Risk factors and postoperative complications following revision total knee arthroplasty in patients with metabolic syndrome-associated osteoarthritis: a 10-year retrospective analysis using a national inpatient database.

Patients with MetS-OA experienced slightly longer hospital stays and incurred higher median total hospitalization charges, exceeding those without MetS-OA by $1,445.50.

In-hospital mortality did not differ significantly between groups.

MetS-OA was also associated with a higher likelihood of postoperative complications, including acute myocardial infarction, severe malnutrition, acute cerebrovascular disease, postoperative delirium, acute respiratory distress syndrome, prolonged mechanical ventilation, urinary tract infections, acute renal failure, and lower limb nerve injury.