An orthopedic device (10, 110) for correcting deformations of a long bone (11), comprising a longitudinal bar (12), extended along an axis (YY) and which is intended to be placed next to the bone (11) , at least a first fastener (14) for a first group of bone screws (16) and a second fastener (18, 19, 118) for a second group of bone screws (20, 22), the first being mounted and the second clamping element removable in said bar (12), in which the first clamping element (14) is placed on a support base (21) and can move angularly with respect to the support base around a rotation axis (XX) given by means of a rotary coupling, wherein said rotary coupling comprises a male element (35) associated with the first clamping element (14) and having an at least partially cylindrical surface, and a corresponding female element (36) associated with the base of s oportion (21) and having an at least partially cylindrical surface that constitutes a seat for the loose coupling of the male element (35), in which the first fastening element (14) comprises an upper jaw (37), which constitutes a removable cover of the first fastener (14), and a lower jaw (38) that constitutes a fixed base of the first fastener (14), closed together by means of the first locking screws (40, 41), a clamping screw (52) which allows said first clamping element (14) to move selectively angularly in relation to the support base (21) around the rotation axis (XX) given for an adjustment of the angular position of the first group of bone screws (16) in relation to the support base (21), said first locking screws (40, 41) being independent of said clamping screw (52), in which the male element is a projection cylindrical (35) extending from and the lower jaw (38), and in which the female element is a circular hole (36) that is associated with the support base (21) to admit the cylindrical projection, characterized in that the support base (21) is it mounts on said bar (12) and comprises a plate-shaped body with
