Influence of inpatient opioid consumption on persistent use following total knee arthroplasty.

Background: Total knee arthroplasty (TKA) is associated with a high incidence of continued opioid use beyond the expected period of recovery. The aim of this study was to determine the influence of inpatient opioid consumption on the development of persistent use.

Methods: Opioid-naïve patients undergoing primary, uncomplicated TKA were included in a prospective, observational study at a single institution.