The Utility of the 5-Factor Modified Frailty Index to Predict Postoperative Risk in Microsurgical Reconstruction

Area of Science:

• Plastic Surgery
• Microsurgical Reconstruction
• Geriatric Surgery

Background:

• Microsurgical reconstruction is a key component of plastic surgery.
• The 5-factor modified frailty index (5-mFI) is a validated predictor of postoperative complications.
• The utility of the 5-mFI in microvascular reconstruction specifically was unexplored.

Purpose of the Study:

• To evaluate the predictive capability of the 5-mFI for postoperative complications in microsurgical reconstruction.
• To compare the predictive performance of the 5-mFI against the American Society of Anesthesiology (ASA) classification.

Main Methods:

• Retrospective analysis of 5894 microsurgical reconstruction patients (2012-2016).
• Frailty scores assessed using the 5-mFI (COPD, CHF, functional status, HTN, DM).
• Statistical analysis included Goodman test, chi-squared test, and logistic regression; 5-mFI and ASA congruence assessed.

Main Results:

• Higher 5-mFI scores correlated with increased postoperative complications requiring ICU care.
• Specific comorbidities (hypertension, COPD, diabetes) were associated with readmission and ventilator weaning failure.
• The 5-mFI and ASA classification showed incongruence in predicting complications.

Conclusions:

• The 5-mFI is a valuable tool for predicting postoperative complications in microsurgical reconstruction.
• While the 5-mFI and ASA predict different outcomes, their combined use offers comprehensive risk assessment.
• Preoperative frailty assessment can guide surgical planning and potentially mitigate risks.