The Influence of Multiple Modifiable Risk Factors on 30-day Readmissions and 90-day Major Complications After a Total Hip and Knee Arthroplasty: An Analysis of a Large Claims Database

Overview

Journal J Am Acad Orthop Surg Glob Res Rev

Date 2025 Feb 3

PMID 39899738

Authors

Lucas M Luong

Regina O Kostyun

Daniel K Witmer

John C Grady-Benson

Affiliations

Soon will be listed here.

Abstract

Background: Preoperative optimization of modifiable risk factors (MRFs) for arthroplasty patients is a critical aspect of predicting and improving postoperative outcomes. This study evaluates the correlation between seven MRFs and postoperative adverse outcomes after total hip arthroplasty (THA) and total knee arthroplasty (TKA).

Methods: A retrospective review of primary TKA and THA were identified from a large medical claims database. Patients were categorized based on the number of MRF diagnoses present before surgery (anemia, malnutrition, obesity, opioid abuse/dependence, mental illness, type 2 diabetes mellitus, and tobacco use), from zero to seven. Adverse outcomes evaluated were surgical site infections (SSIs), venous thromboembolic events (VTEs), and readmissions.

Results: Of the patient records queried (THA = 303,857; TKA = 692,157), two or more MRFs were identified in 41% of THA patients and 47% of TKA patients. Patients with two or more MRFs were at an increased odds of developing an SSI, and patients with three or more MRFs had increase odds of having a 30-day hospital readmission.

Conclusions: This study adds to the compendium of literature, which promotes preoperative optimization of MRFs in arthroplasty patients to decrease the risks of 90-day postoperative complications.

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