Abstract: Miniplate designed for the osteosynthesis of a phalange P1 (first phalange), comprising firstly an anchor and positioning stud (2) at one of its ends approximately perpendicular to the plate (1) and an adjacent attachment screw, designed to cooperate with the widest proximal end (4) of the phalange (5) and secondly at least one other attachment screw passing through a compression hole (7) in the said plate and designed to cooperate with a distal end (8) of the same phalange (5), characterised in that the miniplate has an anatomic profile in its frontal plane and in its sagittal plane.