The Reliability and Variation of Acetabular Component Anteversion Measurements From Cross-Table Lateral Radiographs
The Reliability and Variation of Acetabular Component Anteversion Measurements From Cross-Table Lateral Radiographs
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DOI：
10.1016/j.arth.2011.03.039
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发表时间：
2011-09-01
影响因子：
3.5
通讯作者：
Barrack, Robert L.
中科院分区：
文献类型：
--
作者：
Nunley, Ryan M.;Keeney, James A.;Barrack, Robert L.
尽管交叉台侧位片经常被用来评估髋臼假体前倾角，但这种方法的可靠性尚未确定。我们比较了98名接受初次或翻修全髋关节置换术的全髋关节置换患者(119个髋关节)的连续CL X线片和CT扫描结果。髋臼前倾角CL扫描平均26.1°(-2°~48.3°)，CT扫描平均28.8°(-7°~54°)。CT扫描所确定的前倾角与连续的CL图像之间有很强的相关性。然而，连续CL检查中有20%的患者变异超过10度。虽然CL成像可以提供可接受的一般部件位置的评估，但它在研究、结果报告或确定种植失败的原因方面的精确分析的使用有限。
Although cross-table lateral (CL) radiographs are frequently used to assess acetabular component anteversion, the reliability of this method has not been established. We compared serial CL radiographs with computed tomography (CT) scans for 98 total hip arthroplasty patients (119 hips) undergoing surveillance of primary or revision total hip arthroplasty. Acetabular anteversion averaged 26.1 degrees (range, -2 degrees to 48.3 degrees) on CL imaging and 28.8 degrees (range, -7 degrees to 54 degrees) on CT scan. There was a strong correlation between anteversion determined from CT scans and serial CL images. However, variation on serial CL studies exceeded 10 degrees for 20% of patients. Although CL imaging provides acceptable assessment of general component position, it has limited use for precise analysis in research, outcome reporting, or determination of cause of implant failure.