Biomechanics Analysis And Differential Diagnosis To The Imaging Appearance Of Spine Injury In Trauma

objective to observe different signs of compression fracture under different states(traumatic occlusion, osteoporosis, metastatic tumor), reveal different biomechanics characteristic through analysis different signs. Summarize differential diagnosis value of different states from view angle of biomechanics. Method all patients be divided into three groups: traumatic group(23 cases);osteoporosis group(20 cases) and metastatic tumor group(21 cases), plain film CT MR were performed in all cases. Observing different signs of every group and making statistical treatment to incidence rate of some signs among three groups. Result the signs by observed and registered include fracture type, post-prominence of posterior border, vertebral canal narrowing, spinal cord degeneration, intervertebral disc injury, anomaly signal inside pedicle of vertebral arch, anormaly signal inside other body of vertebra and pedicle of vertebral arch, anormaly signal of soft tissue in post-body of vertebra. Every signs reflect distinct biomechanics characteristic of compression vertebral body in different states. The rates of signs are significant different among three groups(P<0.05 or P<0.025) except the rates of anormaly signal of soft tissue(P>0.05) and anormaly signal inside other body of vertebra (P>0.025) . The anormaly signal inside pedicle of vertebral arch has more important significance which reflecting different biomechanics feature of vertebral body in different states. Conclusion The vertebrae compression fracture in different states have different biomechanics feature which can be disclosed by different imaging appearance. The anormaly signal inside pedicle of vertebral arch can not only clearly show the biomechanics characteristic of vertebral body, but also can become a new method which be used for differential diagnosis in different type vertebrae compression fracture.