Hammoudeh M, Rahim Siam A, Khanjar I
Department of Medicine, Hamad General Hospital, Doha, Qatar.
Clin Rheumatol. 1995 Jul;14(4):464-6. doi: 10.1007/BF02207683.
Spinal involvement in spondyloarthropathy is characterized by inflammation concentrated at the site of bony insertion of ligaments and bones. These inflammatory sites show a peculiar tendency towards prominent fibrosis, ossification and new bone formation (syndesmophytes). The syndesmophytes arise either at the margins of intervertebral disc and these are called marginal syndesmophytes as in ankylosing spondylitis, or from the vertebral bodies beyond their corners and are called nonmarginal syndesmophytes as in psoriatic arthritis and Reiter's syndrome (1,2). In some references and in the European literature, the term 'syndesmophyte' is usually reserved for the vertical ossification that bridges two adjacent vertebrae in ankylosing spondylitis (3). Syndesmophytes predominate on the anterior and lateral aspect of the spine (1-3). We report a patient with undifferentiated spondyloarthropathy with posterior syndesmophytes resulting in symptomatic spinal stenosis.
脊柱关节病的脊柱受累特征为炎症集中在韧带和骨骼的骨附着部位。这些炎症部位呈现出显著的纤维化、骨化和新骨形成（骨桥）的特殊倾向。骨桥要么出现在椎间盘边缘，如强直性脊柱炎中的边缘骨桥，要么从椎体角以外的椎体产生，如银屑病关节炎和赖特综合征中的非边缘骨桥（1,2）。在一些参考文献和欧洲文献中，“骨桥”一词通常仅用于描述强直性脊柱炎中连接两个相邻椎体的垂直骨化（3）。骨桥在脊柱的前侧和外侧更为常见（1-3）。我们报告一例未分化脊柱关节病患者，其后方出现骨桥，导致症状性椎管狭窄。
