Martel W, Stuck K J, Dworin A M, Hylland R G
AJR Am J Roentgenol. 1980 Jan;134(1):125-35. doi: 10.2214/ajr.134.1.125.
The medical records and radiographs of the hands, wrists, and feet of 50 patients with psoriatic arthritis and 34 with erosive osteoarthritis were reviewed. Polyarticular arthrutis in psoriatics is often unilateral and the joints of a single ray may be selectively affected. Their erosions ten to occur at the "bare areas" of joints, whereas in erosive osteoarthritis it is the subchondral cortex that is primarily affected. Linear periosteal bone apposition is common in the latter. The distribution of arthritis, sites of bone erosion, and character of periosteal bone apposition form distinctive patterns in these conditions which are important in differential diagnosis.
回顾了50例银屑病关节炎患者和34例侵蚀性骨关节炎患者手部、腕部和足部的病历及X光片。银屑病患者的多关节关节炎通常为单侧性，且单条射线的关节可能会被选择性累及。其侵蚀往往发生在关节的“裸区”，而在侵蚀性骨关节炎中，主要受累的是软骨下皮质。后者常见线性骨膜骨附着。在这些疾病中，关节炎的分布、骨侵蚀部位以及骨膜骨附着的特征形成了独特的模式，这对鉴别诊断很重要。
