347 patients were involved in this study comparing highly porous metal to the standard modular cemented tibial components in total knee arthroplasty over a period of 2 to 9 years (average 5 years). This was done through randomization into 3 groups, receiving traditional modular cemented tibial components, cemented highly porous metal tibial components, or uncemented highly porous metal tibial components. Assessed outcomes included survivorship, Knee Society scores, range of motion (ROM), and complications. Results indicated that highly porous metal tibias, regardless of whether they were cemented or not, were not significantly different than traditional cemented modular tibias when considering outcomes of interest.