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Effect of low-level helium–neon laser therapy on histological and ultrastructural features of immobilized rabbit articular cartilage

Paper ID Volume ID Publish Year Pages File Format Full-Text
30757 44501 2007 7 PDF Available
Title
Effect of low-level helium–neon laser therapy on histological and ultrastructural features of immobilized rabbit articular cartilage
Abstract

The present study investigates whether low-level helium–neon laser therapy can increase histological parameters of immobilized articular cartilage in rabbits or not.Twenty five rabbits were divided into three groups: the experiment group, which received low-level helium–neon laser therapy with 13 J/cm2 three times a week after immobilization of their right knees; the control group which did not receive laser therapy after immobilization of their knees; and the normal group which received neither immobilization nor laser therapy. Histological and electron microscopic examinations were performed at 4 and 7 weeks after immobilization.Depth of the chondrocyte filopodia in four-week immobilized experiment group, and depth of articular cartilage in seven-week immobilized experiment group were significantly higher than those of relevant control groups (exact Fisher test, p = 0.001; student’s t-test, p = 0.031, respectively). The surfaces of articular cartilages of the experiment group were relatively smooth, while those of the control group were unsmooth.It is therefore concluded that low-level helium–neon laser therapy had significantly increased the depth of the chondrocyte filopodia in four-week immobilized femoral articular cartilage and the depth of articular cartilage in seven-week immobilized knee in comparison with control immobilized articular cartilage.

Keywords
Low-level laser therapy; Immobilization; Articular cartilage; Histology; Ultra structure; Rabbit
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Effect of low-level helium–neon laser therapy on histological and ultrastructural features of immobilized rabbit articular cartilage
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 87, Issue 2, 25 May 2007, Pages 81–87
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us