• Arch Phys Med Rehabil · Aug 2014

    Relationship between sleep, pain, and disability in patients with spinal pathology.

    • Mohammad-Mehdy Zarrabian, Michael Johnson, and Dean Kriellaars.
    • Section of Orthopedic Surgery, Department of Surgery, University of Manitoba, Winnipeg, Manitoba, Canada. Electronic address: mzarrabian00@hotmail.com.
    • Arch Phys Med Rehabil. 2014 Aug 1;95(8):1504-9.

    ObjectiveTo characterize sleep and its relationship with disability and pain in patients with spine pathology.DesignA survey study.SettingA university-based hospital spine clinic.ParticipantsSubjects (N=121) with mixed-etiology spine pathology.InterventionsNot applicable.Main Outcome MeasuresSelf-reported disability (Oswestry Disability Index [ODI]), back and leg pain intensity, the effect of back or leg pain on function, and sleep (Pittsburgh Sleep Quality Index [PSQI]) assessments were completed.ResultsSevere disability was evident with a mean ODI ± SD of 54.9±14, with mean pain intensities ± SD of 50±30 mm and 54±27 mm of 100mm for the leg and back, respectively. The mean PSQI ± SD was 10.4±5.3, with 87% of participants scoring greater than the sleep-disordered threshold of 5. PSQI was correlated to ODI (r=.53, P<.001), and ODI without the sleep component (r=.47, P<.001). Six of the subscales of PSQI were all also significantly correlated to ODI (.25ConclusionsDespite its being intuitive that sleep disorders will be present in patients with spinal disorders, it was surprising that sleep quality was an independent predictor of disability along with pain. Furthermore, sleep quality is more closely correlated to disability than leg pain, which is the current focus of medical interventions.Copyright © 2014 American Congress of Rehabilitation Medicine. Published by Elsevier Inc. All rights reserved.

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