抄録
Four patients who underwent thumb reconstruction surgery using reverse radial midpalmar island flaps between May 2017 and July 2018 were retrospectively investigated. Elevated flap sizes ranged from 2.6×1.0 cm to 3.0×1.5 cm, and the mean age of the patients was 52.5 years old（range 18 to 76）. Although two flaps required bloodletting for a few days for postoperative congestion, all flaps survived. After a mean 7.8 months of follow-up, the mean static and moving two-point discriminations were 9.8 mm and 7.5 mm, respectively. For one patient, additional surgery for release of first web scar contracture was required. This flap, which uses similar tissue to the fingertip region, results in a preferable appearance with good fingertip function, and is a useful procedure for thumb finger-pulp reconstruction.
