: an experiment study in rats Background Quadriceps palsy is mainly caused by proximal lesions in the femoral nerve. The obturator nerve has been previ- ously used to repair the femoral nerve, although only a few reports have described the procedure, and the outcomes have varied. In the present study, we aimed to confirm the feasibility and effectiveness of this treatment in a rodent model using the randomized control method. Methods Sixty Sprague–Dawley rats were randomized into two groups: the experimental group, wherein rats underwent femoral neurectomy and obturator nerve transfer to the femoral nerve motor branch; and the control group, wherein rats underwent femoral neurectomy without nerve transfer. Functional outcomes were measured using the BBB score, muscle mass, and histological assessment. Results At 12 and 16 weeks postoperatively, the rats in the experimental group exhibited recovery to a stronger stretch force of the knee and higher BBB score, as compared to the control group (p < 0.05). The muscle mass and myofiber cross-sectional area of the quadriceps were heavier and larger than those in the control group (p < 0.05). A regenerated nerve with myelinated and unmyelinated fibers was observed in the experimental group. No significant differences were observed between groups at 8 weeks http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acta Neurochirurgica Springer Journals

Transfer of obturator nerve for femoral nerve injury: an experiment study in rats

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Austria, part of Springer Nature
Subject
Medicine & Public Health; Neurosurgery; Interventional Radiology; Neuroradiology; Neurology; Surgical Orthopedics; Minimally Invasive Surgery
ISSN
0001-6268
eISSN
0942-0940
D.O.I.
10.1007/s00701-018-3565-1
Publisher site
See Article on Publisher Site

Abstract

Background Quadriceps palsy is mainly caused by proximal lesions in the femoral nerve. The obturator nerve has been previ- ously used to repair the femoral nerve, although only a few reports have described the procedure, and the outcomes have varied. In the present study, we aimed to confirm the feasibility and effectiveness of this treatment in a rodent model using the randomized control method. Methods Sixty Sprague–Dawley rats were randomized into two groups: the experimental group, wherein rats underwent femoral neurectomy and obturator nerve transfer to the femoral nerve motor branch; and the control group, wherein rats underwent femoral neurectomy without nerve transfer. Functional outcomes were measured using the BBB score, muscle mass, and histological assessment. Results At 12 and 16 weeks postoperatively, the rats in the experimental group exhibited recovery to a stronger stretch force of the knee and higher BBB score, as compared to the control group (p < 0.05). The muscle mass and myofiber cross-sectional area of the quadriceps were heavier and larger than those in the control group (p < 0.05). A regenerated nerve with myelinated and unmyelinated fibers was observed in the experimental group. No significant differences were observed between groups at 8 weeks

Journal

Acta NeurochirurgicaSpringer Journals

Published: May 28, 2018

References

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