Lepistö J, Mattila K, Nieminen S, Sattler B, Kormano M
Department of Surgery, Turku University Hospital, Finland.
J Hand Surg Br. 1995 Aug;20(4):539-42. doi: 10.1016/s0266-7681(05)80172-x.
18 consecutive patients suspected of and treated for an acute scaphoid fracture were examined by lowfield MRI. This showed 11 fractures while seven scaphoids were considered normal. T1 weighted images showed a fracture as an area of decreased signal intensity. Two radiologically obvious fractures produced normal MR images. These fractures proved to be the result of old trauma. A wide spectrum of additional traumatic lesions in the wrists, not detected by routine X-ray analysis, were also demonstrated. These included seven fragmented triangular fibrocartilages (TFC), torn scapho-lunate ligaments in four cases and one torn triquetro-lunate ligament. Bone bruises of other carpal bones and seven other carpal fractures were also detected. Low field MRI can be used to show scaphoid fractures and allows diagnosis of additional or simulating lesions.
对18例疑似急性舟骨骨折并接受治疗的连续患者进行了低场MRI检查。结果显示11例骨折，7例舟骨被认为正常。T1加权像上骨折表现为信号强度减低区。有2例放射学上明显的骨折，其MRI图像正常。这些骨折被证实是陈旧性创伤所致。同时还显示了一系列常规X线分析未检测到的腕部其他创伤性病变。其中包括7例三角纤维软骨复合体（TFC）破裂、4例舟月韧带撕裂和1例三角月韧带撕裂。还检测到其他腕骨的骨挫伤和7例其他腕骨骨折。低场MRI可用于显示舟骨骨折，并有助于诊断其他或类似病变。
