Kallela I, Hyrkäs T, Paukku P, Iizuka T, Lindqvist C
Department of Oral and Maxillofacial Surgery, Helsinki University Central Hospital, Finland.
J Craniomaxillofac Surg. 1994 Aug;22(4):220-5. doi: 10.1016/s1010-5182(05)80561-x.
Clinical and computerized tomography (CT) findings in 10 patients with post-traumatic blindness after maxillofacial blunt trauma were evaluated as potential candidates for optic nerve decompression surgery. The total number of blind eyes was 14. All patients suffered from midfacial fractures (isolated zygomatic fracture in 4 and Le Fort fracture in 6 cases) predominantly caused by road traffic accidents. CT scanning and clinical findings allowed location of damage to the optic nerve region in all patients. The most common CT finding was swelling of the optic nerve. Fracture in the optic canal wall was seen in only 3 cases. The clinical situations characteristic of this type of injury make diagnosis and early surgical intervention difficult. It was concluded that two of the 10 patients might have benefitted from optic nerve decompression.
对10例颌面钝器伤后创伤性失明患者的临床及计算机断层扫描（CT）结果进行评估，以确定其作为视神经减压手术潜在候选者的可能性。失明眼睛总数为14只。所有患者均患有面中部骨折（4例为单纯颧骨骨折，6例为Le Fort骨折），主要由道路交通事故引起。CT扫描和临床检查结果使所有患者视神经区域的损伤得以定位。最常见的CT表现是视神经肿胀。仅3例患者可见视神经管骨折。此类损伤的临床情况使诊断及早期手术干预变得困难。得出的结论是，10例患者中有2例可能从视神经减压术中获益。
