摘要
目的:探讨飞行员腰椎峡部裂的发生原因和发病机制。方法:招飞学员中30例腰椎峡部裂患者(研究组)采用CR、DR机行立位拍摄腰椎正、侧位及双斜位X线片,其中9例并行腰椎CT扫描。分析合并腰骶部隐裂发生率,并与对照组进行比较;分析L5峡部及椎板结构特点,并与L4进行对照。结果:(1)研究组腰骶部隐裂发生率为56.67%(17/30),与对照组26.00%(26/100)比较差异有统计学意义(P<0.05)。(2)X线斜位片示L5峡部裂隙形态呈多样性如线型、尖角型、缺损型、星型。(3)L5峡部及裂隙两端骨质发育细小、变尖甚至呈缺损改变。(4)CT检查二、三维重建可清晰显示峡部裂断端立体形态和骨质结构。结论:本组腰椎峡部裂的发病原因为先天性发育异常所致。
Objective To study the etiology and pathogenesis of spondylolysis of lumbar laminar isthmus in aviation students.Methods Thirty aviation students with lumbar spondylolysis were taken front,lateral and double oblique views of the lumbar spine in erect position using CR or DR.Additional CT scan was performed in 9 cases with 2D and 3D reconstructions.The results were analyzed and compared with neighboring L4 lumbar vertebra in terms of bony architecture of lamina and isthmus.The incidence of lumbo-sacral spinal tifida occulta in the study group was also compared with that of the normal control group.Results（1） In this study group,the incidence of lumbo-sacral spinal bifida occulta was 56.67%（17/30）,which was significant different from that in the normal control group（26.00%（26/100））（P0.05）.（2）On oblique views,the configuration of the isthmus cleft of L5 had various appearances,as linear,pointed ends,defect and stellate types.（3） Developmental anomalies including small and slender isthmus,pointed ends of cleft and bony defect were demonstrated at the L5 lumbar vertebra.（4） CT scan with 2D and 3D reconstructions clearly demonstrated the 3D configuration of the cleft ends and bony architecture.Conclusion Spondylolysis of lumbar laminar isthmus is congenital in these 30 cases.
出处
《中华实用诊断与治疗杂志》
2011年第4期331-333,共3页
Journal of Chinese Practical Diagnosis and Therapy
基金
全军科研基金项目(BKJ10J039)
关键词
腰椎峡部裂
飞行学员
X线诊断
病因
Lumbar spine spondylolysis
aviator
aviation students
X-ray diagnosis
etiology
