Healing of a Segmental Defect in the Rat Femur with Use of an Extract from a Cultured Human Osteosarcoma Cell-Line (Saos-2). A Preliminary Report*

Abstract
Devitalized extracts from cultured human osteosarcoma cells (Saos-2) can induce ectopic bone formation. The ability of an extract from Saos-2 cells to stimulate healing of an operatively created four-millimeter defect in the femoral diaphyses of rats was compared with that of collagen and th