• Pain Med · Nov 2024

    Pressure Pain Sensitivity is Independent of Structural Pathology in Patients with Subacromial Pain Syndrome: A Cross-Sectional Analysis.

    • Chris Pierson, Richard Wilson, Karen Brewer-Mixon, Yi-Ting Tzen, Jon Williamson, Kristine Hansen, Terri Hisel, and Nitin Jain.
    • Department of Applied Clinical Research, UT Southwestern Medical Center, 6011 Harry Hines Blvd, Dallas, Texas, 75235 (USA).
    • Pain Med. 2024 Nov 26.

    ObjectiveTo compare localized (primary) and widespread (secondary) hyperalgesia using pressure pain threshold (PPT) of patients with normal imaging findings, rotator cuff tear, or other pathologies.DesignThis was a cross-sectional design with data collected at a single time point.SettingThis study was performed at two large, urban, academic medical centers.SubjectsParticipants included had chronic subacromial pain syndrome for three months or longer. Each participant was categorized into one of three imaging groups: normal imaging, rotator cuff tear, or other structural pathology.MethodsPrimary hyperalgesia was assessed with PPT at the midsection of the painful shoulder's lateral deltoid. Secondary hyperalgesia was assessed with PPT at the contralateral tibialis anterior muscle (TA). An ANOVA and ANCOVA was performed for each objective. ANCOVA covariates included age, sex, education level, and pain duration.ResultsThe 103 participants included 55 males, had a median age of 55 years, median pain duration of 14.0 months, and a median composite Shoulder Pain and Disability Index (SPADI) score of 43.1%. The ANCOVA for primary hyperalgesia showed no significant difference in square-root adjusted deltoid PPT between imaging groups (F = 1.04, p = 0.3589). The ANCOVA for secondary hyperalgesia showed no significant difference in log-adjusted TA PPT between imaging groups (F = 0.24, p = 0.7900).ConclusionsNo significant difference was observed in the analysis of ipsilateral deltoid or contralateral TA PPT between patients with differing structural shoulder pathologies. These findings suggest that the three types of structural shoulder abnormalities we examined are not significantly associated with differences in one measure of hyperalgesia.© The Author(s) 2024. Published by Oxford University Press on behalf of the American Academy of Pain Medicine. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

      Pubmed     Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…