| 摘要 |
A prosthetic knee joint to articulate and rotate the femur relative to the tibia includes an artificial femoral condyle which is mechanically attachable to the femur, and an artificial tibial plateau which is mechanically attachable to the tibia for articulation with the femoral condyle. The femoral condyle has a convex surface and a pair of cylindrical lobes which coaxially extend from the femoral condyle. On the other hand, the tibial plateau has a concave recess which slidingly receives the convex surface and it has a concave cradle which slidingly receives the pair of cylindrical lobes. For operation of the knee joint the concave recess and the concave cradle are oriented and dimensioned on the plateau to sequentially and respectively receive the convex surface and the pair of cylindrical lobes as the femur is moved in flexion and extension relative to the tibia.
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