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An ultrastructural study on anterior cruciate ligament reconstruction using autogenous patellar tendon grafts in dogs

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Abstract

An ultrastructural study was undertaken concerning morphological changes within the autografted patellar tendon (PT) after being transplanted to the anterior cruciate ligament (ACL) in mongrel dogs. After 4 weeks, the arrangements of both large and small collagen fibrils in the PT graft became disordered, and the number of inflammatory cells increased. However, the same PT grafts revealed postsurgical signs of newly-produced collagen fibrils around activated fibroblasts at 12 to 24 weeks. At 52 weeks after the transplantation, small collagen fibrils increased in both number and density, showing a remarkable morphological similarity to the collagen fibrils of normal ACL. These data indicate that the characteristics of the PT graft eventually resemble those of a normal ACL.

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Authors and Affiliations

  1. Department of Orthopedic Surgery, Wakayama Medical College, 27, Nanabancho, 640, Wakayama, Japan

    Hirotsugu Kojima, Syunji Sasaki, Tetsuya Tamaki, Hiroshi Kameda & Satoru Yamasaki

  2. Department of Anatomy, Kansai Shinkyu College, Kansai Academy of Medical Science, 2-11-1, Wakaba, Kumatoricho, Sennan-gun, 590-04, Osaka, Japan

    Michio Kimura

Authors
  1. Hirotsugu Kojima
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  2. Syunji Sasaki
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  3. Tetsuya Tamaki
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  4. Hiroshi Kameda
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  5. Satoru Yamasaki
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  6. Michio Kimura
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Kojima, H., Sasaki, S., Tamaki, T. et al. An ultrastructural study on anterior cruciate ligament reconstruction using autogenous patellar tendon grafts in dogs. Med Electron Microsc 27, 149–158 (1994). https://doi.org/10.1007/BF02348180

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  • DOI: https://doi.org/10.1007/BF02348180

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