Freund M, Harder B, Palmié S, Besch L, Hutzelmann A, Heller M
Klinik für Radiologische Diagnostik, Christian-Albrechts-Universität zu Kiel.
Rofo. 1997 Jan;166(1):24-9. doi: 10.1055/s-2007-1015372.
To evaluate the clinical value of sagittal 2D- and 3D-reformations of the talus with and without electronic disarticulation compared to axial slices.
23 patients with suspected traumatic lesions of the talus underwent 26 diagnostic CT examinations. Axial slices, sagittal reformations, and 3D-reformations without and with electronic disarticulation were performed. The sagittal 2D- and both types of 3D-reformations were compared to the axial slices with regard to their diagnostic information.
Axial slices showed involvement of articular facets in 25 cases. Sagittal and 3D-reformations after electronic disarticulation depicted 23 fractures (23/25), 3D-reformations without electronic disarticulation showed none (0/23). Subluxation of the talocalcaneal joint was only visualised on axial slices three times. One complete luxation of this joint was shown on axial slices, sagittal and 3D-reformations without disarticulation. It was not visualised on 3D-reformations after disarticulation.
The diagnosis must be made based on the axial slices, supported by sagittal reconstructions. 3D-reformations after electronic disarticulation provide a graphic, detailed and readily recognised image of the anatomy of transchondral fractures, and are very helpful in preoperative planning.
评估距骨矢状面二维和三维重建（有无电子关节离断）与轴位片相比的临床价值。
23例疑似距骨创伤性损伤患者接受了26次诊断性CT检查。进行了轴位片、矢状面重建以及有无电子关节离断的三维重建。将矢状面二维重建和两种类型的三维重建在诊断信息方面与轴位片进行比较。
轴位片显示25例有关节面受累。电子关节离断后的矢状面和三维重建显示23处骨折（23/25），无电子关节离断的三维重建未显示骨折（0/23）。距跟关节半脱位仅在轴位片上有3次显示。该关节的1例完全脱位在轴位片、无关节离断的矢状面和三维重建上显示。在关节离断后的三维重建上未显示。
诊断必须基于轴位片，并辅以矢状面重建。电子关节离断后的三维重建提供了软骨下骨折解剖结构的直观、详细且易于识别的图像，对术前规划非常有帮助。
