Objective: Previous studies evaluating interdisciplinary multimodal interventions for chronic spinal pain often excluded patients with comorbid mental disorders. This study aims to assess the effectiveness of an outpatient secondary care interdisciplinary multimodal integrative healthcare program for individuals experiencing co-occurring chronic spinal pain and mental disorders.
Methods: Participants were 944 patients with chronic spinal pain and comorbid mental disorders. Primary outcomes were Health-Related Quality of Life, assessed using the Research and Development-36 (RAND-36), and pain-related disability, assessed using the Quebec Back Pain Disability Scale (QBPDS). Secondary outcomes included pain intensity, pain catastrophizing, kinesiophobia, fatigue, lumbar mobility and isometric strength. Data was collected during the healthcare program at four time points: pre-treatment (T0), midway through 20-week treatment (T1), end of 20-week treatment (T2), and at completion of 12-month relapse prevention program (T3). Multilevel regression analyses were conducted to examine the effects of the healthcare program on primary outcomes over time.
Results: The 20-week treatment period yielded significant improvements in both mental (B = 0.44, t(943) = 19.42, p < 0.001) and physical component summary scores (B = 0.45, t(943) = 18.24, p < 0.001) of the RAND-36, as well as in QBPDS total score (B = -0.77, t(943) = -26.16 p < 0.001). Pre-treatment scores indicated the presence of problematic fatigue, kinesiophobia, and clinical levels of pain catastrophizing, all of which resolved by the end of the 12-month relapse prevention program.
Conclusions: An interdisciplinary multimodal integrative healthcare program seems effective for patients with chronic spinal pain and comorbid mental disorders.
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