Joint Kinematics
A better understanding of the relationship between joint kinematics and joint pain, especially after joint surgery, may provide valuable insights for orthopedic surgeons or companies. This collaboration aims at an extensive analysis of joint kinematics with respect to the bony geometry of the patella, proximal tibia, distal femur (i.e. patellofemoral and tibiofemoral kinematics) and hip joint of subjects before and after total joint replacement, with a particular focus on patients with postoperative anterior knee pain.
During orthopedic surgery, e.g. in knee or hip replacement, software navigation and mechanical systems help to improve surgical outcome. By means of a few digitized landmarks, typical anatomical landmarks or parameters (e.g. hip joint center, rotational axes) are roughly approximated and evidence for intra-operative decision making and surgery planning is derived. In this project, we examine the applicability of fitting a statistical shape model of the distal femur to the sparse point cloud acquired during knee surgery. We further investigate, how 3D reconstruction techniques can be utilized to derive anatomical landmarks from pre-operative 2D X-ray images that are commonly used to plan the size and orientation of the hip-joint replacement. Our hypothesis is that such techniques infer the dense shape of the bone in order to compute anatomical landmarks and parameters more precisely while offering new applications in surgery planning.
Publications
2018 |
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Mohsen Akbari Shandiz, Paul Boulos, Stefan Sævarsson, Heiko Ramm, Chun Kit Fu, Stephen Miller, Stefan Zachow, Carolyn Anglin | Changes in Knee Shape and Geometry Resulting from Total Knee Arthroplasty | Journal of Engineering in Medicine, 232(1), pp. 67-79, 2018 |
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2015 |
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David Wilson, Pia Bücher, Carl Martin Grewe, Valentin Mocanu, Carolyn Anglin, Stefan Zachow, Michael Dunbar | Validation of Three Dimensional Models of the Distal Femur Created from Surgical Navigation Data | Orthopedic Research Society Annual Meeting, Las Vegas, Nevada, 2015 |
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David Wilson, Pia Bücher, Carl Martin Grewe, Carolyn Anglin, Stefan Zachow, Dunbar Michael | Validation of Three Dimensional Models of the Distal Femur Created from Surgical Navigation Point Cloud Data | 15th Annual Meeting of the International Society for Computer Assisted Orthopaedic Surgery (CAOS), 2015 |
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2014 |
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Moritz Ehlke, Thomas Frenzel, Heiko Ramm, Hans Lamecker, Mohsen Akbari Shandiz, Carolyn Anglin, Stefan Zachow | Robust Measurement of Natural Acetabular Orientation from AP Radiographs using Articulated 3D Shape and Intensity Models | ZIB-Report 14-12 (Presented at the 14th Annual Meeting of CAOS-International (CAOS)) |
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2013 |
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Stefan Saevarsson, Gulshan Sharma, Heiko Ramm, Robert Lieck, Carol Hutchison, Jason Werle, Sigrun Montgomery, Carolina Romeo, Stefan Zachow, Carolyn Anglin | Kinematic Differences Between Gender Specific And Traditional Knee Implants | The Journal of Arthroplasty, 28(9), pp. 1543-1550, 2013 |
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2012 |
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Karen Ho, Stefan Saevarsson, Heiko Ramm, Robert Lieck, Stefan Zachow, Gulshan Sharma, Erica Rex, Shahram Amiri, Barnabas Wu, Andre Leumann, Carolyn Anglin | Computed tomography analysis of knee pose and geometry before and after total knee arthroplasty | Journal of biomechanics, 45(13), pp. 2215-21, 2012 |
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Saevarsson Stefan, Sharma Gulshan, Montgomery Sigrun, Ho Karen, Heiko Ramm, Robert Lieck, Stefan Zachow, Carol Hutchison, Werle Jason, Anglin Carolyn | Kinematic Comparison Between Gender Specific and Traditional Femoral Implants | 67th Canadian Orthopaedic Association (COA) Annual Meeting, 2012 |
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Gulshan Sharma, Karen Ho, Stefan Saevarsson, Heiko Ramm, Robert Lieck, Stefan Zachow, Carolyn Anglin | Knee Pose and Geometry Pre- and Post-Total Knee Arthroplasty Using Computed Tomography | 58th Annual Meeting of the Orthopaedic Research Society (ORS), San Francisco, CA, 2012 |
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Gulshan Sharma, Stefan Saevarsson, Shahram Amiri, Sigrun Montgomery, Heiko Ramm, Derek Lichti, Stefan Zachow, Carolyn Anglin | Sequential-Biplane Radiography for Measuring Pre and Post Total Knee Arthroplasty Kinematics | 58th Annual Meeting of the Orthopaedic Research Society (ORS), San Francisco, CA, 2012 |
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2011 |
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Saevarsson SK, Sharma GB, Montgomery S, Ho KCT, Heiko Ramm, Robert Lieck, Stefan Zachow, Anglin C | Kinematic Comparison Between Gender Specific and Traditional Femoral Implants | Proceedings of the 11th Alberta Biomedical Engineering (BME) Conference (Poster), p. 80, 2011 |
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