PROBLEM TO BE SOLVED: To provide a new system for easily realizing bone surgery such as osteosynthesis surgery, joint replacement surgery, and spinal surgery in accordance with a preoperative plan. A support device for bone surgery of the present invention includes a storage unit, a diagnostic image acquisition unit, a fusion unit, and an output unit, and the storage unit is a two-dimensional reconstruction of a preoperative plan for a bone affected part of a patient. The image is stored, and the two-dimensional reconstructed image of the preoperative plan is a two-dimensional reconstructed three-dimensional simulation image showing the reduction position of the affected part of the bone and the installation position of the fixing material that fixes the reduction position. The image, the diagnostic image acquisition unit acquires an intraoperative diagnostic two-dimensional image of a bone affected part of the patient during surgery, the fusion unit, the two-dimensional reconstructed image and the intraoperative diagnostic two-dimensional image, both. Is corrected so that the size, position, and direction of the two coincide with each other to generate a fusion image in which the two-dimensional reconstructed image and the intraoperative diagnostic two-dimensional image are overlaid, and the output unit outputs the fusion image. It is characterized by [Selection diagram]【課題】 骨接合手術、関節置換手術、脊椎手術等の骨部手術を術前計画に沿って容易に実現するための新たなシステムの提供を目的とする。【解決手段】 本発明の骨部手術の支援装置は、記憶部、診断画像取得部、融合部、および出力部を含み、前記記憶部は、患者の骨患部に対する術前計画の二次元再構成画像を記憶し、前記術前計画の二次元再構成画像が、前記骨患部の整復位と前記整復位を固定する固定材の設置位置とを示す三次元シミュレーション画像を、二次元に再構成した画像であり、前記診断画像取得部は、術中の前記患者の骨患部の術中診断二次元画像を取得し、前記融合部は、前記二次元再構成画像と前記術中診断二次元画像とを、両者の大きさ、位置および方向が一致するように補正して、前記二次元再構成画像と前記術中診断二次元画像とがオーバーレイした融合画像を生成し、前記出力部は、前記融合画像を出力することを特徴とする。【選択図】 図１
