Nontubulation Repair of Peripheral Nerve Gap Using Heparin/Alginate Gel Combined with b-FGF.
Plastic and reconstructive surgery. Global open(2016)
Abstract
All artificial nerve grafts have a tubular structure, and they guide axonal regrowth through the tube from the proximal side toward the peripheral side. Based on the results of our experimental study using animals, we used alginate gel without a tubular structure as an artificial nerve graft for digital nerve repair and evaluated peripheral nerve regeneration. In 2 patients, a gap due to digital nerve injury was bridged with controlled-release heparin/alginate gel combined with basic fibroblast growth factor, and restoration of the sensory function was serially evaluated. In both patients, Tinel's sign appeared 3-4 weeks after the operation, and sensory recovery to the fingertip was achieved at 6 months postoperatively. Our results suggest that even gel without a tubular structure provides a site for peripheral nerve regeneration.
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