Single-stage reconstruction of the flexor mechanism of the fingers with a free vascularized tendon flap: case report.

The reconstruction of the flexor tendon in zones I and II of a ring finger in a single stage, using a free vascularized tendon graft, is reported in a single clinical case. The flexor digitorum superficialis (FDS) tendon of the same finger was freely transferred based on a vascular branch off the ulnar vessels. The ulnar artery was reconstructed with an end-to-end anastomosis, and the free flap was connected to the superficial palmar arch. The functional result was satisfactory.