Modified frailty index (mFI): is it a predictor for early postoperative complications in arthroplasty surgery?

L Alıbaylı1, K S Cakar Turhan, V Baytas

  • 1Department of Anesthesiology and ICU, Ufuk University Medical School, Ankara, Turkey. serkoc@ankara.edu.tr.

Abstract

Insights

The modified frailty index (mFI) effectively predicts early postoperative complications and mortality in arthroplasty patients. This simple preoperative assessment tool enhances patient risk evaluation for better surgical outcomes.

Area of Science:

  • Orthopedic Surgery
  • Geriatric Medicine
  • Perioperative Medicine

Background:

  • The modified frailty index (mFI) is recognized for predicting perioperative risk across various surgical specialties.
  • Previous studies have established the mFI's efficacy in forecasting adverse perioperative events.
  • Clinical Trial Registration: NCT05424575.

Purpose of the Study:

  • To evaluate the modified frailty index (mFI) as a predictor of early postoperative complications specifically in arthroplasty surgery.
  • To assess the correlation between mFI and key postoperative outcomes, including complications, hospitalization duration, ICU admission, and 30-day mortality.

Main Methods:

  • A prospective study included 145 patients (aged 45-85) undergoing primary or revision total knee and hip arthroplasty.
  • Patients were categorized as "Frail" (n=42) or "Nonfrail" (n=103) based on their calculated mFI.
  • Recorded outcomes included specific postoperative complications, ICU admission, rehospitalization, and 30-day mortality.

Main Results:

  • Frail patients exhibited significantly higher rates of ICU admission (45.2% vs. 7.8%), myocardial infarction (14.3% vs. 1%), septic shock (16.7% vs. 1.9%), and 30-day mortality (16.7% vs. 3.9%).
  • Advanced age, male gender, high ASA score, and prolonged surgery duration were identified as predictors for postoperative complications and ICU admission.
  • Advanced age, male gender, and high ASA score strongly predicted 30-day mortality.

Conclusions:

  • The modified frailty index (mFI) serves as a robust predictor of postoperative complications and mortality in arthroplasty patients.
  • mFI is a straightforward, reliable, and easily implementable method for preoperative frailty assessment.
  • Utilizing mFI can aid in optimizing preoperative patient management and potentially reduce adverse outcomes.

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