new aspect for the cancellous structure of the human talus

ABSTRACT

In the present work, 42 adult dry talus of unknown sex were used to study the cancellous bone architecture. Parasagittal, coronal and horizontal sections were cut in the bones and by using dissection microscope and radiographs of the slices the trabecular architecture was studied. It was found that the cancellous architecture of the talus consisted of two sets of lamellae. [A] vertical lamellae extend from the trochlear to the posterior calcanean facets. They transmit body weight to the calcaneus during standing. [B] axial lamellae formed of medial and lateral pillar lamellae in the body, axial lamellae in the neck and fan shaped [semiarched] lamellae in the head. These axial lamellae transmit body weight during walking. The axial lamellae at the neck pass with the axis of the inversion and eversion of the foot and load the center of body wight. This structure must be taken in consideration in management of talar fractures and in making perfect talar prosthesis