Abstract: Objective To expound the injury-disease relationship between spondylolysis and trauma for the points of forensic identification. Methods Total 26 cases of spondylolysis were collected and the characteristics of this disease such as age, accompanied symptoms, treatment and injury manner were discussed. Results The causal relationship existed between trauma and injury consequence in 2 appraised individuals and both of them aged less than 50 years old. The injury manners of both were high-energy injury with combined injury and these 2 patients were treated by operation. Conclusion The analysis of injury-disease relationship between spondylolysis and trauma should be paid attention in the middle-young age under 50 years old. More importantly, the injury-disease relationship should be analyzed in the patients who chose operative treatment.

Key words: forensic medicine, spinal injuries, trauma, spondylosis, injury-disease relationship