Objective To investigate the prevalence of lumbosacral transitional vertebrae between the normal people and the low back pain patients and its clinical characteristics. Methods There were 222 patients found lumbosacral transitional vertebrae in 2 215 patients undergoing plain film for trauma (group A). And 141 patients were found with lumbosacral trasitional vertebrae in 517 patients hospitalized because of low back pain (group B). The comparison to various parameters was carried on according to the X-ray. Results The incidence of lumbosacral transitional vertebrae in group A was significantly lower than that of group B (P<0.05) , which waslO.02% (222/2 215) vs. 27.27 % ( 141/517) respectively. The incidence of Cas-tellvi I in group A was 35. 14% (78/222) .which was higher than 17. 73% (25/141) of group B(P<0.05). The incidence of Castellvi II in group A was 40. 09% (89/222) , which had no significant difference with 41. 13% (58/141) ofgroupB (P>0.05). Castellvi I of group A was 18. 47% (41/222) , lower than 28. 37% (40/141) of group B(P<0.05). And the Castellvi IVof group A was 6. 31% (14/222) , which was lower than 12. 77% (18/141) of group B(P <0. 05). Conclusions It indicates the etiologic significance of lumbosacral transitional vertebrae for low back pain. The largest number of lumbosacral transitional vertebrae was Castellvi II. The fusiun of the transverse and the sacrum, especially the un-symmetrical fusion, will increase the chances of low back pain.%目的 探讨正常人群与腰腿痛住院患者腰骶移行椎发生率及临床特点.方法 选取因外伤史患者摄腰椎X线平片的患者2215例(A组),发现腰骶移行椎222例(10.02％)；因腰腿痛住院的患者(B组)517例,发现腰骶移行椎141例(27.27％),并进行各参数统计学对比分析.结果 腰骶移行椎发生率A组为10.02％,B组为27.27％,两组间存在显著性差异(P＜0.05).A组和B组均以CastellviⅡ型最为多见(分别占40.09％和41.13％).A组Ⅰ型占35.14％ (78/222),明显高于B组Ⅰ型的17.73％(25/141),具有统计学意义(P＜0.05)；A组Ⅱ型占40.09％(89/222),略少于B组的41.13％(58/141),但无统计学意义(P＞0.05)；A组Ⅲ型占18.47％ (41/222),低于B组的28.37％(40/141),具有统计学意义(P＜0.05)；A组Ⅳ型占6.31％(14/222),低于B组的12.77％(18/141),具有统计学意义(P＜0.05).结论 腰骶移行椎与腰腿痛有密切相关性,以CastellviⅡ型最为多见.Castellvi Ⅲ型和Ⅳ型因横突与骶骨发生融合,特别是不对称融合,将增加产生腰腿痛机率.
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