Sensory Reconstruction in Sensate Radial Forearm Flap Transfer

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Journal of the Korean Society for Surgery of the Hand 2001;10(2):131-136.
Published online November 30, 2001.

Kwang-Suk Lee, M.D., Seung-Bum Han, M.D., Dongwon Suh, M.D., Hyung-Sik Kim, M.D.

요측 전완부 감각 피판을 이용한 감각 재건

이광석·한승범·서동원·김형식

Abstract

Purpose : The sensory radial forearm flap is used to recover the soft tissue defect of hand and foot. The aim of this study is to evaluate the results after sensory reconstruction using sensate radial forearm flaps.
Materials and Methods : There were 9 cases of 8 patients (6 males and 2 females). The 7 cases of 6 patients were donated to foot, the 2 cases of 2 patients to hand. At operation, the ages of them ranged from 18 to 63 years (mean: 37.9 years). Sensory evaluation was performed using percentage(%) of responding area to the pinprick test and the static and moving two-point discrimination test (s-2PD and m-2PD).
Results : The mean percentage of responding area to the pin prick test was 48.5%. The mean s-2PD and m-2PD of recipient hands were 37.2 mm and 28.8 mm. The mean s-2PD and m-2PD of recipient feet were 46.7 mm and 45.0 mm. The mean s-2PD and m-2PD of controls were 23.5 mm and 19.7 mm.
Conclusion : All the recipients were less sensitive than the control, but the recipient hands more sensitive than the recipient feet. Although the small numbers were studied, the results suggested that the recovery of sensation in the innervated flaps was influenced by the recipient nerve. So the donor nerve seems to be selected as more sensitive and more distal nerve of donor site for better outcome.

Key Words: Sensate radial forearm flap, Recipient nerve, Sensory reconstruction

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