Dynamic approach to thumb-in-palm deformity. A, Release of adduction contracture through Z-plasty first web incision (see text). B, Transfer of palmaris longus to intact abductor pollicis longus, which has been released from first dorsal compartment. C, Transfer of distal portion of tendon of abductor pollicis longus to flexor carpi radialis, so-called dynamic tenodesis, and transfer of proximal segment of abductor pollicis longus into extensor pollicis brevis. D, Chondrodesis of thumb metacarpophalangeal joint for hyperextension deformity. SEE TECHNIQUE 72.10.