<prompt> Usual treatment s of fracture involving aicular surface isareAhrodesisExcisionSkeletal tractionAll of the above  <response>: A i.e. Ahrodesis; B i.e. Excision; C i.e. Skeletal traction Principles - Immobilization prolonged of intraaicular fractures result in joint stiffness; which is much greater if is treated by open reduction internal fixation. - Depressed aicular fragments, which do not reduce as a result of closed manipulation traction, are impacted will not reduce by close means. - Major aicular depression fragment displacements do not fill with fibrocailage and so the resulting instability is permanent. - Anatomical reduction and stable fixation of aicular fragments is necessary to restore joint congruity - Immediate motion is necessary to prevent joint stiffness and to ensure aicuar healing recovery. This stable internal fixation. - Lambottes priciples of surgical treatment of fractures include: anatomical reduction of fracture fragments stable internal fixation, preservation of blood supply and active pain free mobilization of adjacent muscle joints. 