[Crystallographic investigation of distraction callus (author's transl)]

Physical examination using electron diffraction and thermogravimetry was performed on the distraction callus of six metacarpal bones of sheep. Brushite was observed in this callus beside apatite, and the number of crystals found was less than in physiological nature bone. From the crystallographic point of view the distraction callus was found similar to the callus known in fracture healing.