Archives of orthopaedic and traumatic surgery

, Volume 106, Issue 6, pp 358–363 | Cite as

What is the efficacy of “soft” and “mid” lasers in therapy of tendinopathies?

A double-blind study
  • W. Siebert
  • N. Seichert
  • B. Siebert
  • C. J. Wirth
Original Articles

Summary

The efficacy of “athermic” lasers (HeNe λ = 632.8 nm and IR diode λ = 904 nm) in the treatment of tendinopathies was investigated in a randomized double-blind study. On 10 consecutive days, 64 patients (32 therapy, 32 placebo) were treated for 15 minutes each with a switched-on or switched-off laser under otherwise identical conditions. The extent of movement in involved joints (neutral 0 method) and rating on a pain scale for resting pain, movement pain, and pressure pain before treatment, after treatment, and 2 weeks after conclusion of therapy, as well as infrared thermography, served to check therapy. After the end of therapy, a significant reduction (P = <0.001) of 50% was shown for resting pain as well as reductions of 30% for movement and 30% for pressure pain. This result was identical in the therapy group and in the placebo group. There was also no indication of a different result of therapy between the therapy and placebo groups with regard to the thermographic control and the extent of movement. The breakdown of the data in terms of age, sex, and duration of disease did not provide any indications of different results for placebo or therapy. It was striking that the patients who reported sensations during or after the treatment (irrespective of whether pleasant or unpleasant) had a greater reduction of pain than the patients without sensations. This laser therapy thus did not show any effect above and beyond that in the untreated group in our double-blind clinical study.

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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • W. Siebert
    • 1
  • N. Seichert
    • 2
  • B. Siebert
    • 2
  • C. J. Wirth
    • 1
  1. 1.Department of Orthopedics, Großhadern HospitalMunich University Medical SchoolGermany
  2. 2.Department of Physical Medicine, Großhadern HospitalMunich University Medical SchoolGermany

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