Kaushik Adhithya, Kumar C Vinay, Hegde Anoop, Mathias Lawrence, Shetty Vikram
Orthopaedics, Meenakshi Medical College Hospital and Research Institute, Kanchipuram, IND.
Orthopaedics, K S Hegde Medical Academy, Mangalore, IND.
Cureus. 2024 Sep 3;16(9):e68575. doi: 10.7759/cureus.68575. eCollection 2024 Sep.
This study aimed to evaluate acetabular anteversion following total hip arthroplasty (THA) using cross-table lateral radiographs and CT scans and to determine the reliability of cross-table lateral radiographs compared to computed tomography (CT) scans for measuring acetabular anteversion.
We conducted a cross-sectional study of patients undergoing THA at Justice K.S. Hegde Charitable Hospital, Deralakatte, Mangalore, from January 2020 to June 2021. Radiographs are typically taken in both anteroposterior (AP) and lateral views after THA. However, for this study, a cross-table lateral view was used instead of the usual lateral radiograph to measure the angle of anteversion. The anteversion was calculated using the method described by Woo and Morrey. Additionally, CT scans were performed on all patients as part of the study protocol. The anteversion measured in these scans was compared to that in the cross-table radiographs to assess the latter's reliability for routine use. The risk of radiation exposure from CT scans was minimized by adhering to the ALARA (As Low as Reasonably Achievable) principle, with only axial sections of the acetabular cup being scanned.
The results show that the radiographic acetabular anteversion and CT scan measurements have a mean difference of 0.3036. There is a positive correlation between these measurements. The p-value is not statistically significant (p=0.698). Therefore, the measurements are correlated with each other with a linear relationship (r=0.919). For anteversion measurements using the X-ray method, the mean was 27.16 degrees with a standard deviation of ±9.49. The median was 27.26 degrees, ranging from 10.27 to 42.58 degrees. In comparison, the CT method yielded a mean anteversion of 27.40 degrees with a standard deviation of ±8.50 degrees. The median was 27.64 degrees, ranging from 12.35 to 43.11 degrees.
Cross-table lateral radiographs are a reliable and comparable method to CT scans for measuring acetabular anteversion following total hip arthroplasty.
本研究旨在使用交叉台侧位X线片和CT扫描评估全髋关节置换术（THA）后的髋臼前倾角，并确定与计算机断层扫描（CT）扫描相比，交叉台侧位X线片测量髋臼前倾角的可靠性。
我们对2020年1月至2021年6月在芒格洛尔市德雷拉卡特的K.S. 赫格德慈善医院接受THA的患者进行了一项横断面研究。THA术后通常会拍摄前后位（AP）和侧位X线片。然而，在本研究中，使用交叉台侧位片代替常规侧位X线片来测量前倾角。前倾角采用Woo和Morrey描述的方法计算。此外，作为研究方案的一部分，对所有患者进行了CT扫描。将这些扫描中测量的前倾角与交叉台X线片中的前倾角进行比较，以评估后者在常规使用中的可靠性。通过遵循“尽可能低”（ALARA）原则，仅扫描髋臼杯的轴向层面来尽量减少CT扫描的辐射暴露风险。
结果显示，X线片测量的髋臼前倾角与CT扫描测量值的平均差值为0.3036。这些测量值之间存在正相关。p值无统计学意义（p = 0.698）。因此，这些测量值之间存在线性关系的相关性（r = 0.919）。使用X线方法测量前倾角时，平均值为27.16度，标准差为±9.49。中位数为27.26度，范围为10.27至42.58度。相比之下，CT方法得出的前倾角平均值为27.40度，标准差为±8.50度。中位数为27.64度，范围为12.35至43.11度。
对于全髋关节置换术后测量髋臼前倾角，交叉台侧位X线片是一种与CT扫描可靠且可比的方法。
