Pain medicine : the official journal of the American Academy of Pain Medicine
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The objective of this study is to identify the prevalence of opioid prescription use in an Australian workers' compensation population and assess predictors of long-term use. ⋯ Prescription opioid use for workplace injury in Australia is common but not as common as reports from U.S. workers' compensation schemes. The type of opioid and number of repeat prescriptions are factors that should be carefully considered by practitioners prescribing opioids to injured workers: progression to long-term use is common and not fully explained by injury severity.
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Observational Study
The design and methods of genetic studies on acute and chronic postoperative pain in patients after total knee replacement.
Total knee replacement (TKR) is the treatment option of choice for the millions of individuals whose osteoarthritis pain can no longer be managed through non-invasive methods. Over 500,000 TKRs are performed annually in the United States. Although most patients report improvement in pain and functioning following TKR, up to 30% report persistent pain that interferes with daily function. However, the reasons for poor outcomes are not clear. To best determine which patients are at risk for pain post TKR, a detailed and comprehensive approach is needed. In this article, we present the methodology of a study designed to identify a set of genetic, proteomic, clinical, demographic, psychosocial, and psychophysical risk factors for severe acute and chronic pain post TKR. ⋯ This study, for the first time, captures the information on both genetic and "environmental" risk factors for acute and chronic pain post-TKR and has the potential to lead to the next step-multicenter large-scale studies on predictors and biomarkers of poor TKR outcomes as well as on tailored interventions and personalized medicine approaches for those at risk.
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We hypothesized that among community-dwelling older adults without dementia with advanced chronic knee osteoarthritis (OA) pain: 1) higher levels of self-reported pain would be associated with decreased executive cognitive function and decreased physical function; and 2) decreased cognitive function would be associated with decreased physical function. ⋯ Worse pain scores and executive function scores were associated with worse physical function in older adults with painful knee OA. This suggests that slower gait speed in patients could be an indication to clinicians to monitor their patient's cognitive function. Executive function in particular affected the relationship between gait speed and pain, suggesting a possible mediating relationship.
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Patients with opioid use disorder maintained on methadone report more chronic pain than the general population. The current study characterized chronic pain in patients with opioid use disorder. ⋯ Results suggest there is a large discrepancy in the percent of patients who may need treatment for pain and those receiving treatment for pain and that more efforts should be made to provide standard pain management techniques to patients with opioid use disorder to reduce their overall level of pain and potentially improve their overall treatment outcomes.