The effects of therapeutic ultrasound on tendon healing. A biomechanical study

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134 Citations (Scopus)


The effect of 1 MHz therapeutic ultrasound on the healing strength of tendons was studied in the tenotomized, repaired and immobilized right Achilles tendons of 26 rabbits. Twelve tendons were sonicated daily in continuous waves at a spatial averaged intensity of 1 W/cm-2 for 5 min. After nine consecutive treatments, the tendons were excised under anesthesia and compared biomechanically. Exposure to ultrasound induced a significant increase in both the tensile strength and the energy absorption capacity of the tendons. Although healing in rabbits may not translate directly to healing in humans, these findings suggest that surgically repaired human Achilles tendons may heal faster if ultrasound is applied during the early stages of healing.

Original languageEnglish
Pages (from-to)283-287
Number of pages5
JournalAmerican Journal of Physical Medicine and Rehabilitation
Issue number6
Publication statusPublished - 1989
Externally publishedYes


  • tendon healing
  • tensile strength
  • ultrasound

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation


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