Taneda H
Department of Orthopaedic Surgery, Saitama Medical School, Japan.
Nihon Seikeigeka Gakkai Zasshi. 1987 Nov;61(11):1219-26.
Trabecular structure of the acetabulum was studied in adult cadavers by means of image analysis. Two groups of trabecular patterns were distinguished in terms of orientation with reference to the frontal plane: one group runs concentric to the articular surface of the acetabulum, and the other rises perpendicular from it and runs radially. The density of the trabeculae tends to decrease with age, and density differences with age are more marked in non-weight-bearing than in weight-bearing regions. Older females, in comparison with males of the same age group, show lower trabecular density in non-weight-bearing regions. Regional differences were also noted with higher density in the anterosuperior and posteroinferior regions, decreasing centripetally from the margin of the acetabular fossa. The average density in weight-bearing regions was 6 per cent higher than that of non-weight-bearing regions. According to these findings, the trabecular pattern of the acetabulum has a structure responding to compressive and tensile stresses applied to the hip joints.
通过图像分析对成年尸体髋臼的小梁结构进行了研究。根据相对于额平面的方向区分出两组小梁模式：一组与髋臼关节面同心，另一组从关节面垂直升起并呈放射状延伸。小梁密度往往随年龄增长而降低，与承重区域相比，非承重区域的密度随年龄的差异更为明显。与同年龄组男性相比，老年女性非承重区域的小梁密度较低。还注意到区域差异，髋臼窝边缘的前上和后下区域密度较高，向中心递减。承重区域的平均密度比非承重区域高6%。根据这些发现，髋臼的小梁模式具有一种结构，可应对施加于髋关节的压缩和拉伸应力。
