Effect of Nd:YAG laser energy on articular cartilage healing in the dog

Elizabeth M. Hardie, Cathy S. Carlson, Daniel C. Richardson

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

The effect of low dose neodymium:yttrium aluminum garnet (Nd:YAG) laser therapy on cartilage healing was studied. Partial‐ and full‐thickness cartilage defects were surgically created in the femoral condyles of 20 adult dogs. The cartilage defects in one limb of each dog were exposed to 30 J of Nd:YAG laser energy. The dogs were euthanatized 1 week (n = 6), 1 month (n = 7), and 6 months (n = 7) after surgery. Plastic‐embedded, undecalcified histologic sections of each cartilage defect were examined for evidence of cartilage healing. Special stains were used to determine the type of repair tissue present, and morphometric measurements of repair tissue were made. No effect of Nd:YAG laser therapy on cartilage healing was noted.

Original languageEnglish (US)
Pages (from-to)595-601
Number of pages7
JournalLasers in Surgery and Medicine
Volume9
Issue number6
DOIs
StatePublished - 1989

Keywords

  • biostimulation
  • cartilage regeneration
  • low‐dose laser therapy

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