limits permits covering substantially all the needs the particular choice of the angles and dimensions of the clip permits a very precise adaptation of the clip to the shape of the bone which renders ablation of the clip unnecessary when the bone is consolidated moreover this clip has no tendency to limit the movement of the ankle because it provides no abutment at the radiocarpal intra articular site the invention also relates to the ancillary apparatus for emplacing the clip this ancillary apparatus comprises a spacer 10 fig3 and 4 adapted in the case of a carpal scaphoid fracture to be introduced between the scaphoid and the radius so as to produce a drawing together of the two bone segments the spacer 10 comprises a sleeve 11 terminating in a concave spoon 12 connected by a taper 13 the spoon 12 comprises a longitudinal throat 14 the surgeon then selects as a function of the dimensions of the bone an aimer 20 fig5 and 6 the aimer comprises a sleeve 21 terminating in an end 22 inclined relative to the sleeve 21 at an angle equal to the angle u03b1 of the clip 1 the aimer 20 comprises on opposite sides of the terminal bend two upper annular projections 23 and 24 whose bores 25 and 26 respectively open into a lower semi circular hollow 27 the inclination and spacing of the bores 25 and 26 correspond in combination with the shape of the lower surface of the viewer to the dimensions of the clip to be implanted the lower surface of viewer moreover comprises teeth 28 preventing slipping on the bone the surgeon after emplacing the aimer pierces a first securement.