Reverse-Flow Lateral Tarsal Island Flap for Covering the Great Toe Donor Site of Wraparound Flap

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Abstract

Background

Coverage of the great toe donor site of wraparound flap remains a challenge. This report presents the results of using an innervated pedicled reverse-flow lateral tarsal island flap for covering the great toe donor site of wraparound flap.

Patients and Methods

Between 2005 and 2010, 11 reverse-flow lateral tarsal island flaps were used to cover the great toe donor site of wraparound flap in 11 patients. This pedicled flap designed on the lateral tarsal area of foot was based distally on the dorsalis pedis artery; the lateral dorsal pedal cutaneous nerve was incorporated into the reverse-flow lateral tarsal island flap and coapted with the first plantar digital nerve. The donor sites of reverse-flow lateral tarsal island flap were covered with inguinal full-thickness skin grafts.

Results

All flaps achieved primary healing except for two that suffered from mild venous insufficiency which was managed by conservative intervention. All skin grafts covering the donor site of reverse-flow lateral tarsal island flap healed uneventfully. The mean follow-up was 24 months (range, 18–48 months). The mean hallux metatarsophalangeal-interphalangeal scale score was 92 points (range, 85–97 points) at 6 months postoperatively. The static 2-point discrimination of the reverse-flow lateral tarsal island flap ranged from 6 to 14 mm (mean 10 mm). None of the patients were restricted in standing or walking during follow-up.

Conclusions

The reverse-flow lateral tarsal island flap based distally on the dorsalis pedis artery has a constant pedicle that is sufficiently long. This innervated pedicle flap is a reliable option to cover the great toe donor site of wraparound flap with satisfactory functional and cosmetic results and acceptable donor site morbidity.

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