A kind of porous type artificial knee joint,System includes a femoral,Its bottom sets a loose slot,Two side of loose slot sets one first respectively,Two arc condyles； One extends bone handle,The extension bone handle combination what femoral； And a tibial component,The tibial component includes a tibial plateau and a shin bone implant post,The tibial plateau top surface projects a fulcrum,Two side of fulcrum sets one first respectively,Two make moving surface,This first,Two arc condyles distinguish what this first,Two make to roll and slide on moving surface,This first,Two make on moving surface,The first,Two arc condyles,Extend bone handle periphery and shin bone implant post periphery respectively set several bone cement exposed holes,Drug containing bone cement is laid in bone cement exposed hole respectively,Its exposed area that can increase drug containing bone cement,Achieve the purpose that improve antibiotic release efficiency and treatment of infection.一種多孔式人工膝關節，係包含一股骨元件，其底部設一活動槽，該活動槽二側分別設一第一、二弧形髁部；一延伸骨柄，該延伸骨柄結合於該股骨元件；及一脛骨元件，該脛骨元件包含一脛骨平台及一脛骨植入柱，該脛骨平台頂面突設一支軸，該支軸二側分別設一第一、二作動曲面，該第一、二弧形髁部分別於該第一、二作動曲面上滾動及滑動，該第一、二作動曲面上、第一、二弧形髁部、延伸骨柄外周及脛骨植入柱外周各設數骨水泥暴露孔，骨水泥暴露孔內分別敷設含藥骨水泥，其可增加含藥骨水泥的暴露面積，達到提高抗生素釋放效能與感染治療的目的。
