Repair of Bone Defects caused by various Fractures: Delayed Union, Nonunion or Malunion of Fractures. Bone Defect Repair after Secondary Surgery. Filling and Repairing various Small Area Bone Defects of the Skull. Bone Grafting or Bone Defect Repair during Spinal Fixation and Fusion. All Kinds of Osteotomy Orthopedic Bone Graft Fusion. Other types of Bone Defect Repair without Bone Graft Contraindications.