The invention relates to an osteosynthesis pin (2), in particular for a fracture of a calcaneum, which includes a generally cylindrical hollow body (3) comprising an axial bore (4) extending over the entire length thereof, a plurality of through-holes (5) staggered longitudinally relative to one another and intended for attachment screws to pass therethrough, and at least one oblong opening (6) suitable for an ancillary instrument to pass therethrough for repositioning fractured bone fragments.
