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For this study, we considered only acetabular failure modes, which include late loosening (>2 years), early loosening ([less than or equal to] 2 years), early cup shift ([less than or equal to] 2 years), and AWRF (Table 4).
Abbreviations HRA: Hip resurfacing arthroplasty THA: Total hip arthroplasty MoM: Metal-on-metal Ti: Titanium Co: Cobalt Cr: Chromium PVD: Physical vapor deposition HA: Hydroxyapatite AWRF: Adverse wear-related failure HHS: Harris hip score UCLA: University of California Los Angeles VAS: Visual analog scale AIA: Acetabular inclination angle KM: Kaplan-Meier RAIL: Relative acetabular inclination limit HIP: Hot isostatic pressing.
Awrf = [[theta].sub.0] + [[theta].sub.1]t + [[theta].sub.2]/t + [[theta].sub.3]/[t.sup.2] + [[theta].sub.4]/[t.sup.3], (1)
He chose the Hamilton, Bermuda-based SIGNAL, formed by the Associated Wire Rope Fabricators (AWRF).
dev2:ibrd 200 (end completed) "AWRF Pwr Mtr revision 1.21"
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