Asian Spine J.
2014 Dec;8(6):793-798. 10.4184/asj.2014.8.6.793.
PainVision Apparatus Is Effective for Assessing Low Back Pain
- Affiliations
-
- 1Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chuo-ku, Japan. sohtori@faculty.chiba-u.jp
- 2Department of Orthopedic Surgery, Faculty of Medicine, University of Tokyo, Tokyo, Japan.
- 3Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan.
- 4Department of Orthopedic Surgery, Fukushima Medical University School of Medicine, Fukushima, Japan.
- KMID: 2270221
- DOI: http://doi.org/10.4184/asj.2014.8.6.793
Abstract
- STUDY DESIGN: Case series.
PURPOSE: To determine the utility of "PainVision" apparatus for the assessment of low back pain.
OVERVIEW OF LITERATURE: A newly developed device, the PainVision PS-2100 (Nipro, Osaka, Japan), has been used to assess the perception of pain in a quantitative manner. In the current study, we aimed to evaluate the efficacy of PainVision for the assessment of low back pain.
METHODS
We assessed 89 patients with low back pain. The numeric rating scale (NRS) score, McGill Pain Questionnaire (MPQ) score and the degree of pain calculated by PainVision were measured twice at 4-week intervals in each patient. An electrode was patched on the forearm surface of the patients and the degree of pain was automatically calculated (degree of pain=100x[current producing pain comparable with low back pain-current at perception threshold/current at perception threshold]). Correlations between NRS and MPQ scores and the degree of pain were determined using Spearman's rank correlation test.
RESULTS
There was a strong correlation between the NRS and MPQ scores at each time point (rs =0.60, p<0.0001). The degree of pain also showed a moderate correlation with NRS and MPQ scores at each time point (rs =0.40, p<0.03). The change in the degree of pain over 4 weeks showed a moderate correlation with changes in the NRS and MPQ scores (rs =0.40, p<0.01).
CONCLUSIONS
PainVision as self-reported questionnaires is a useful tool to assess low back pain.
