Truncated cone arthrodesis. A, Preparation of phalangeal base with end-cutting reamer. B, Metatarsal angle guide for reaming. C, Cutting truncated cone with side-cutting reamer. D, Base of proximal phalanx after reaming. (From Johnson KA, editor: Master techniques in orthopaedic surgery: the foot and ankle, New York, 1994, Raven.) SEE SEE TECHNIQUE 82.18.