【摘要】 作者分析４２３例眼眶骨折的临床与ＣＴ资料。根据骨折的特点将眼眶骨折分为三类，即爆裂骨折、直接骨折及复合型骨折。爆裂骨折最多见，占５２．７２％，骨折发生于眶内、下壁，以单壁骨折较多。直接骨折占３０．０２％，以单壁骨折多见，并以外壁骨折较多。复合型骨折占１７．２６％，各壁均可发生，均为多壁骨折。眼眶骨折的直接征象是眶壁骨质连续性中断、粉碎及移位。副鼻窦内“泪滴”征是诊断眼眶下壁骨折的特异性间接征象。由于眶骨折后软组织变化（眼外肌）及邻近骨折的改变与治疗方法及预后直接相关，因此对ＣＴ征象的观察应全面。此外，作者还对目前眼眶ＣＴ检查存在的问题进行了讨论。更多还原

【Abstract】 The clinical and CT findings of 423 patients with orbital fracture were studied.Ac-cording to the features of orbital fracture,they were classified into three catagories-blownout frac-ture,direct fracture and complicated fracture,The blown-out fracture was the most common,consti-tuting 52.72%,Most blown-out fractures involved the orbital floor. Less often the medial orbital wall was fractured either singly or in conjunction with fracture of the floor. Direct fractures consti-tuted 30.02%,Most direct fractures involved only the lateral wall. Complicated fractures comprised 17.26%。Most complicated fractures involved muItiple walls. Interruption of bome continuity,frag-ments and displacement of bone fragments were the direct signs. Teardrop appearance in the maxil-lary sinus was a specific indirect sign of inferior orbital fracture. In addition,the problems associated with CT scanning were also discussed.更多还原