Cementless Acetabular Fixation With and Without Screws

Does the Ingrowth Surface Make a Difference? A Retrieval Study of 423 Cementless Acetabular Components

“…Bone ingrowth to shells that utilize screw fixation compared to shells of the same type without screw fixation, was not significantly different (Fig.5). This is supported by other studies where no advantage or disadvantage with screw fixation was found [21,22]. Bead shedding has been reported for a number of the shell types investigated in this study [23].…”

Cluster Hole Versus Solid Cup in Total Hip Arthroplasty: A Randomized Control Trial

“…A number of studies have compared cups with screw fixation versus no screw fixation and data from these may be extrapolated. Some of these trials have failed to find a difference [20][21][22], two of which included patients with ultra-high-molecular-weight polyethylene (UHMWPE) [21,22]. Two other trials have demonstrated differing results, but notably did not use UHMWPE [23,24].…”

“…A cohort study of 775 uncemented acetabular components compared screw fixation (509 cups) to no screw fixation (266 cups) at a mean follow-up of 6.5 years (range, 2-10 years) [21]. They found no significant difference in re-operation, cup migration or osteolysis between the two groups.…”

Surgical Treatment Options in Patients With Impaired Bone Quality

“…Moreover, cementless technology has improved the reliability of acetabular fixation to the point where bone quality is not regarded as an important issue in the vast majority of cases [36,56,57]. However, preoperative assessment and intraoperative awareness of acetabular bone quality may help to prevent important technical errors that may negatively affect long-term bone support and fixation.…”