POOR RESULTS OF THE RIBBED HIP SYSTEM FOR CEMENTLESS REPLACEMENT

We reviewed 12 patients six years after they had undergone total hip r eplacement with a cementless prosthesis, the Ribbed Hip System (Waldem ar Link GmbH and Co, Hamburg, Germany). Aseptic loosening of one or bo th components had necessitated revision surgery in seven patients, in five within two years of operation. In view of our experience we quest ion the wisdom of allowing the uncontrolled use of new prostheses with out postoperative surveillance.