Modulation of the visceromotor reflex by a lumbosacral ventral root avulsion injury and repair in rats.
RatOtherSprague-DawleyFemaleSurgicalAcute, at the time of avulsion injury
Model: Unilateral L6-S1 ventral root avulsion (cauda equina injury)
Avulsion prolonged the visceromotor reflex to bladder filling. Acute reimplantation normalised external oblique EMG duration by 3 weeks (versus persistent prolongation after avulsion alone) and limited increased bladder contraction duration to week 1 only, indicating earlier sensory recovery.
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