Citak M, Kendoff D, Kfuri M, Pearle A, Krettek C, Hüfner T
Hannover Medical School, Hannover, Germany.
J Bone Joint Surg Br. 2007 Mar;89(3):323-6. doi: 10.1302/0301-620X.89B3.18424.
The aim of this pilot study was to evaluate the accuracy of two different methods of navigated retrograde drilling of talar lesions. Artificial osteochondral talar lesions were created in 14 cadaver lower limbs. Two methods of navigated drilling were evaluated by one examiner. Navigated Iso-C(3D) was used in seven cadavers and 2D fluoroscopy-based navigation in the remaining seven. Of 14 talar lesions, 12 were successfully targeted by navigated drilling. In both cases of inaccurate targeting the 2D fluoroscopy-based navigation was used, missing lesions by 3 mm and 5 mm, respectively. The mean radiation time was increased using Iso-C(3D) navigation (23 s; 22 to 24) compared with 2D fluoroscopy-based navigation (14 s, 11 to 17).
这项初步研究的目的是评估两种不同的距骨病变导航逆行钻孔方法的准确性。在14具尸体下肢上制造人工距骨骨软骨损伤。由一名检查者评估两种导航钻孔方法。7具尸体使用Iso-C（3D）导航，其余7具使用基于二维荧光透视的导航。在14个距骨病变中，12个通过导航钻孔成功定位。在两次定位不准确的情况下，均使用了基于二维荧光透视的导航，分别错过病变3毫米和5毫米。与基于二维荧光透视的导航（14秒，11至17秒）相比，使用Iso-C（3D）导航时平均辐射时间增加（23秒；22至24秒）。
