Effect of minimally-invasive implantation of unicompartmental knee arthroplasty on cement penetration and biomechanical stability. An experimental study in human tibiae

The study demonstrates no inferiority of minimally-invasive surgery with respect to fixation strength. However, the higher area proportion of the cement-bone interface without penetration and the increasing thickness of cement mantle from anterior to posterior indicate further room for improvement of the minimally-invasive approach in unicompartmental knee arthroplasty.