High Initial Stability in Porous Titanium Acetabular Cups: A Biomechanical Study

Three Year RSA Evaluation of Vitamin E Diffused Highly Cross-linked Polyethylene Liners and Cup Stability

“…Polyethylene with diffused vitamin E has performed well in preclinical studies with improved resistance to oxidation and higher fatigue strength [5,6]. For uncemented acetabular shells, the newest designs offer various types of coatings that might lead to optimal bone in-growth with one recent option being a press-fit cup with a porous titanium coating (PTC) [7].…”

Clinical Outcomes, Survivorship and Adverse Events With Mobile-Bearings Versus Fixed-Bearings in Hip Arthroplasty—A Prospective Comparative Cohort Study of 143 ADM Versus 130 Trident Cups at 2 to 6-Year Follow-Up

“…As a matter of fact, the main cause of failure for these grit-blasted dual mobility cups belonging to the "first generation" was not instability or wear, but aseptic loosening [6][7][8], although additional fixation by screws was commonly used. Hence current mid-term, promising, good results in cup fixation with this press-fit ADM cup featuring an efficient macrostructured interlocking are expected later on to be confirmed upon long-term follow-up, provided that indications remain appropriate, excluding revision cases and poor quality host bone [32][33][34]. The second published "classic" cause of failures was intraprosthetic dislocation [7].…”

The effect of dynamic hip motion on the micromotion of press-fit acetabular cups in six degrees of freedom

“…These blocks have similar mechanical properties to trabecular bone [14,15] and are commonly used to model the acetabulum in biomechanical tests [6,[16][17][18][19] .…”