足副舟骨扭伤的影像学特征  

Imaging features of foot accessory scaphoid bone sprain

作　　者：胡觉清 

机构地区：[1]解放军海军机关门诊部放射科,北京100841

出　　处：《临床军医杂志》2013年第10期1064-1065,1076,共3页Clinical Journal of Medical Officers

摘　　要：目的总结51例足副舟骨DR摄影的影像学特征。方法 51例患者均有足副舟骨扭伤史。均摄患足X线足正位和外斜位片,其中21例加照对侧足外斜位以鉴别骨折。结果 51例足副舟骨影像学表现较多样,主要分3型:Ⅰ型为圆形或卵圆形籽骨27例(52.9%),与舟骨完全分离;Ⅱ型与足舟骨通过纤维软骨或软骨相连21例(41.2%);Ⅲ型也称舟骨角型3例(5.9%)。Ⅰ型和Ⅲ型足副舟骨影像学表现清晰,而Ⅱ型影像学表现复杂,不易确诊。结论足副舟骨的影像学表现较复杂多样,尤其Ⅱ型足副舟骨的X线表现易误诊为骨折,需加照健侧副舟骨以鉴别骨折,必要时行CT、MRI或核素扫描以确诊。足正位和外侧斜位可以清晰显示舟骨结节和副舟骨之间的关系,可以作为足副舟骨影像学检查的首选方法。Objective To summarize the DR imaging features of foot accessory scaphoid bone sprain. Methods Fifty-one pa-tients, whose foot accessory scaphoid bone had been sprained, were studied. X-ray films of lateral and outer oblique position were taken in all the patients, among whom 21 were additionally taken X-ray films of eontralateral feet of outer oblique position for the judgement of fracture. Results The manifestations were varied for the 51 patients. They were mainly divided into three types. Type Ⅰ , which was found in 27 （ 52.9% ） patients, was characterized by round or ovoid sesamoid bones, completely separated from scaphoid bones. Type Ⅱ , which was found in 21 （41.2%） ones, was characterized by the connection of scaphoid bones with fi-brocartilage or cartilage. Type Ⅱ, which was found in 3 （5.9%） patients, was also considered as scaphoid-angle type. The ima-ging manifestations for type Ⅰ and type Ⅲ were very clear while it was very difficult to judge Type Ⅱ. Conclusion The imaging manifestation of foot accessory scaphoid bone is very complicated, especially in Type Ⅱ , which may be easily misdiagnosed as frac-ture. It is necessary to take X-ray for contralateral scaphoid in order to judge fracture. If necessary, CT, MRI or radioisotope scan- ning may also be used. Lateral and outer oblique positions may provide clear pictures of scaphoid tuberculum and accessory scaphoid, and therefore may be the positions of choice.

关 键 词：足副舟骨 X线表现 

分 类 号：R683.42[医药卫生—骨科学]