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The Capital Region of Denmark - a part of Copenhagen University Hospital
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Fatal outcome and intensive care unit admission after total hip and knee arthroplasty: an analytic of preoperative frailty and comorbidities

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BACKGROUND: With increasing demand for total hip arthroplasty (THA) and total knee arthroplasty (TKA), a higher percentage of patients are identified with comorbidities that might increase the risk of complications. We aimed to elucidate the preoperative characteristics of patients with a fatal outcome or admission to the Intensive Care Unit (ICU) within 90 days after THA or TKA. We arbitrarily hypothesized that more than 50% of those patients would be frail.

METHODS: This is a register based, explorative study including patients undergoing elective, unilateral, primary THA or TKA in the Capital Region of Denmark from 2010 to 2017, and who subsequently died or were admitted to the ICU within 90 days. The modified Frailty Index (mFI) was calculated from the medical records, and a score of ≥0.36 defined frailty.

RESULTS: A total of 33,758 patients underwent THA or TKA, and 284 patients (0.8%) died or were admitted to the ICU within 90 days. Fifty-seven patients (20%) were frail (95% CI 16.2-25.7%). The most common comorbidities were hypertension (63%) and pulmonary diseases (32%), and 56% used walking aids. Two or more comorbidities were present in 65% of patients, and 14% had no comorbidities at all.

CONCLUSION: Only 20% of patients with a fatal outcome or ICU admission after elective THA or TKA could be categorized as frail based on the mFI. Further studies with a prospective design are needed to clarify the mFI as a risk stratification tool in elderly multimorbid patients undergoing elective arthroplasty surgery.

Original languageEnglish
JournalActa Anaesthesiologica Scandinavica
Volume65
Issue number10
Pages (from-to)1390-1396
Number of pages7
ISSN0001-5172
DOIs
Publication statusPublished - Nov 2021

    Research areas

  • comorbidities, fatal outcome, frailty, intensive care unit admission, modified frailty index, THA, TKA, total hip arthroplasty, total knee arthroplasty

ID: 66793957