Biceps-to-triceps transfer. A, Transverse incision across antecubital fossa. B, Longitudinal incision along medial intermuscular septum. C, Musculocutaneous nerve adjacent to biceps tendon. D, Elbow flexion and forearm supination to facilitate dissection of biceps tendon to insertion. E, Ulnar nerve identified through a medial incision. F, Triceps split over tip of olecranon and a self-retaining retractor between the incised tendon. G, Unicortical hole drilled from tip of olecranon to posterior or posterolateral cortex. H, Biceps tendon passed from anterior incision to medial incision. I, Biceps tendon passed obliquely through medial portion of triceps tendon using a tendon braider. J, Two small holes are drilled through opposite posterior cortex through the unicortical hole to accept the suture passer. K, Elbow extended and biceps tendon advanced into unicortical tunnel. SEE TECHNIQUE 71.19