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The Change of the Mechanoreceptors of Injured Achilles Tendon According to the Immobilization Periods  

Yoo, Jong-Min (Department of Orthopaedic Surgery, Seoul St. Mary's hospital, Catholic University of Korea)
Chung, Jin-Wha (Department of Orthopaedic Surgery, Seoul St. Mary's hospital, Catholic University of Korea)
Yoon, Ki-Syck (Department of Orthopaedic Surgery, Seoul St. Mary's hospital, Catholic University of Korea)
Chu, In-Tak (Department of Orthopaedic Surgery, Seoul St. Mary's hospital, Catholic University of Korea)
Publication Information
Journal of Korean Foot and Ankle Society / v.14, no.1, 2010 , pp. 1-4 More about this Journal
Abstract
Purpose: This study was designed to determine the quantitative changes of the numbers of the mechanoreceptors in the experimentally tenotomized Achilles tendon of rabbits as compared with short-term immobilization and long-term immobilization. Materials and Methods: 14 white rabbits were used. After tenotomizing the right Achilles tendon, the subjects were divided into 2 groups according to the periods of immobilizaton. The left side of each Achilles tendon of the rabbits were used as controls. The tendons were stained with a modified gold-chloride method. Results: The number of mechanoreceptor was significantly decreased in the tenotomized Achilles tendon group than the control group (p<0.01). There was no statistical difference between the two experimental groups in the numbers of the mechanoreceptors (p>0.01). Conclusion: The injured Achilles tendons may more vulnerable to injury because of the decreased numbers of mechanoreceptors, but no difference between the periods of immobilization. It may suggest that post-operative immobilization period may not affect on the outcome of operative treatment from the viewpoint of mechanoreceptors.
Keywords
Mechanoreceptor; Achilles tendon; Immobilization;
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