The hatchet flap for reconstruction of fingertip amputations.

Background: Emmett has described a single triangular flap that contains a partial skin bridge on one of its sides and called it the hatchet flap. It was successfully used for defects located on various body parts. The aim of this study was to present the authors' experience and results obtained with this flap in fingertip amputations.

Methods: Nine patients who have completed their 1-year follow-up period were included in the study. Two-point discrimination and stiffness were tested, and the patients were queried about the existence of cold intolerance, hypersensitivity, numbness, and pain in the early (3 months) and late (1 year) postoperative periods.

Results: The amputations were located on the thumb in three patients, index finger in one patient, middle finger in three patients, and ring finger in two patients. The average defect size was 2.1 x 1.5 cm. Partial wound dehiscence was observed in one patient. The flap has provided good protective padding and aesthetic contour for the fingers. All incisions healed with inconspicuous scars. Average two-point discrimination was 6.3 mm (range, 4 to 8 mm). Cold intolerance was observed in two (22.2 percent) and paresthesia in one patient (11.1 percent). Joint stiffness was not noted. Most patients could return to their normal routine in approximately 4 to 5 weeks.

Conclusions: The hatchet flap is a good alternative for transverse and lateral oblique fingertip amputations and valuable for volar oblique amputations (defects <2 cm) with more extensive flap designs. The technique is simple and safe and provides good protective padding and acceptable tactile gnosis.