期刊
ARTIFICIAL ORGANS
卷 46, 期 12, 页码 2412-2422出版社
WILEY
DOI: 10.1111/aor.14281
关键词
accuracy; anatomical pelvic plane; navigation; pelvic orientation
资金
- Japan Society for the Promotion of Science [19K09564, 20K09421, 22K09367]
- Grants-in-Aid for Scientific Research [20K09421, 19K09564] Funding Source: KAKEN
This study aimed to demonstrate the accuracy of a procedure that considers pelvic orientation using a portable navigation system for total hip arthroplasty. The results showed that the procedure significantly improved the accuracy of cup placement, with radiographic inclination and anteversion accuracies within 5 degrees of the target angle in a high percentage of cases.
Background We previously proposed an accurate cup placement procedure using a portable navigation system (PNS) for total hip arthroplasty (THA) in the lateral decubitus position; however, the accuracy of our proposed procedure has not been shown, the aim of this study was to demonstrate the accuracy. Methods We prospectively analyzed 79 hips treated with primary THA; 40 hips treated until June 2020 were included in the conventional procedure (CP) group, and 39 hips treated from July 2020 were included in the modified procedure (MP) group. In the MP, pelvic orientation is considered to be the set coordinate axes in addition to the CP using the PNS. The accuracy was based on the difference between the navigation record (NR) and postoperative computed tomography measurement. Results The radiographic inclination (RI) and anteversion (RA) accuracies were 1.55 degrees and 2.14 degrees, respectively, in the MP group and 3.03 degrees and 6.20 degrees, respectively, in the CP group (p < 0.001). The error was within 5 degrees of the NR for both the RI and RA in 34 in the MP group (87.2%) and 14 in the CP group (35.0%) (p < 0.001). The error was within 5 degrees of the target angle (RI 40 degrees, RA 15 degrees) for both the RI and RA in 29 hips in the MP group (74.7%) and 12 in the CP group (30.0%) (p < 0.001). Conclusions Our procedure with the consideration of pelvic orientation achieved dramatically improved the accuracy of PNS and was suitable to facilitate accurate cup placement.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据