Laende EK, et al. - Via 79 cases who had participated in radiostereometric analysis (RSA) migration studies with a two-year follow-up, the researchers intended to contrast the long-term migration with one- and two-year migration to assess the predictive ability of short-term migration data and to compare migration and inducible displacement among cemented and cementless (porous metal monoblock) components at least ten years postoperatively. A significant correlation of migration at one year and two years with long-term migration was noted. For the cemented group and cementless group, median migration at the long-term follow-up had no difference (n=0.6 mm). For the cementless elements, inducible displacement was markedly lower. Hence, a powerful link between long-term migration and two-year migration was observed. However, no difference could be ascertained in long-term migration for cemented or cementless tibial components, inducible displacement at the long-term visit was markedly weaker for these cementless components, hinting superior fixation. Furthermore, in discovering long-term fixation, the results supported the predictive value of short-term migration.