Bone scan using 99mTc-MDP is the most accurate and reliable method for the early detection of fracture, and give the most accurate information about the healing process of fractured bone. Recent days, the medicolegal problem about the jnjured time is freuqently provoked in vertebral fracture patient by trauma. The authors analyzed the bone scna of vertebral fracture patients from March to December, 1983. The Authors obtained results as follows : 1. The minimum time for a fracture to return to normal on a bone scan was 4 month in cerical spine 2. It was 12 month in thoracic spine. 3. It was 6 month in lumbar spine. 4. Surrounding soft tissued injury was healed within 10 days after trauma in our cases. 5. Focal hot uptake is persisted in case of callus deposition on plain film, although very small in amount. 6. Healing time is delayed in case of severely compressed vertebral body, belowed the half than normal height. 7. With bone scan, it is possble to differentiate the fresh fracture from old healed fracture, impossible by plain film. 8. Healing time is delayed in old age.