articular cartilage of a long bone is found at the ends of epiphyses.
articular cartilage of a long bone is found at the ends of epiphyses.
where is articular cartilage of a long bone found?
the ends of epiphyses
the long bones are those that are longer than they are wide. they are one of five types of bones: long, short, flat, irregular and sesamoid. long bones, especially the femur and tibia, are subjected to most of the load during daily activities and they are crucial for skeletal mobility. they grow primarily by elongation of the diaphysis, with an epiphysis at each end of the growing bone. the ends of epiphyses are covered with hyaline cartilage ("articular cartilage"). the longitudinal growth of long bones is a result of endochondral ossification at the epiphyseal plate. bone growth in length is stimulated by the production of growth hormone (gh), a secretion of the anterior lobe of the pituitary gland.
long bone
articular cartilage stem cell paste grafting was initially described by kevin r. stone m.d., a san francisco-based orthopedic surgeon, in 1997 . the technique was devised in response to reports that many of the contemporary cartilage restoration procedures lead to the development of fibrocartilage, not true hyaline articular cartilage. knowing that fibrocartilage was not as durable as articular cartilage and that its formation yielded only short term clinical benefits, stone proposed his paste grafting as a means of regenerating hyaline-like cartilage. the hypothesis was that harvesting a mixture of articular cartilage and cancellous bone would combine pluripotent cells of the cancellous bone with cartilage extracellular matrix and growth factors and when exposed to continuous motion, hyaline-like cartilage would be stimulated to form.
articular cartilage stem cell paste grafting