Evaluation of implant alignment in navigated unicompartmental knee arthroplasty : a comparison of 2D and 3D imaging

被引：0
|
作者：
Ishida, Kazunari [1 ]
Toda, Akihiko [1 ]
Shibanuma, Nao [1 ]
Matsumoto, Tomoyuki [1 ]
Kuroda, Ryosuke [1 ]
Kurosaka, Masahiro [1 ]
机构：
[1] Kobe Kaisei Hosp, Dept Orthopaed Surg, Nada Ku, 3-11-15 Shinohara Kita, Kobe, Hyogo 6570068, Japan
来源：
ACTA ORTHOPAEDICA BELGICA | 2015年 / 81卷 / 04期
关键词：
unicompartmental knee arthroplasty; implant alignment; three-dimensional evaluation; radiographic evaluation; ROTATIONAL ALIGNMENT; ANTEROPOSTERIOR AXIS; FEMORAL COMPONENT; LIMB ALIGNMENT; KINEMATICS;
D O I：
暂无
中图分类号：
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];
学科分类号：
摘要：
This study aimed to compare two-dimensional (2D) and three-dimensional (3D) methods for evaluating implant alignment in navigated UKA. Nineteen UKAs in 18 subjects (7 men) were performed using an image-free navigation system. Coronal and sagittal implant alignments were assessed using radiographs (2D evaluation) and 3D image-matching software. The accuracy of 2D evaluation was compared with that of 3D evaluation. A deviation >3 degrees from the 3D evaluation was defined as an outlier. In the 2D evaluation, outliers for the femoral component were observed in both the coronal plane (6/19 subjects) and the sagittal plane (3/19 subjects). In UKA, assessment of the implant position might be misjudged because of the design of the implant, especially for the femoral component; 3D methods are ideal for assessment of implant alignment.
引用
收藏
页码：654 / 661
页数：8
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