Research On The Size Of External Force And A Linear Black Signal Area Of STIR Image In MRI Of Thoracic And Lumbar Vertebral Compression Fractures

Objective:To explore the relationship between the size of external force and a linear black signal area of STIR image in MRI of thoracic and lumbar osteoporosis vertebral compression fractures.Methods:The hospitalized patients were retrospectively analyzed from September 2013 to September 2016 in our hospital spine surgery hospital,and they were diagnosed as thoracic and lumbar osteoporosis vertebral compression fractures.all the patients were divided into three group according to the different trauma history:No obvious external force group(without apparent cause,without external force,etc),low energy group(sprains,bent down to lift heavy objects,carry heavy items,etc.),high energy group of external force(flat road down hips touchdown,falls,bumps,etc),Spss17 was used for analyzed gender,age,fracture site(thoracic lumbar segment and thethoracic lumbar segment),the number of the vertebral and the position where would they occur with a linear black signal area of STIR image in MRI.age was analyzed by analysis of variance.gender,fracture site and the number of the vertebral and the position were analyzed by Pearson chi-square test.Results:All the 782 cases,there were 334 in group no obvious external force which a linear black signal area of STIR image in MRI exist were 114 cases.186 cases in low energy group which a linear black signal area of STIR image in MRI exist were 124 cases,262 cases in high energy group which a linear black signal area of STIR image in MRI exist were 87 cases.The ages,gender,fracture site and the number of the vertebral and the position in three groups,there was no statistically significant difference(P>0.05).When compared three groups of a linear black signal area of STIR image in MRI exist or not,there were obvious statistical significance(P<0.05).So three groups were compared to each other,divide the P value and reduce the inspection level(??=0.05/3=0.017).low energy group wee compared to no obvious external force group and the high energy group differentiate,the difference had obvious statistical significance(P<0.017).when no obvious external force group compared to high energy group,the difference had no statistical significance(P>0.017).the linear black signal area of STIR image in MRI occur rate was 66.67%and higher than other 43.11% and 33.12%.Conclusion:In the history of trauma,low energy in external force have more opportunity to occur a linear black signal area of STIR image in MRI than no obvious external force and high energy in external force.And they often occur in thoracic and lumbar osteoporosis vertebral compression fractures.