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Analysis of the lesion side after finger trauma. Patient with a peripheral nerve defect of the ulnar nerve of the little finger (A) and bridging by a CNC. In this case, a peripheral nerve defect of approximately 9 mm is bridged by the CNC (Magnification A 2×). Schematic illustration of the tubulization technique for bridging the peripheral nerve defect with the CNC. Note the 2–3 mm overlap of CNC proximal and distal to allow guided sprouting of the axons via the conduit (B).
