Abstract: A halo adapted to enclose the forehead and temples of a patient including at least two frontotemporal bars (1) which are joined to each other, and two half-arches (2) which are joined to each other and are fixed connected with the frontotemporal bars, the joined half-arches forming an arch enclosing the posterosuperior zone of the cranium of the patient. The frontotemporal bars (1) and the half-arches (2) are interconnected through bars (4, 5) overlapping the contiguous ends of the former. The mutually facing portions of the frontotemporal bars, the half-arches and the interconnecting bars include orifices (7, 8, 9, 10, 11, 12) facilitating rigid fastening together thereof by assembly screws (6). At least some of the orifices of the interconnecting bars, the frontotemporal bars, and the half-arches being oblong slots (7, 8, 12), facilitating adapting the dimensions of the halo to the morphology of the cranium of the patient.