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  • Title: Sensory reconstruction in sensate radial forearm flap transfer.
    Author: Yamauchi T, Yajima H, Kizaki K, Kobata Y, Fukui A, Tamai S.
    Journal: J Reconstr Microsurg; 2000 Nov; 16(8):593-5. PubMed ID: 11127280.
    Abstract:
    The authors treated 14 patients (13 men and one woman), using a sensate radial forearm flap. Their ages at operation ranged from 27 to 67 years (mean: 52 years). Preoperative conditions were amputations in 10 cases, degloving injury in three, and crush injury in one. Reconstructive sites involved the thumb in nine cases, the mitten-like hand in two, the index finger in one, the ring and small finger in one, and the palm in one. In all cases, the radial forearm flap, including the lateral antebrachial cutaneous nerve, was harvested. Sensory evaluation was performed using the moving two-point discrimination test (m-2PD). Sensation in the mid-palmar area of 50 forearms was examined in 25 healthy adult volunteers as a control group. Follow-up periods ranged from 12 to 87 months (mean: 39.6 months). The mean m-2PD of the 14 sensory flaps was 13.2 mm, and the mean of 50 forearms in the control group was 18.08 mm. A statistically significant difference was demonstrated between the sensory flaps and the 50 forearms of the control group. The mean m-2PD was much more sensitive in the innervated radial forearm flaps than in the donor forearm. The results suggested that sensory return in the innervated flaps is influenced not by the donor nerve in the flaps, but by the recipient digital nerve.
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