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J Manipulative Physiol Ther. 2016 Feb;39(2):88-94. doi: 10.1016/j.jmpt.2016.01.001. Epub 2016 Feb 19.

Exploratory Analysis of Clinical Predictors of Outcomes of Nonsurgical Treatment in Patients With Lumbar Spinal Stenosis.

Author information

1
Associate Professor, Department of Physical Therapy and Clinical and Translational Sciences Institute, University of Pittsburgh, Pittsburgh, PA. Electronic address: mjs5@pitt.edu.
2
Associate Professor, Department of Occupational Therapy and Clinical and Translational Sciences Institute, University of Pittsburgh, Pittsburgh, PA.
3
Clinical Director, Rhode Island Spine Center, Pawtucket, RI; Clinical Assistant Professor, Department of Family Medicine, Alpert Medical School of Brown University, Providence, RI.
4
Assistant Professor, Department of Physical Therapy, University of Pittsburgh, Pittsburgh, PA.
5
Private Practice of Physical Therapy, Select Physical Therapy, Staunton, VA.
6
Professor, Department of Research, National University of Health Sciences, Lombard, IL.

Abstract

OBJECTIVE:

The purpose of this study was to explore potential baseline physical examination and demographic predictors of clinical outcomes in patients with lumbar spinal stenosis.

METHODS:

This was a secondary analysis of data obtained from a pilot randomized controlled trial. Primary and secondary outcome measures were the Swiss Spinal Stenosis (SSS) Questionnaire and visual analog scale (VAS) for leg pain. Multiple regression models were used to assess 2 different outcomes: SSS at completion of care and VAS at completion of care. Separate regression models were built for each of the 2 outcomes to identify the best subset of variables that predicted improvement. Predictors with a significant contribution were retained in a final "best" model.

RESULTS:

Three variables were identified as having an association with SSS score at completion of care: baseline SSS score, qualitative description of leg pain, and age (adjusted R(2) = 33.2). Four variables were identified as having an association with VAS score at completion of care: baseline VAS score, qualitative description of leg pain, body mass index, and age (adjusted R(2) = 38.3).

CONCLUSION:

This study provides preliminary evidence supporting an association between certain baseline characteristics and nonsurgical clinical outcomes in patients with lumbar spinal stenosis.

KEYWORDS:

Chiropractic; Complementary Therapies; Low Back Pain; Lumbar Vertebrae; Manipulation; Radiculopathy; Spinal Stenosis

PMID:
26907616
DOI:
10.1016/j.jmpt.2016.01.001
[Indexed for MEDLINE]

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