M Gabrielle Pagé1, Joel Katz2,3, Kathryn Curtis3, Noga Lutzky-Cohen2, E Manolo Romero Escobar3, Hance A Clarke4,5. 1. Centre de recherche du Centre hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal, Montréal, QC, Canada. 2. Department of Anesthesia, Faculty of Medicine, University of Toronto, Toronto, Canada. 3. Department of Psychology, Faculty of Health, York University, Toronto, ON, Canada. 4. Department of Anesthesia, Faculty of Medicine, University of Toronto, Toronto, Canada. hance.clarke@utoronto.ca. 5. Department of Anesthesia, Toronto General Hospital, 200 Elizabeth Street, Eaton North 3 EB 317 , Toronto, ON, M5G 2C4, Canada. hance.clarke@utoronto.ca.
Abstract
PURPOSE: The aim of this study was to explore acute movement-evoked postoperative pain intensity trajectories over the first 5 days after total hip arthroplasty (THA) and to examine how these pain trajectories are associated with pain-related outcomes 6 weeks and 6 months later. METHODS: A total of 150 adult patients [72 women (48.0 %); mean age 60.0 ± 9.2 (standard deviation) years] completed pain questionnaires preoperatively, several times daily postoperatively until hospital discharge, and 6 weeks and 6 months after surgery. RESULTS: Results showed that the best model had four different acute postoperative pain trajectories and a significant quadratic term. The trajectories varied in terms of initial pain intensity levels and rates of decline/increase in pain over the first 4 postoperative days. Significant predictors of pain trajectory membership were preoperative pain disability and anxiety as well as cumulative morphine consumption 24 h following surgery. Pain trajectories were significantly associated with levels of pain intensity and anxiety at 6 weeks but not at 6 months postoperatively. CONCLUSION: This study showed that during the postoperative period patients differed in terms of pain intensity profiles and that these differences were associated with outcomes for up to 6 weeks following surgery. Pain trajectories were not predictive of persistent postoperative pain status at 6 months. Nonetheless, these results highlight the importance of patient heterogeneity in acute postoperative pain and pain-related outcomes months after THA.
PURPOSE: The aim of this study was to explore acute movement-evoked postoperative pain intensity trajectories over the first 5 days after total hip arthroplasty (THA) and to examine how these pain trajectories are associated with pain-related outcomes 6 weeks and 6 months later. METHODS: A total of 150 adult patients [72 women (48.0 %); mean age 60.0 ± 9.2 (standard deviation) years] completed pain questionnaires preoperatively, several times daily postoperatively until hospital discharge, and 6 weeks and 6 months after surgery. RESULTS: Results showed that the best model had four different acute postoperative pain trajectories and a significant quadratic term. The trajectories varied in terms of initial pain intensity levels and rates of decline/increase in pain over the first 4 postoperative days. Significant predictors of pain trajectory membership were preoperative pain disability and anxiety as well as cumulative morphine consumption 24 h following surgery. Pain trajectories were significantly associated with levels of pain intensity and anxiety at 6 weeks but not at 6 months postoperatively. CONCLUSION: This study showed that during the postoperative period patients differed in terms of pain intensity profiles and that these differences were associated with outcomes for up to 6 weeks following surgery. Pain trajectories were not predictive of persistent postoperative pain status at 6 months. Nonetheless, these results highlight the importance of patient heterogeneity in acute postoperative pain and pain-related outcomes months after THA.
Entities:
Keywords:
Chronic post-surgical pain; Pain trajectories; Total hip arthroplasty; Transition acute to chronic pain
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