ArticleFederal practitioner : for the health care professionals of the VA, DoD, and PHS2026
Effects of Lumbar Fusion and Dual-Mobility Liners on Dislocation Rates Following Total Hip Arthroplasty in a Veteran Population.
Article in Federal practitioner : for the health care professionals of the VA, DoD, and PHS, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors.
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Abstract
Background: Total hip arthroplasty (THA) is a common orthopedic procedure, particularly in the US veteran population. Dislocation is a significant complication, influenced by such factors as lumbar spinal fusion (LSF), which may be more prevalent in veterans due to service-related injuries. This 20-year retrospective study investigated the association between LSF and dislocation risk in veterans who underwent THA; it also explored the impact of dual-mobility liners on dislocation rates. Methods: THA procedures performed by a single surgeon from 2003 to 2022 were reviewed. The primary outcome was dislocation within 1 year of primary THA; revision rates were a secondary measure. The study evaluated relationships between LSF, demographic variables, the Charlson Comorbidity Index, and lumbar levels that were fused. The study also reviewed whether the use of dual-mobility liners was linked to any protective effects in patients with THA who had previous LSF. Results: The study included 967 THAs for 852 patients; 39 patients (42 THAs) had a prior LSF. Dislocation rates were 9.5% for those with LSF and 3.8% for those without LSF. Logistic regression analysis revealed 2 factors associated with a significantly increased risk of dislocation within 1 year of THA: female sex (odds ratio [OR], 5.84; 95% CI, 2.60-13.13; Conclusions: This 20-year retrospective study involving a veteran population and a single surgeon identified a heightened risk of postoperative dislocation within 1 year of THA among female patients and those with prior LSF. Findings also suggest that dual-mobility liners may be protective against postoperative dislocation in individuals with a history of LSF.
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