Thumb Reconstruction Using Foucher's Flap

Extensive pulp defects of the thumb, with the exposure of tendon or bone, are challenging reconstructive problems. Surgical treatment includes the use of local, regional, and free flaps.

This paper is focused in Foucher's neuro vascular flap. First DMCA or Foucher's pedicle flap is a successful thumb reconstruction method, especially in patients not disturbed by its cosmetic appearance.

The first dorsal metacarpal artery (FDMCA) arises from the radial artery in the first intermetacarpal space, just distal to the tendon of the extensor pollicis longus. Pulp area of the thumb is the area where Foucher's flap is more utilizable. This technique has other applications such as first web reconstruction, thumb lengthening, and following resection of tumors on the dorsum of the hand.

We have in study 7 cases with work related trauma in two years period of time, between 2012 and 2014. We had only one partial flap survival and all the other flaps survived entirely. We have also taken in consideration subjective satisfaction with a range score from 4 to 10, cold intolerance, flap area and donor site sensibility with a range score from low to medium to normal.

Careful pedicle discovery, secured elevation, pedicle strangulation prevention are very important for flap survival.