A Visualization Tool to convey Quantitative in vivo, 3D Knee Joint Kinematics

2006 ◽  
Author(s):  
Andrea R. Seisler ◽  
Frances T. Sheehan
Keyword(s):  
Knee Joint ◽  
Joint Kinematics ◽  
Visualization Tool ◽  
Knee Joint Kinematics

Using MR Imaging and X-Ray Fluoroscopy to Quantify the Effects of Soft-Tissue Artifact on Measurement of Knee-Joint Kinematics

2009 ◽  
Author(s):  
Massoud Akbarshahi ◽  
Justin W. Fernandez ◽  
Anthony Schache ◽  
Richard Baker ◽  
Marcus G. Pandy
Keyword(s):  
Soft Tissue ◽  
Knee Joint ◽  
Soft Tissues ◽  
Surgical Techniques ◽  
Joint Kinematics ◽  
Segmental Motion ◽  
Coordinate Systems ◽  
Knee Joint Kinematics ◽  
Soft Tissue Artifact

The ability to accurately measure joint kinematics in vivo is of critical importance to researchers in the field of biomechanics [1]. Applications range from the quantitative evaluation of different surgical techniques, treatment methods and/or implant designs, to the development of computer-based models capable of simulating normal and pathological musculoskeletal conditions [1,2]. Currently, non-invasive marker-based three dimensional (3D) motion analysis is the most commonly used method for quantitative assessment of normal and pathological locomotion. The accuracy of this technique is influenced by movement of the soft tissues relative to the underlying bones, which causes inaccuracies in the determination of segmental anatomical coordinate systems and tracking of segmental motion. The purpose of this study was to quantify the errors in the measurement of knee-joint kinematics due solely to soft-tissue artifact (STA) in healthy subjects. To facilitate valid inter-subject comparisons of the kinematic data, relevant anatomical coordinate systems were defined using 3D bone models generated from magnetic resonance imaging (MRI).

scholarly journals Prediction of In Vivo Knee Joint Kinematics Using a Combined Dual Fluoroscopy Imaging and Statistical Shape Modeling Technique

2014 ◽  
Vol 136 (12) ◽  
Author(s):  
Jing-Sheng Li ◽  
Tsung-Yuan Tsai ◽  
Shaobai Wang ◽  
Pingyue Li ◽  
Young-Min Kwon ◽  
...  
Keyword(s):  
Knee Joint ◽  
Knee Kinematics ◽  
Joint Kinematics ◽  
Shape Modeling ◽  
Modeling Technique ◽  
Statistical Shape ◽  
Knee Joint Kinematics ◽  
Statistical Shape Modeling ◽  
Rms Errors

Using computed tomography (CT) or magnetic resonance (MR) images to construct 3D knee models has been widely used in biomedical engineering research. Statistical shape modeling (SSM) method is an alternative way to provide a fast, cost-efficient, and subject-specific knee modeling technique. This study was aimed to evaluate the feasibility of using a combined dual-fluoroscopic imaging system (DFIS) and SSM method to investigate in vivo knee kinematics. Three subjects were studied during a treadmill walking. The data were compared with the kinematics obtained using a CT-based modeling technique. Geometric root-mean-square (RMS) errors between the knee models constructed using the SSM and CT-based modeling techniques were 1.16 mm and 1.40 mm for the femur and tibia, respectively. For the kinematics of the knee during the treadmill gait, the SSM model can predict the knee kinematics with RMS errors within 3.3 deg for rotation and within 2.4 mm for translation throughout the stance phase of the gait cycle compared with those obtained using the CT-based knee models. The data indicated that the combined DFIS and SSM technique could be used for quick evaluation of knee joint kinematics.

scholarly journals Knee implant kinematics are task-dependent

2019 ◽  
Vol 16 (151) ◽  
pp. 20180678 ◽  
Author(s):  
Pascal Schütz ◽  
Barbara Postolka ◽  
Hans Gerber ◽  
Stephen J. Ferguson ◽  
William R. Taylor ◽  
...  
Keyword(s):  
Knee Joint ◽  
Joint Kinematics ◽  
Functional Activities ◽  
Stair Descent ◽  
Significant Difference ◽  
Knee Joint Kinematics ◽  
Posterior Translation ◽  
Pain Knowledge ◽  
Anterior Posterior

Although total knee arthroplasty (TKA) has become a standard surgical procedure for relieving pain, knowledge of the in vivo knee joint kinematics throughout common functional activities of daily living is still missing. The goal of this study was to analyse knee joint motion throughout complete cycles of daily activities in TKA subjects to establish whether a significant difference in joint kinematics occurs between different activities. Using dynamic videofluoroscopy, we assessed tibio-femoral kinematics in six subjects throughout complete cycles of walking, stair descent, sit-to-stand and stand-to-sit. The mean range of condylar anterior–posterior translation exhibited clear task dependency across all subjects. A significantly larger anterior–posterior translation was observed during stair descent compared to level walking and stand-to-sit. Local minima were observed at approximately 30° flexion for different tasks, which were more prominent during loaded task phases. This characteristic is likely to correspond to the specific design of the implant. From the data presented in this study, it is clear that the flexion angle alone cannot fully explain tibio-femoral implant kinematics. As a result, it seems that the assessment of complete cycles of the most frequent functional activities is imperative when evaluating the behaviour of a TKA design in vivo .

Highly conforming polyethylene inlays reduce the in vivo variability of knee joint kinematics after total knee arthroplasty

The Knee ◽  
2012 ◽  
Vol 19 (4) ◽  
pp. 260-265 ◽  
Author(s):  
Kiriakos Daniilidis ◽  
Adrian Skwara ◽  
Volker Vieth ◽  
Susanne Fuchs-Winkelmann ◽  
Walter Heindel ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Joint ◽  
Knee Arthroplasty ◽  
Joint Kinematics ◽  
Knee Joint Kinematics ◽  
Total Knee ◽  
Highly Conforming

scholarly journals In vivo six-degree-of-freedom knee-joint kinematics in overground and treadmill walking following total knee arthroplasty

2016 ◽  
Vol 35 (8) ◽  
pp. 1634-1643 ◽  
Author(s):  
Shanyuanye Guan ◽  
Hans A. Gray ◽  
Anthony G. Schache ◽  
Julian Feller ◽  
Richard de Steiger ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Joint ◽  
Knee Arthroplasty ◽  
Joint Kinematics ◽  
Treadmill Walking ◽  
Degree Of Freedom ◽  
Knee Joint Kinematics ◽  
Total Knee ◽  
Six Degree Of Freedom

Movement direction impacts knee joint kinematics during elliptical exercise at varying incline angles

The Knee ◽  
2021 ◽  
Vol 29 ◽  
pp. 201-207
Author(s):  
Erik T. Hummer ◽  
Eryn N. Murphy ◽  
David N. Suprak ◽  
Lorrie R. Brilla ◽  
Jun G. San Juan
Keyword(s):  
Knee Joint ◽  
Joint Kinematics ◽  
Movement Direction ◽  
Knee Joint Kinematics

In Vivo Tracking of the Human Patella Using Cine Phase Contrast Magnetic Resonance Imaging

1999 ◽  
Vol 121 (6) ◽  
pp. 650-656 ◽  
Author(s):  
F. T. Sheehan ◽  
F. E. Zajac ◽  
J. E. Drace
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Phase Contrast ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Contrast Magnetic Resonance ◽  
Knee Joint Kinematics ◽  
Cine Phase Contrast

Improper patellar tracking is often considered to be the cause of patellar-femoral pain. Unfortunately, our knowledge of patellar-femoral-tibial (knee) joint kinematics is severely limited due to a lack of three-dimensional, noninvasive, in vivo measurement techniques. This study presents the first large-scale, dynamic, three-dimensional, noninvasive, in vivo study of nonimpaired knee joint kinematics during volitional leg extensions. Cine-phase contrast magnetic resonance imaging was used to measure the velocity profiles of the patella, femur, and tibia in 18 unimpaired knees during leg extensions, resisted by a 34 N weight. Bone displacements were calculated through integration and then converted into three-dimensional orientation angles. We found that the patella displaced laterally, superiorly, and anteriorly as the knee extended. Further, patellar flexion lagged knee flexion, patellar tilt was variable, and patellar rotation was fairly constant throughout extension.

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