The transplantation of the extensor indicis to restore the opposition of thumb has been realized by two techniques: — transplantation through the 2nd interosseous space with suture on the abductor pollicis brevis but the result was poor for the guide pulley resulting did not work well. — transplantation with reflexion on the cubital side of the wrist which in 5 cases proved to be satisfactory. In medico cubital paralysis one must also cure the “cubital claw of the thumb”. The surgical procedure, using a dispensable tendon, could be directly associated to the sutures of the proximal injuries of the cubital nerve as a temporary palliative.
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