Figure 4.

Representative 3D reconstructions of micro-CT images at termination (day 21) for both autograft and allograft groups and in normal (a) and osteoporotic (b) rats are illustrated from the same tissue as Figure 2. Red circle indicates where original defect holes were created. At the right side of each image is the newly generated bone mass within the hole. All images are displayed as whole mass and thin layer of 10 slices (105 micrometers).