A mediolateral view of radiological image in control group (A) Immediately post –operation, shows a radiolucent segmental defect area appeared at the mid shaft of radius bone. (B) At 2nd week post –operation, shows the proximal and distal ends of the radius bone segments with a mild periosteal reaction. (C) At 4th week post –operation, shows thickening of both ends of the defect with callus formation directed from the proximal end of the radius defect towards the defect center and attached with the ulna. (D) At 6th week post –operation, callus formation was increased from the proximal end of the radius defect sloped to the center of the defect and fused with ulna. (E) At 8th week post –operation, mild periosteal reaction in the radius defect’s distal end. (F) At 12th week post –operation, the sloping callus from the radius defect’s proximal end to its center was continuously growing with radio-ulnar synostosis.