Scanning electron microscopy of superficial defects in articular cartilage

Abstract

The remodelling of the surface of partial thickness defects in the articular cartilage of immature rabbits was studied with the scanning electron microscope. At the end of 6 mth the floor of the defect was covered by a homogeneous fine textured material which obliterated the chondrocyte lacunae exposed when the defect was made. Over the floor of the defect lay numerous sheets, bands, and ropelike and threadlike formations (flow formations) believed to be produced as a result of cartilage flow engendered by load bearing and joint movement.