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华西医学  2010 

颈椎后纵韧带骨化症的CT表现

, PP. 1664-1666

Keywords: 颈椎,椎管狭窄,后纵韧带骨化,体层摄影术,X线计算机

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Abstract:

【】目的探讨颈椎后纵韧带骨化症(OPLL)的CT表现及其诊断价值。方法回顾性分析2004年11月-2009年10月收治的6480例颈椎患者的CT图像资料,观察后纵韧带骨化块的形态、位置及与椎管的关系,计算椎管狭窄率。结果6480例颈椎CT图像中,37例发现OPLL,占0.57%(37/6480)。颈椎后纵韧带骨化块表现为点状、条状、线状、平板状、山丘状、蕈伞状及花边状,呈现局限型、节段型、连续型、混合型特点。C4、C5及C6为颈椎后纵韧带骨化常见位置。骨化块平均厚度为4.12mm,骨化块致椎管矢状径狭窄率为10.20%~49.18%,多位于椎管前方中间位置。椎管狭窄率>34.10%,临床症状明显。结论CT检查能较好地显示颈椎后纵韧带骨化块的特征及椎管的狭窄程度,是临床医生选择手术方案和术后评估预后的一种较好方法。?【Abstract】ObjectiveTostudytheCTmanifestationsofossificationofposteriorlongitudinalligament(OPLL)andtoevaluatediagnosticvalue.MethodsRetrospectiveanalysiswasmadeonthecervicalspineCTimagesof6480cases,and37casesofOPLLwerefound.Theshape,locationoftheossificationpiecesandthesagitaldiameterofcervicalspinalcanalandthestenoticratewereobservedandmeasured.ResultsTheossifiedpiecesweremanifestedasdots,belts,lines,boards,mounds,mushroomsandflowermarginsinshape.Theywerecontinuous,segmental,solitaryormixed.OPLLusuallywasfoundatC4,C5andC6.Theaveragethicknessoftheossifiedpieceswas4.12mm.Thespinalstenoticraterangedfrom10.20%to49.18%duetoOPLL.Theossifiedpieceswereoftenfoundatthemiddleofthebackedgeofcervicalvertebraebodies.Therewereobvioussymptomswhenthestenoticrateofsagitaldiameterofcervicalspinalcanalwasover34.10%.ConclusionCTisanoptimalmodalityfordiagnosisofOPLLofcervicalspineandcervicalspinalstenosis,andmayhelptheclinicianstoselectorvaluateoperationproject.

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