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Comparing lumbosacral orthosis to routine physical therapy on postural stability in patients with chronic low back pain: A randomized trial

Azadinia, F ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.18869/mjiri.31.26
  3. Publisher: Tehran University of Medical Sciences , 2017
  4. Abstract:
  5. Background: Poor balance performance and impaired postural control have been frequently reported in patients with low back pain.However, postural control is rarely monitored during the course of treatment even though poor postural control may contribute tochronicity and recurrence of symptoms. Therefore, the present study aimed at investigating the effect of a nonextensible lumbosacralorthosis (LSO) versus routine physical therapy on postural stability of patients with nonspecific chronic low back pain.Methods: This was a randomized controlled trial conducted between November 2015 and May 2016 at the outpatient physical therapyclinic of the School of Rehabilitation Sciences. Patients with nonspecific chronic low back pain aged 20 to 55 years were randomlyallocated to the intervention and control groups. Both groups received 8 sessions of physical therapy twice weekly for 4 weeks. Theintervention group received nonextensible LSO in addition to routine physical therapy. Pain intensity, functional disability, fear ofmovement/ (re)injury, and postural stability in 3 levels of postural difficulty were measured before and after 4 weeks of intervention. A2×2×3 mixed model of analysis of variance (ANOVA) was used to determine the main and interactive effects of the 3 factors includinggroup, time, and postural difficulty conditions for each variable of postural stability.Results: The LSO and control groups displayed significant improvement in postural stability at the most difficult postural task conditions(P-value for 95% area ellipse was 0.003; and for phase plane, the mean total velocity and standard deviation of velocity was<0.001). Both groups exhibited a decrease in pain intensity, Oswestry Disability Index, and Tampa Scale of Kinesiophobia after 4weeks of intervention. A significant difference between groups was found only for functional disability, with greater improvement inthe orthosis group (t = 3.60, P<0.001).Conclusion: Both routine physical therapy and LSO significantly improved clinical and postural stability outcomes immediately after4 weeks of intervention. The orthosis group did not display superior outcomes, except for functional disability. © Iran University of Medical Sciences
  6. Keywords:
  7. Center of pressure ; Functional disability ; Low back pain ; Orthoses ; Pain ; Postural control
  8. Source: Medical Journal of the Islamic Republic of Iran ; Volume 31 , 2017 ; 10161430 (ISSN)
  9. URL: http://mjiri.iums.ac.ir/browse.php?a_id=4078&sid=1&slc_lang=en