The Clinical journal of pain
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Although the majority of patients undergoing total knee arthroplasty (TKA) report substantial improvement in pain and function, a significant subset experience persistent postsurgical pain and dysfunction. Better understanding of the longitudinal postoperative course is needed, including the association between patient status following physical rehabilitation at 6-weeks post-TKA, to 6-months outcomes. This study aims to described the postoperative course of TKA and examine variables associated with change in pain and functioning between 6-weeks and 6-months post-TKA. ⋯ These findings demonstrate that the majority of patients' pain and functioning remains stable between 6 weeks and 6 months post-TKA. However, a notable subset continues to improve or worsen in pain and functioning and the current study identifies variables associated with these changes.
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Posttraumatic stress disorder (PTSD) is prevalent in chronic pain, and associated with increased pain, hyperalgesia, and psychological distress. This study aimed to investigate antinociceptive and pronociceptive pain mechanisms, pain intensity, and psychological distress (depression, anxiety, pain catastrophizing, and fear of movement) in patients with accident-related chronic spinal pain with (N=44) and without (N=64) comorbid PTSD characteristics. ⋯ The association between PTSD and pain intensity is in accordance with the mutual-maintenance and fear-avoidance models. Future studies should investigate changes in pain intensity and mechanisms after treatment targeting comorbid PTSD in chronic pain patients.
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To determine if pain catastrophizing is independently associated with pain health-related quality-of-life (HRQoL) in women with endometriosis, independent of potential confounders. ⋯ Higher pain catastrophizing was associated with a reduced pain HRQoL in women with endometriosis at a tertiary referral center, independent of pain severity and other potential confounders.
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Poor adherence to psychological treatment for insomnia is common and limits treatment gains. Very little is known about predictors of adherence among patients with chronic pain, although adherence is theorized to be more critical and more challenging for these patients. This secondary data analysis examines predictors of drop-out and therapy nonattendance in an osteoarthritis population receiving psychological treatment for insomnia and pain. ⋯ Perceptions of treatment acceptability early in treatment represent a potentially modifiable target to enhance adherence to psychological treatment for insomnia and pain among patients with chronic pain. This work represents an important step towards understanding how to best maximize sleep treatments for this patient population.
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Observational Study
Testing a Model of Consultation-based Reassurance and Back Pain Outcomes With Psychological Risk as Moderator: A Prospective Cohort Study.
Reassurance is an essential part of treatment for low back pain (LBP), but evidence on effective methods to deliver reassurance remains scarce. The interaction between consultation-based reassurance and patients' psychological risk is unknown. Our objective was to investigate the relationship between consultation-based reassurance and clinical outcomes at follow-up, in people with and without psychological risk. ⋯ The findings support the hypothesis that different components of reassurance are associated with specific outcomes, and that psychological risk moderates this relationship for depression. Clinicians reassuring behaviors might therefore have the potential to improve outcomes in people with LBP, especially for patients with higher psychological risk profiles.