本研究主要在於人工髖關節植入物之模擬。人工髖關節的應用主要是在髖部位的股骨頸與股骨頭處有較大的骨折,或在髖臼上、股骨頭、股骨頸、股骨、大小轉子部位有惡性腫瘤,或患有AVN症即股骨頭之半徑小於髖臼的病患。人工植入物亦能還原在股骨頭與髖臼間的異位並導正股骨頭頭與髖臼間的間隔,使之正常。我們備有各式大小尺寸的人工髖關節植入物的模型用來模擬人工髖關節;將人工髖關節植入物的尺寸資訊透過3DS MAX軟件來建構出人工髖關節之3D模型,並將模型經由等距切片顯像產生一組帶有二維影像資訊描述模型的影像;接下來,將此組資訊並配合人體髖部位切片資訊導入容積顯像暨手術模擬系統。此手術模擬分析能幫助醫師驗證在手術前的規劃事項來達到人工髖關節在植入後的功能性與人體解剖學的符合性。
This research studies the simulation of hip arthroplasty. The arthroplasty must be applied to the hip with a large fracture on the femur neck or head or malignant tumor in acetabulum, head, neck, trochanter or stem, or AVN (Avascular Vasicular Nekrosis) that let the head radius becomes much small at the acetabulum. The arthroplasty also reduces a dislocation between the head and acetabulum to make normal the gap between the head and acetabulum. We have prepared all sizes of template prostheses o for simulating the hip arthroplasty. Prosthetic data can be obtained by interactively input into the 3DS MAX by the manufacturer-providing cross-sections (dimensions and shapes). Then, the prostheses are converted into the volume representation to be implemented in our simulation system. The simulation can verify whether the planned surgery can achieve the hip functions and morphology.