Category: Federal Forum Posters
Purpose: The aim of this study is to determine risk factors associated with chronic opioid medication use post-total knee arthroplasty (TKA) and total hip arthroplasty (THA). The study will quantifying the number of veterans who remain, or become, chronic opioid users post-orthopedic surgery at a large veterans affairs hospital system. It also will characterize those patients who are chronic users into sub-groups by baseline conditions, characteristics, and pre-operative opioid use, as well as specify the dose, duration and exact opioid medication(s) prescribed.
Methods: This is a case-control study conducted via retrospective chart review. All patients who underwent TKA or THA at the Southern Arizona VA Healthcare System (SAVAHCS) between 06/01/2016-06/01/2017 will be reviewed, excluding only those with active cancer, death within one year of the surgical date, and ages younger than 18 or greater than 89. Patients will be separated into those who were "opioid-free", or without a prescription for opioids, after post-operative day 90 and those with a prescribed opioid (considered “chronic” users) at greater than 90 days. The two groups will be compared in terms of potential risk factors. The risk factors to be evaluated include: Post-traumatic stress disorder (PTSD), depression, substance abuse, pre-surgical opioid use, benzodiazepine use, non-opioid analgesic use, back pain, and other psychological and musculoskeletal conditions. The specific opioid medication, dose prescribed (morphine milligram equivalent), and duration also will be analyzed.
Results: Not applicable
Conclusion: Not applicable
Andrea Jones– PGY1 Pharmacy Resident, Southern Arizona VA Healthcare System, Tucson, AZ