The interaction of depression and prior opioid use on pain and opioid requirements after total joint arthroplasty

BACKGROUND: Preoperative opioid use causes increased pain and opioid requirements after total joint arthroplasty (TJA), but the effect of depression on this relationship is not well defined. METHODS: We conducted a retrospective review of primary TJA patients using an institutional database. Demographic variables, inpatient opioid requirements, and discharge prescription quantities were collected and compared between patients with and without a prior diagnosis of depression in both the prior opioid-using and nonusing cohorts. RESULTS: Four hundred and three patients were analyzed between August 1, 2016, and July 31, 2017. Among prior opioid users, patients with depression experienced higher inpatient pain levels (4 vs 3; P = .001), required more inpatient opioids (117 oral morphine equivalents [OMEs] vs 70 OMEs; P = .022), were prescribed more opioids at discharge (1163 OMEs vs 750 OMEs; P = .02), and required more long-term opioid refills (57.7% vs 15.4%; P < .001) than patients without depression. However, depression was not associated with increased pain, opioid requirements, prescription quantities, or refill rates among opioid-naive patients. CONCLUSIONS: Depression is not associated with increased pain or opioid requirements among opioid-naive patients after TJA but is associated with significantly higher pain and opioid requirements among patients who use opioids preoperatively. The interaction of these variables may highlight a target for preoperative counseling and risk modification in the arthroplasty population.