| A randomised, placebo controlled trial of low level laser therapy for activated Achilles tendinitis with microdialysis measurement of peritendinous prostaglandin E2 concentrations. | |
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MedLine Citation:
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PMID: 16371497 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Low level laser therapy (LLLT) has gained increasing popularity in the management of tendinopathy and arthritis. Results from in vitro and in vivo studies have suggested that inflammatory modulation is one of several possible biological mechanisms of LLLT action. OBJECTIVE: To investigate in situ if LLLT has an anti-inflammatory effect on activated tendinitis of the human Achilles tendon. SUBJECTS: Seven patients with bilateral Achilles tendinitis (14 tendons) who had aggravated symptoms produced by pain inducing activity immediately before the study. METHOD: Infrared (904 nm wavelength) LLLT (5.4 J per point, power density 20 mW/cm2) and placebo LLLT (0 J) were administered to both Achilles tendons in random blinded order. RESULTS: Ultrasonography Doppler measurements at baseline showed minor inflammation through increased intratendinous blood flow in all 14 tendons and measurable resistive index in eight tendons of 0.91 (95% confidence interval 0.87 to 0.95). Prostaglandin E2 concentrations were significantly reduced 75, 90, and 105 minutes after active LLLT compared with concentrations before treatment (p = 0.026) and after placebo LLLT (p = 0.009). Pressure pain threshold had increased significantly (p = 0.012) after active LLLT compared with placebo LLLT: the mean difference in the change between the groups was 0.40 kg/cm2 (95% confidence interval 0.10 to 0.70). CONCLUSION: LLLT at a dose of 5.4 J per point can reduce inflammation and pain in activated Achilles tendinitis. LLLT may therefore have potential in the management of diseases with an inflammatory component. |
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Authors:
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J M Bjordal; R A B Lopes-Martins; V V Iversen |
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Publication Detail:
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Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: British journal of sports medicine Volume: 40 ISSN: 1473-0480 ISO Abbreviation: Br J Sports Med Publication Date: 2006 Jan |
Date Detail:
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Created Date: 2005-12-22 Completed Date: 2006-02-10 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 0432520 Medline TA: Br J Sports Med Country: England |
Other Details:
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Languages: eng Pagination: 76-80; discussion 76-80 Citation Subset: IM |
Affiliation:
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Physiotherapy Science, University of Bergen, Bergen, Norway. jmbjor@broadpark.no |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Achilles Tendon*
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metabolism,
ultrasonography Adult Dinoprostone / metabolism* Double-Blind Method Humans Laser Therapy, Low-Level / methods* Microdialysis / methods Middle Aged Pain Measurement Tendinopathy / radiotherapy*, ultrasonography Treatment Outcome |
| Chemical | |
Reg. No./Substance:
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363-24-6/Dinoprostone |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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