Isocentric 3-Dimensional C-Arm Imaging of Component Alignments in Total Knee Arthroplasty With Potential Intraoperative and Postoperative Applications

被引：4

作者：

Amiri, Shahram ^{[1
]}

Wilson, David R. ^{[1
]}

Anglin, Carolyn ^{[2
,3
,4
]}

Van Houwelingen, Andrew ^{[1
]}

Masri, Bassam A. ^{[1
]}

机构：

[1] Univ British Columbia, Dept Orthopaed, Vancouver, BC V5Z 1M9, Canada

[2] Univ Calgary, Calgary, AB, Canada

[3] Univ Calgary, Dept Civil Engn, Calgary, AB T2N 1N4, Canada

[4] Univ Calgary, McCaig Inst Bone & Joint Hlth, Calgary, AB, Canada

来源：

JOURNAL OF ARTHROPLASTY | 2013年 / 28卷 / 02期

关键词：

knee arthroplasty; ISO-C; isocentric; intraoperative; rotational alignment; knee replacement; ROTATIONAL ALIGNMENT; FEMORAL COMPONENT; TRANSEPICONDYLAR AXIS; DISTAL FEMUR; COMPUTED-TOMOGRAPHY; PATELLAR TRACKING; VARIABILITY; BIOMECHANICS; MALALIGNMENT; AGREEMENT;

D O I：

10.1016/j.arth.2012.05.007

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：

An intraoperative imaging tool for total knee arthroplasty could help avoid poor clinical outcomes related to malalignment. We investigated the feasibility of using isocentric (ISO-C) fluoroscopic imaging for this purpose. Three-dimensional ISO-C and computed tomographic (CT) images were acquired from 6 cadaveric specimens implanted with standard knee arthroplasty components and analyzed to determine rotational alignments. In comparison with standard CT measures, the ISO-C-based measures had overall accuracies (determined as root mean square error) of 0.8 degrees and 1.3 degrees and corresponding SDs of 1.3 degrees and 1.4 degrees for the femoral and tibial components, respectively. With ISO-C imaging, it is possible to measure rotational alignment in knee arthroplasty with accuracy and repeatability comparable with CT. Isocentric imaging has strong potential as an intraoperative tool to accurately align arthroplasty components.

引用

页码：248 / 254

页数：7

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