老年性骨质疏松性胸椎骨折的X线诊断

Roentgen diagnosis of fractures of thoracic vertebrae due to senile osteoporosis

以１００例２０～４０岁胸椎正常患者侧位胸片的胸椎前（ａ）、中（ｃ）、后（ｐ）高度测值，计算ａ／ｐ、ｃ／ｐ、ｐｎ／ｐ（ｎ＋１）作为胸椎高度的正常参考值，评价了２８０例６０～９９岁老年人的胸椎，发现有胸椎椎体骨折者８１例，骨折椎体数１６１个。将骨折分四型：楔形，凹陷性、混合型和压碎型，四型骨折椎体数分别为３３、３３，２７和６８。年龄与脊椎畸形分数相关（男性ｒ＝０．４００５，女性ｒ＝０．４００８，Ｐ均＜０．００１）。

Abstract The anterior,central and posterior heights (a,c and p) of the vertebrae T4 to T11 of 50 male and 50 female subjects,aged 20 to 40 years,without a history or radiologic sign of osteoporosis or other metabolic bone disease and without other radiographic abnormalities of thoracic spine,were measured on chest radiographs and a/p,c/p and pn/pn+1 were calculated to construct the norms of heights of thoracic vertebrae.The theracic vertebrae of 280 elderly patients,aged 60 to 99 years,without a history of secondary osteoporosis,were assessed on the basis of the normative data mentioned above to detect vertebral fractures.Eighty-one cases of vertebral fractures were discovered.The authors classified the fractures into 4 types:wedge, biconcave,mixed and crush fractures.The number of fractures was 33,33,27 and 68 respectively.The age correlated with the vertebral deformation scores (r=0.4005 in male, r= 0.4008 in female).