PROBLEM TO BE SOLVED: To provide an improved information processing device, an information processing method and an information processing program.SOLUTION: An information processing device includes a control unit for determining a height to fix a cup of an artificial hip joint of a patient based on a bone head center on a pair side which is an opposite side to an affected side of a hip joint of the patient, a tear mark lower end of the hip joint of the patient and a CE angle on the affected side of the hip joint of the patient.SELECTED DRAWING: Figure 8COPYRIGHT: (C)2020,JPO&INPIT【課題】改善された情報処理装置、情報処理方法及び情報処理プログラムを提供する。【解決手段】情報処理装置は、患者の股関節の患側とは反対側である対側の骨頭中心と、患者の股関節の涙痕下端と、患者の股関節の患側のＣＥ角とに基づいて、患者において人工股関節のカップを固定する高さを決定する制御部を備える。【選択図】図８
