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      The hip joint: the fibrillar collagens associated with development and ageing in the rabbit.

      1 ,
      Journal of anatomy
      Wiley

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          Abstract

          The fibrillar collagens associated with the articular cartilages, joint capsule and ligamentum teres of the rabbit hip joint were characterised from the 17 d fetus to the 2-y-old adult by immunohistochemical methods. Initially the putative articular cartilage contains types I, III and V collagens, but when cavitation is complete in the 25 d fetus, type II collagen appears. In the 17 d fetus, the cells of the chondrogenous layers express type I collagen mRNA, but not that of type II collagen. Types III and V collagens are present throughout life, particularly pericellularly. Type I collagen is lost. In all respects, the articular cartilage of the hip joint is similar to that of the knee. The joint capsule contains types I, III and V collagens. In the fetus the ligamentum teres contains types I and V collagens and the cells express type I collagen mRNA; type III collagen is confined mainly to its surface and insertions. After birth, the same distribution remains, but there is more type III collagen in the ligament, proper. The attachment to the cartilage of the head of the femur is marked only by fibres of type I collagen traversing the cartilage; the attachment cannot be distinguished in preparations localising types III and V collagens. The attachment to the bone at the lip of the acetabulum is via fibres of types I and V collagens and little type III is present. The ligament is covered by a sheath of types III and V collagens. Type II collagen was not located in any part of the ligamentum teres. The distribution of collagens in the ligamentum teres is similar to that in the collateral ligaments of the knee. Its insertions are unusual because no fibrocartilage was detected.

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          Author and article information

          Journal
          J Anat
          Journal of anatomy
          Wiley
          0021-8782
          0021-8782
          Jan 2001
          : 198
          : Pt 1
          Affiliations
          [1 ] Department of Anatomy, St George's Hospital Medical School, London, UK.
          Article
          10.1046/j.1469-7580.2001.19810017.x
          1468187
          11215763
          cb35e78e-4980-4b56-86e1-67212e68e711
          History

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