Technique for index ray amputation. A, Dorsal skin incisions planned with marking pen. Palmar skin incision can be outlined in matching zigzag fashion to reduce skin suture line contracture. B, Flexor digitorum superficialis and flexor digitorum profundus tendons severed proximal to lumbrical origin after isolation and division of appropriate neurovascular structures. C, First dorsal interosseous retained for insertion into radial base of middle finger proximal phalanx. D, Appearance after index ray amputation. SEE TECHNIQUE 19.10.