PROBLEM TO BE SOLVED: To provide an adhesion strength evaluation method safe with no anxiety.SOLUTION: The adhesion strength evaluation method includes a first photographing process for photographing an affected part in a state of applying no load to the affected part a second photographing process for photographing the affected part in a state of applying a load to the affected part a first detecting process for detecting a dimension between screws straddling an adhesion portion of the affected part and a dimension between screws in a sound portion of the affected part based on an image photographed in the first photographing process a second detecting process for detecting a dimension between the screws straddling the adhesion portion of the affected part and a dimension between the screws in the sound portion of the affected part based on an image photographed in the second photographing process a computing process for computing strain of the adhesion portion of the affected part and strain of the sound portion of the affected part based on the dimensions between the screws detected in the first and second detecting processes an evaluation process for evaluating the adhesion strength of a bone to be higher as the strain of the adhesion portion of the affected part computed in the computing process is closer to the strain of the sound portion of the affected part and a presentation process for presenting the adhesion strength of the bone evaluated in the evaluation process.COPYRIGHT: (C)2011,JPO&INPIT【課題】安心かつ安全な癒合強度評価方法を提供する。【解決手段】患部に荷重をかけない状態で患部を撮影する第1の撮影工程と、患部に荷重をかけた状態で患部を撮影する第2の撮影工程と、前記第1の撮影工程で撮影された画像に基づいて患部の癒合部位を跨ぐネジ間の寸法及び患部の健全部位にあるネジ間の寸法を検出する第1の検出工程と、前記第2の撮影工程で撮影された画像に基づいて患部の癒合部位を跨ぐネジ間の寸法及び患部の健全部位にあるネジ間の寸法を検出する第2の検出工程と、前記第1の検出工程及び前記第2の検出工程で検出されたネジ間の寸法に基づいて患部の癒合部位のひずみ及び患部の健全部位のひずみを計算する計算工程と、前記計算工程で計算された患部の癒合部位のひずみが患部の健全部位のひずみに近いほど前記骨の癒合強度が高いと評価する評価工程と、前記評価工程で評価された前記骨の癒合強度を提示する提示工程とを備える。【選択図】図1
