CEMENTED VERSUS UNCEMENTED SOCKET IN HIP-ARTHROPLASTY - A RADIOSTEREOMETRIC STUDY OF 60 RANDOMIZED HIPS FOLLOWED FOR 2 YEARS

60 patients with arthrosis who received a Charnley total hip replaceme nt were randomly assigned to either an uncemented porous Harris-Galant e type I socket or a cemented all-polyethylene Charnley socket. Socket migration and rotation were studied by radiostereometry (RSA) for 2 y ears. After 2 years, all sockets were still in situ. There was no diff erence in migration or rotation between the 2 socket designs, nor was there any difference in pain or function. We conclude that the initial fixation of the Harris-Galante socket resembles that of the Charnley socket.