An orthopedic orthosis or brace designed for rehabilitation of joints of the human body, such as the knee, the elbow, the ankle, the shoulder or similar, comprises a pair of hinged joints (11, 12) acting as supports for relative pairs of femoral (13, 15) and tibial (14, 16) uprights, the ends of these uprights opposite the hinged joints being attached to restraining arches (17, 18) acting as connecting elements for building up the frame of the orthosis which is fixed to the limb by means of a series of flexible type anchoring straps (19) attached to the uprights. The restraining arches (17, 18) are fitted at the ends of the respective uprights (13, 14, 15, 16) by means of the interposition of an elastic type joint (20), which determines an elastic restraint between the arches (17, 18) and the uprights, allowing the arches to perform limited angular travels with respect to the uprights around the axis of the hinged joints. Said joint (20) comprises housings (21, 22) respectively positioned at the ends of each upright and at the ends of each restraining arch, each of the housings containing shaped slots (23), cut in the edge of the housing, which represent restraining elements for an elastic connection element (24), or flexible coupling, positioned between the housings.
