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Interphalangeal joint arthrodesis implant. A sterile implantable device designed to be inserted across a toe or finger interphalangeal joint, into the contiguous phalanges, to fuse the joint (arthrodesis), typically to correct joints damaged by traumatic, degenerative or rheumatoid arthritis, or other deformities (e.g., hammer toe), or for arthroplasty revision. It is made of metal [(e.g., stainless steel, nickel-titanium alloy (Nitinol)]) and can be of several geometric shapes (e.g., a small rod with barbs at each end, or X-shaped); devices associated with implantation may be included.