Why does the BICON-PLUS® cup system have two thread designs – standard and porosis?
The two thread designs cover virtually the entire spectrum of indications for cementless cups, in particular those for soft and porous bone.The STANDARD design satisfies the requirements for hard to extremely scelerotic bone. The sharp threads allow the full benefits of the taper to be exploited as the cup is not just anchored at the thread edges.The POROSIS design was developed specifically for use in porotic, soft and weak bone. The innovative thread geometry, with a smaller tooth-like series, increases the contact area between bone and implant by 46% compared with the STANDARD design. This avoids stress peaks (=> bone resorption) and produces uniform load distribution.Both cups can also be used for revisions, depending on the bone quality.
