Introduction: Bone cement implantation syndrome (BCIS) is characterized by hypoxia, hypotension, and cardiovascular compromise during cementation in arthroplasty cases. This study examines the association between anesthetic regimen and risk of BCIS in cemented hemiarthroplasty for hip fractures. We hypothesized that neuraxial anesthesia would be associated with markedly lower BCIS incidence compared with general anesthesia alone or in combination with regional anesthesia.
Methods: This retrospective cohort study included patients aged 50 years or older who underwent cemented hemiarthroplasty for hip fractures at a single institution between January 2017 and December 2022. Patient demographics, comorbidities, procedural factors, anesthetic characteristics including anesthetic regimen (general, general plus regional, or neuraxial), cement timing, BCIS development, postoperative complications, and mortality data were extracted. BCIS was identified by changes in postcementation vitals and its severity classified according to previously established criteria. Univariate statistical analyses and multivariate logistic regression were conducted.
Results: Of the 137 included patients, 58 (43%) developed BCIS. No notable differences were observed in demographics, comorbidities, or procedural characteristics between patients who developed BCIS and those who did not. However, anesthetic regimen was markedly correlated with BCIS development, with general anesthesia demonstrating the highest rates (26/43, 55%), followed by general plus regional anesthesia (26/58, 45%) and neuraxial anesthesia (6/32, 19%; P = 0.005). Compared with neuraxial anesthesia, general anesthesia and general plus regional anesthesia conferred 6.8 and 5.5 times greater odds of developing BCIS, respectively. The development of BCIS was associated with significantly higher rates of postoperative hypoxia ( P = 0.04) and unplanned prolonged intubation ( P = 0.04).
Conclusion: BCIS was highly prevalent among patients undergoing cemented hemiarthroplasty for hip fractures. The anesthetic regimen was the only variable markedly associated with BCIS development and is a potentially modifiable risk factor.
Level Of Evidence: III.
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