WEAR, BONE DENSITY, FUNCTIONAL OUTCOME AND SURVIVAL IN VITAMIN E INCORPORATED CUPS IN TOTAL HIP ARTHROPLASTY: A RANDOMIZED CONTROLLED TRIAL.

N/A

Incorporation of vitamin E to a polyethylene acetabular cup gives less wear at 10 years compared to cross-linked polyethylene without vitamin E.

See above.

Both investigated groups will receive a reversed hybrid total hip arthroplasty. Gentamycine cement (Palacos®R+G, Heraeus) will be used for cup fixation, applying modern cementing techniques including lavage and pressurization. In both groups, the same cementless 28 mm femoral component is used: A proximally plasma sprayed porous coated titanium alloy (Ti6Al4V) stem (Mallory-Head, Biomet) with a cobalt-chromium-molybdenum 28 mm femoral head.

One group will receive a cemented vitamin E stabilized polyethylene acetabular component (E1 Muller cup, Exceed ABT Cemented Cup System, Biomet). The other group will receive a cemented polyethylene acetabular component without the adjunction of vitamin E (ArCom Muller cup, Exceed ABT Cemented Cup System, Biomet).



According to the surgeon’s preference, a posterolateral or anterolateral surgical approach in lateral decubitus position is used. Antibiotic prophylaxis with a first-generation cephalosporin will be given preoperatively and during the first twenty-four hours intravenously.