Bilateral Foot Drop Treated with Posterior Tibial Tendon Transfer: A Case Report

Drop foot is characterized by presenting gait alterations due to the inability to dorsiflex the ankle. Neurological and muscular etiology can cause foot drop. Tendon transfer surgery represents the gold standard of surgical treatment. Clinical case: 15-year-old female patient with a history of congenital common peroneal nerve paralysis. The first surgical stage is performed on the left foot, tendon transfer is performed with the classic Barr's technique, the posterior tibial tendon is disinserted by crossing the interosseous membrane and inserting in a lateral cuneiform. The second surgical procedure was performed 9 months after the first surgery with tendon transfer of the right foot, the procedure began with the classic Barrs technique, with insertion of the posterior tibial tendon in the medial cuneiform of the right foot and fixation with the use of a biotenodesis screw. Discussion: Drop foot is a pathology characterized by alterations in the anterior tibial tendon. The causes of drop foot are described as neurological and muscular causes. Management with transfer of the posterior tibial tendon is the surgical management of choice, it should be considered when conservative management fails.