Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18584
Title: Therapeutic ultrasound improves strength of achilles tendon repair in rats
Authors: Ng, COY
Ng, GYF 
See, EKN
Leung, MCP
Keywords: Assessment
Biomechanics
Function
Healing
Rats
Tendon
Treatment
Ultrasound
Issue Date: 2003
Publisher: Elsevier
Source: Ultrasound in medicine and biology, 2003, v. 29, no. 10, p. 1501-1506 How to cite?
Journal: Ultrasound in medicine and biology 
Abstract: The purpose of this study was to evaluate the effects of therapeutic ultrasound on structural properties and functional performance of Achilles tendon healing. Thirty Sprague-Dawley rats with surgical hemitransected Achilles tendon were studied. Ten were treated daily with 1 MHz continuous ultrasound at 1.0 W/cm2 for 4 min, 11 at 2.0 W/cm2 for 4 min and nine served as control without treatment. Achilles functional index (AFI) was recorded preoperatively and on postoperative days 3, 10 and 30. On day 30, the rats were sacrificed and Achilles tendons were tested for load-relaxation, stiffness and ultimate tensile strength (UTS). Results showed that UTS of both low-dose (p = 0.023) and high-dose (p = 0.002) groups was significantly greater than in controls. No significant differences in AFI (p = 0.179), load-relaxation (p = 0.205) and stiffness (p = 0.842) were found among groups. These findings suggested that both low- and high-dose therapeutic ultrasound accelerate the healing process of ruptured tendon.
URI: http://hdl.handle.net/10397/18584
ISSN: 0301-5629
EISSN: 1879-291X
DOI: 10.1016/S0301-5629(03)01018-4
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