Interference screw fixation for flexor hallucis longus tendon transfer for chronic Achilles tendonopathy.

Chronic Achilles tendinosis can be a challenging problem to the foot and ankle surgeon. Multiple surgical treatment options have been described for this condition including transfer of the Flexor Hallucis Longus (FHL) tendon for an incompetent Achilles tendon. Our technique describes FHL tendon transfer into the calcaneus to replace or supplement the Achilles tendon using a single posterior incision, a "short harvest" and interference screw fixation.