Adrian Sauer
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View article: Assessing the implementation of the REference FRame Alignment MEthod to compare differences in tibio-femoral kinematics during gait using five different marker sets
Assessing the implementation of the REference FRame Alignment MEthod to compare differences in tibio-femoral kinematics during gait using five different marker sets Open
Introduction: Gait analysis plays a key role in improving our understanding of joint kinematics during locomotion, often by leveraging marker-based systems. Accessibility to marker-based systems is nevertheless limited, as they are usually…
View article: Comparison of IMU-Based Knee Kinematics with and without Harness Fixation against an Optical Marker-Based System
Comparison of IMU-Based Knee Kinematics with and without Harness Fixation against an Optical Marker-Based System Open
The use of inertial measurement units (IMUs) as an alternative to optical marker-based systems has the potential to make gait analysis part of the clinical standard of care. Previously, an IMU-based system leveraging Rauch–Tung–Striebel sm…
View article: A new method called MiKneeSoTA to minimize knee soft-tissue artifacts in kinematic analysis
A new method called MiKneeSoTA to minimize knee soft-tissue artifacts in kinematic analysis Open
The use of marker-based optical motion capture to estimate joint kinematics during gait is currently limited by errors associated with soft-tissue-induced motion artefacts (STIMA) and ambiguity in landmark palpation. This study therefore p…
View article: Validation of Inertial-Measurement-Unit-Based Ex Vivo Knee Kinematics during a Loaded Squat before and after Reference-Frame-Orientation Optimisation
Validation of Inertial-Measurement-Unit-Based Ex Vivo Knee Kinematics during a Loaded Squat before and after Reference-Frame-Orientation Optimisation Open
Recently, inertial measurement units have been gaining popularity as a potential alternative to optical motion capture systems in the analysis of joint kinematics. In a previous study, the accuracy of knee joint angles calculated from iner…
View article: A Reproducible and Robust Representation of Tibiofemoral Kinematics of the Healthy Knee Joint during Stair Descent using REFRAME – Part I: REFRAME Foundations and Validation
A Reproducible and Robust Representation of Tibiofemoral Kinematics of the Healthy Knee Joint during Stair Descent using REFRAME – Part I: REFRAME Foundations and Validation Open
In clinical movement biomechanics, kinematic measurements are collected to characterise the motion of articulating joints and investigate how different factors influence movement patterns. Representative time-series signals are calculated …
View article: Biomechanical Effects of Stemmed Total Knee Arthroplasty on the Human Femur: A CT‐Data Based Study
Biomechanical Effects of Stemmed Total Knee Arthroplasty on the Human Femur: A CT‐Data Based Study Open
End‐of‐stem pain of the femur is a common problem in revision total knee arthroplasty (TKA). It may be caused by a problematic interaction between stem and bone, but the exact biomechanical correlate is still unknown. The aim of this prosp…
View article: The Influence of Mathematical Definitions on Patellar Kinematics Representations
The Influence of Mathematical Definitions on Patellar Kinematics Representations Open
A correlation between patellar kinematics and anterior knee pain is widely accepted. However, there is no consensus on how they are connected or what profile of patellar kinematics would minimize anterior knee pain. Nevertheless, answering…
View article: Towards a New, Pre-Clinical, Subject-Independent Test Model for Kinematic Analysis after Total Knee Arthroplasty—Influence of the Proximo-Distal Patella Position and Patellar Tendon Stiffness
Towards a New, Pre-Clinical, Subject-Independent Test Model for Kinematic Analysis after Total Knee Arthroplasty—Influence of the Proximo-Distal Patella Position and Patellar Tendon Stiffness Open
Although simulation models are heavily used in biomechanical research and testing of TKA implants, pre-clinical tools for a holistic estimation of implant performance under dynamic loading conditions are rare. The objective of this study w…