Struktur und Ultrastruktur des Knorpels

Knese, Karl-Heinrich

doi:10.1007/978-3-642-95147-3_10

Cited by 10 publications

(4 citation statements)

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“…Comparison between the ultrastructural features of the chondrocytes in different lay ers of the articular cartilage revealed significant differences (2,3]. In addition, there is a distinct relation among form, function, and energy requirements of the chondrocytes in the different articular-cartilage zones [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Morphometric Evaluation of Chondrocyte Cavities in Normal and Prearthrotic Human Femoral Heads

Bertram

Lierse²

1991

Cells Tissues Organs

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In 25 human femoral heads, the structural changes in the chondrocyte cavities of prearthrotic cartilage were determined in three different layers by detailed morphometric evaluation. As examination parameters, the area, perimeter, diameter, and the form deviation from a circle (form PE) were chosen. In addition, we calculated the numeric cell density and the mean distance between two chondrocyte cavities. For intraindividual comparison, the same data were obtained from nondegeneratively changed cartilage areas of each femoral head. The main arthrotic regions were located in the weight-bearing area of the femoral head, particularly in the dorso- and ventrolateral quadrants. The number of chondrocyte cavities as well as the numeric cell density were decreasing from superficial to basal layers, whereas the mean distance between two chondrocyte cavities was increasing. Concerning these parameters, no significant differences were seen between the prearthrotic and control groups. We found that the chondrocyte cavities in the superficial layer in prearthrotic areas show a tendency to smaller volumes in comparison with nondegeneratively changed areas, whereas in the basal layer, no difference could be seen. We presume that the changes in the articular cartilage are not related to an insufficient supply of the cartilage with nutriments, but probably to the high mechanical strain applied to its surface.

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Section: Introductionmentioning

confidence: 99%

Morphometric Evaluation of Chondrocyte Cavities in Normal and Prearthrotic Human Femoral Heads

Bertram

Lierse²

1991

Cells Tissues Organs

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“…Longitudinal growth of a typical long bone results, almost exclusively, from the coordination of the separate processes of cartilaginous prolifera tion and maturation with those of subsequent osseous replacement and remodeling [Enlow, 1963 andKnese, 1970 provide excellent reviews]. Despite the wealth of biochemical and structural data at many levels of observation relating to such growth, several significant questions concerning the processes by which long bone growth is regulated remain unanswered.…”

Section: Introductionmentioning

confidence: 99%

Studies of long bone growth. I. Determination of differential elongation in paired growth plates of the rat

Moss-Salentijn¹

1974

Cells Tissues Organs

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“…Excluding definitions and classifications of chiefly human cartilage found in all introductory textbooks of histology, the recent brief reviews by Bertin (1958) and Gabe (1967) of recent vertebrate cartilages are noteworthy, as are those by 0rvig (1951, 1967) of the fossil tissues. The past decade was characterized by the appearance of several fine textual treatments of mammalian and avian cartilages, (Knese, 1970;Free man, 1973;Serafini-Fracassini and Smith, 1974;Hall, 1978;Stockwell, 1979;Brighton, Black, and Polack 1979;Beresford, 1981). Beyond question the most comprehensive treatment of mammalian and avian cartilages is that by Knese (1979), a true benchmark in the field.…”

Section: General Textsmentioning

confidence: 97%