Jiang C C, Hang Y S, Liu T K, Wen C Y
Department of Orthopedic Surgery, National Taiwan University, Taipei, R.O.C.
J Formos Med Assoc. 1994 Mar;93(3):266-8.
The purpose of this study was to inspect the three-dimensional structure of the epiphyseal scar of the femoral head. Three adult human femoral head specimens with a dense epiphyseal scar shown by radiography were used to study the morphology of the scar. One femoral head was cut in the coronal plane to show the cross-section. A trabecular pattern in the femoral head was demonstrated by radiography. The second femoral head specimen, was cut by a wafering saw in a plane parallel to the epiphyseal scar into 1.5 mm thick slices. Microradiographs of these specimen slices were taken to trace the scar from the proximal part of the femoral head to its distal end. In the third specimen, the epiphysis was chipped away to uncover the whole epiphyseal scar for a topographic examination by dissecting microscope and scanning electron microscope. The epiphyseal scar was found to consist of multiple layers of plate-like bony structure capping the metaphysis similar to an inverted cup with a defect adjacent to the fovea. Differences between the trabecular pattern in the epiphysis and metaphysis were distinctive. These morphologic characteristics of the femoral head should be taken into account when investigating stress distribution in the femoral head.
本研究的目的是观察股骨头骨骺瘢痕的三维结构。使用三个成年人体股骨头标本，其骨骺瘢痕在X线片上显示致密，以研究瘢痕的形态。将一个股骨头在冠状面切开以显示横截面。通过X线片显示股骨头的小梁模式。第二个股骨头标本，用薄片锯在平行于骨骺瘢痕的平面切成1.5毫米厚的切片。拍摄这些标本切片的显微放射照片，以追踪瘢痕从股骨头近端到远端的情况。在第三个标本中，将骨骺凿去以暴露整个骨骺瘢痕，通过解剖显微镜和扫描电子显微镜进行地形学检查。发现骨骺瘢痕由多层板状骨结构组成，覆盖干骺端，类似于一个倒置的杯子，在中央凹附近有一个缺损。骨骺和干骺端的小梁模式差异明显。在研究股骨头的应力分布时，应考虑股骨头的这些形态学特征。
