Transfer of pronator teres (PT) to extensor carpi radialis brevis (ECRB), transfer of flexor carpi radialis (FCR) to extensor digitorum communis (EDC), and transfer of palmaris longus (PL) to rerouted extensor pollicis longus (EPL). A and B, Volar and dorsal incisions used in combination of transfers. Note short transverse incisions over thumb metacarpal joint dorsally and wrist volarly used in rerouting EPL. C, FCR transfer to EDC. FCR motor tendon attachment at 45-degree angle into recipient tendon. D, Transfer of PT into more centralized ECRB. PT insertion is harvested with 2- to 3-cm periosteal extension strip. E and F, Transfer of PL to rerouted EPL. By rerouting EPL out of its third extensor compartment, combination of thumb abduction and extension can be achieved. SEE TECHNIQUE 71.17