A new technique for the treatment of flexor digitorum profundus tendon avulsion

Abstract

Current treatment of flexor digitorum profundus (FDP) avulsion with complex external wire or button fixation is associated with significant morbidity. A new method of internal fixation avoids the complications that are associated with previous techniques. Through a volar Bruner incision, the profundus tendon is retrieved. A transverse dorsal incision is made and two holes are drilled. A double-arm suture is passed through the tendon and bone, and is tied dorsally. Both incisions are closed, leaving the repair entirely internal. This simple technique produces a solid reinsertion of the FDP tendon and avoids damage to the nail bed and matrix. Internal fixation eliminates nail plate deformities, reduces cost, speeds recovery, and produces a stable reconstruction.