An orthopedic brace designed for rehabilitation of joints of the human body, the brace comprises at least one upright associated with at least one articulated coupling, wherein a bar 21 forms a part of this at least one upright. The bar 21 comprises a plurality of aligned holes 23 and a sliding elongated element 22 comprising coupling means (25, 26) for the fixing straps of the brace. In addition, this elongated element is equipped with restraining means (32) associated with the holes (23) and with a cursor (22) that can be moved in order to move the elongated element from a blocked position to an unblocked position with respect to the bar (21). The bar (21) presents a curvature wherein the concavity has a curvature radius on the longitudinal axis, facing the inside of the brace.
