Anatomic basis of pronator quadratus flap.

The pronator quadratus m. can be raised as a flap on its main anterior interosseous pedicle, whose characteristics are as follows: diameter of the artery 2.1 mm, diameter of the each of both veins 2.4 mm, length of useful pedicle 70-80 mm, after possible intraneural dissection of the nerves to the flexor pollicis longus m.