本計畫以有限元素法探討人工髖關節頭與髖臼杯三種接觸組態之研磨狀況，包括：(1)金屬對金屬、(2)金屬對聚乙烯、及(3)金屬對複合結構等；其中之人工髖關節頭材料為不鏽鋼、鈷鉻鉬、或鈦合金；而髖臼杯材料則採用聚乙烯、不鏽鋼、鈷鉻鉬、鈦合金，或這些材料之組合(分為單層、雙層、或三層)。本研究討論髖臼杯之應力分佈狀態及磨耗速率，以進一步提出較佳的人工髖關節系統設計。
This study employed the finite element method to discuss the wear conditions of three contact configurations of hip prosthesis head and acetabular cup, including: (1) metal-on-metal, (2) metal-on-polyethylene (PE), and (3) metal-on-composite structure. The materials of the head were stainless steel, CoCrMo, or Titanium alloy. And, the materials of these cups were PE, stainless steel, CoCrMo, Titanium alloy, or their combinations (constructed as single layer, double layers, or three layers). We analyzed the stress distributions and the wear rates to provide a better hip system design.
