Orthopaedic device for correcting deformities of a long bone, comprising a longitudinal bar, at least a first clamp and a second clamp, wherein the first clamp is placed on a support base and angularly movable in relation to the support base by means of a rotary coupling, wherein said rotary coupling comprises a male element associated with the first clamp, and a corresponding female element associated with the support base, wherein the first clamp comprises an upper jaw and a lower jaw closed between themselves by means of first locking screws, and two second screws (272) for angularly moving said first clamp (214) around the given rotation axis, wherein said two driving screws (272) are rotatingly operated together with opposite rotation directions for angular displacement, and are rotatingly operated with the same rotation direction to perform linear reciprocating movement.
