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  • Title: Modified Frailty Index Is an Effective Risk Assessment Tool in Primary Total Hip Arthroplasty.
    Author: Bellamy JL, Runner RP, Vu CCL, Schenker ML, Bradbury TL, Roberson JR.
    Journal: J Arthroplasty; 2017 Oct; 32(10):2963-2968. PubMed ID: 28559198.
    Abstract:
    BACKGROUND: Frailty is described as decreased physiological reserve and typically increasing with age. Hospitals are being penalized for reoperations and readmissions, which can affect reimbursement. The purpose of this study was to determine if the modified frailty index (MFI) could be used as a risk assessment tool for preoperative counseling and to make an objective decision on whether to perform total hip arthroplasty (THA) on a frail patient. METHODS: The American College of Surgeons National Surgical Quality Improvement Program database was queried by Current Procedural Terminology code for primary THA (27130) from 2005 to 2014. MFI was calculated using 11 variables extracted from the medical record. Bivariate analysis was performed for outcomes and complications, and the multiple logistic regression model was used to compare MFI with other predictors of readmission, any complication, and reoperation. RESULTS: A total of 51,582 patients underwent primary THA during the study period. MFI was a significant and stronger predictor than the American Society of Anesthesiologists class and age for readmission (odds ratio [OR], 14.72; 95% confidence interval [CI], 6.95-31.18; P < .001), any complication (OR, 3.63; 95% CI, 1.64-8.05; P = .002), and reoperation (OR, 8.78; 95% CI, 3.67-20.98; P < .001). As MFI increased, adverse discharge, any complication, readmission, reoperation, and mortality significantly increased (P < .001). Rates of systemic complications and length of stay significantly increased with increasing MFI. CONCLUSION: MFI is a simple and effective risk assessment tool to preoperatively counsel and make an objective decision on whether to perform THA on a frail patient.
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