[Dorsocommissural flaps. Apropos of a clinical case].

Dorsocommissural flaps are pedicled flaps with retrograde flow, anastomosed to the dorsolateral vessels of the proximal phalanx of one of the two fingers adjacent to the site of the commissure flap. The authors describe the anatomical basis and operating technique. A clinical case illustrates the simplicity and reliability of the technique. The indications for these flaps are digital skin defects either palmar involving the proximal phalanx and metacarpophalangeal joint, or dorsal involving the middle phalanx and the distal interphalangeal joint.