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A malpositioned acetabular component may result in impingement and an altered center of rotation. Cementless acetabular components rely on adequate press-fit fixation, which is affected by the bone stock after reaming and the occurrences of intraoperative periprosthetic fractures. Preservation of the acetabulum during primary THA has an impact on both the initial procedure as well as any subsequent revision surgery. Revision rates appear to be higher in younger patients. projected a two-fold increase in revisions by 2026. As a consequence, the number of revisions is expected to increase dramatically. By the year 2030, 52% of primary THAs are projected to be performed in patients younger than 65 years, with the highest increase in patients aged 45 - 55 years. The 5474 hip revisions that were performed in Australia in 2018 is a 19.5% increase over those completed in 2003. Total hip arthroplasty (THA) is an increasingly common procedure 49,764 procedures were performed in Australia in 2018, representing a 108.1% increase in primary total hip replacements completed over those performed in 2003. Surgeons may consider utilizing RAA THA, particularly in younger patients, toīetter preserve bone stock as this could potentially impact future revision This approach reflects the increased precision offered by RAA single reaming. Preservation of acetabular bone compared to conventional hip replacement and resurfacing. Conclusions: The use of RAA THA results in statistically significant During the 35 - monthįollow-up period, there were no complications related to cup placement or positioning. None of the acetabular cups required screw fixation. Than the reaming weight using uncemented THA and hip resurfacing of 12.75 g. Results: The mean reaming weight using the MAKO system was 9.08 g, which was 29% less Comparison of acetabular reaming during hip resurfacing Replacement and resurfacing, as measured by Brennan et al. Recruited 69 patients who had undergone primary THA using the Stryker TridentĪcetabular System ® in combination with the Stryker RAA System (MAKO) ® and compared their mean reaming weight (g) with that of conventional hip The purpose of this study is to determine whether the single ream, roboticĪrm-assisted (RAA) THA can preserve a greater volume of bone stock compared toĬonventional hip replacement and resurfacing. ItĬan also lead to impingement, loosening, an altered center of rotation, and intraoperative periprosthetic fracture. More bone loss and the need for large acetabular components to be implanted. Background: Total hip arthroplasty (THA) is a common procedure that is increasinglyīeing performed in younger patients.