Coverage of Soft-Tissue Defects of the Palm of the Hand: Introduction of a New Flap Design

Abstract

The palm is of great importance for maintaining a functioning hand. The reconstructive demands of thickness, texture, color matching, pliability, and sensation for palmar defects represent a unique challenge for plastic surgeons. This study introduced a novel versatile design for the ulnar palmar artery perforator flap (UPAPF) to cover large palmar soft-tissue defects of the hand. The fifth metacarpophalangeal joint was identified as a landmark where the perforator was nearly 1 to 1.5 cm proximal. A template of the defect was outlined after adequate debridement. Meticulous dissection was executed under loupe magnification to trace the perforator until an adequate length of the pedicle was obtained for rotation. The harvested type B fasciocutaneous flap was rotated nearly 90° to be insetting on the palmar defect. Two patients were presented with a soft-tissue defect of the palm measuring 4.8 × 5.5 cm² and 3.8 × 5 cm², respectively. The flap was harvested and positioned at the defects. The flaps survived in the 2 cases with minimal donor site complications. The patients acquired protective sensations within the flap at the end of the follow-up period. The UPAPF provides a stable coverage for palmar soft-tissue defects with satisfactory aesthetic and functional results. It is a convenient addition to the armamentarium for reconstructing palmar soft-tissue defects of the hand.