Gigante A, Specchia N, Greco F
Department of Orthopaedics, Catholic University of the Sacred Heart, Rome, Italy.
Clin Orthop Relat Res. 1994 Nov(308):33-42.
The distribution and histochemical properties of elastic fibers in the knee of newborn, young, adult, and old New Zealand White rabbits were studied. In the growing rabbit, elastic fibers, especially oxytalan fibers, are abundant in the perichondrium and the fibrous layer of the periosteum. They are homogeneously distributed in tendons, ligaments, and menisci, and are absent in the epiphyseal cartilage and growth plate and at the enthesis. In mature rabbits, the articular capsule, the synovial membrane, the peritenon, the periosteum, the perimysium, and the perivascular connective tissue are rich with elastic fibers. They are rarer in the tendon and are absent at the enthesis, in bone and articular cartilage. In the meniscus, the fibers are distributed centripetally. The distribution of elastic fibers is probably related to the different functional role and biomechanical behavior of each tissue. Finally, the type of elastic fiber in the various tissues changes with age; younger animals have more oxytalan fibers than adult animals. A gradual process of maturation and specialization of the network of elastic fibers takes place with age.
研究了新生、幼年、成年和老年新西兰白兔膝关节中弹性纤维的分布和组织化学特性。在生长中的兔子中，弹性纤维，尤其是耐酸纤维，在软骨膜和骨膜的纤维层中丰富。它们均匀分布于肌腱、韧带和半月板，在骨骺软骨、生长板和附着点处不存在。在成熟兔子中，关节囊、滑膜、腱周组织、骨膜、肌束膜和血管周围结缔组织富含弹性纤维。它们在肌腱中较少见，在附着点、骨骼和关节软骨中不存在。在半月板中，纤维呈向心性分布。弹性纤维的分布可能与每个组织的不同功能作用和生物力学行为有关。最后，各组织中弹性纤维的类型随年龄变化；幼年动物比成年动物有更多的耐酸纤维。随着年龄的增长，弹性纤维网络会发生逐渐成熟和特化的过程。
