The present invention relates to devices for manipulation of bones and their associated soft-tissue structures including joints, muscles, tendons, ligaments, and nervous tissues. The devices use articulated arms that attach to bone and soft tissue to properly align bone and soft tissue for fixation. Locking members attached to the articulated arms are activated by buttons or switches to unlock the articulated arms for adjustment of the position of an attached bone and to lock the articulated arms for holding an attached bone in a stable position.
