Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (37): 6975-6978.doi: 10.3969/j.issn.1673-8225.2010.37.032

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Exercise therapy following repair of tendon rupture: Histological and biomechanical evaluation

Feng Xiang-yu, Lin Zhi-feng, Xiao Zhi-lin, Shen Jing-hui, Luo Huan-ming   

  1. Department of Orthopaedics, Nanhai Huangqi Hospital, Foshan  440682, Guangdong Province, China
  • Online:2010-09-10 Published:2010-09-10
  • About author:Feng Xiang-yu, Associate chief physician, Department of Orthopaedics, Nanhai Huangqi Hospital, Foshan 440682, Guangdong Province, China gdnhfxy@yahoo.cn
  • Supported by:

     the Foundation of Science and Technology Bureau of Foshan City, No. 200808101*

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Abstract:

BACKGROUND: Open rupture of Achilles tendon after repair operation needs a long time to recovery, with many complications, and the functional recovery is unsatisfactory. There is not a systematic, scientific, simple, and easy exercise therapy for rehabilitation.
OBJECTIVE: To observe the effect of exercise therapy on the morphology and mechanical properties of Achilles tendon after repair.
METHODS: Totally 48 Japanese white rabbits were randomly divided into braking group and exercise group. Rabbits were established tendon injury models by cutting the Achilles tendon at 2.0 cm insertional Achilles tendon. The tendon tissues were sutured with suture line. Braking group used the traditional plaster bandages bit long legs pedal the gravity cast fixation, while exercise group uses no fixation. Samples were taken from the Achilles tendon at 7, 14 and 21 days after operation, the tendon adhesion and the maximum fracture stress were observed.
RESULTS AND CONCLUSIONS: Tendon adhesion was more obvious in the braking group than that of the exercise group (P < 0.05). The maximum fracture stress of the exercise group was significantly higher than that of the braking group (P < 0. 05). Results show that, in the process of tendon healing, the early dynamic stress stimulation can promote tissue healing and reduce complications.

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