TY - JOUR A1 - Ehrig, Rainald A1 - Taylor, William R. A1 - Duda, G. A1 - Heller, Markus O. T1 - A Survey for Formal Methods for Determining the Centre of Ball Joints JF - Journal of Biomechanics Y1 - 2006 IS - 39 SP - 2798 EP - 2809 ER - TY - CHAP A1 - Ehrig, Rainald A1 - Taylor, William R. A1 - Duda, G. A1 - Heller, Markus O. T1 - A New Approach for the Determination of Joint Axes T2 - Proceedings of the 52th Annual Meeting of the Orthopedic Society Y1 - 2006 CY - Chicago ER - TY - JOUR A1 - Heller, Markus O. A1 - Duda, Georg A1 - Ehrig, Rainald A1 - Schell, H. A1 - Seebeck, P. A1 - Taylor, William R. T1 - Muskuloskeletale Belastungen im Schafshinterlauf JF - Materialwissenschaft und Werkstofftechnik Y1 - 2005 IS - 36 SP - 775 EP - 780 ER - TY - CHAP A1 - Heller, Markus O. A1 - Duda, G. A1 - König, Christian A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Hinterwimmer, S. A1 - Graichen, H. T1 - Validation of a New Model of Human Knee Kinematics against in Vivo Data under Physiologic Neuromuscular Activation Patterns T2 - Proceedings of the 51th Annual Meeting of the Orthopedic Society Y1 - 2005 CY - Washington ER - TY - JOUR A1 - Heller, Markus O. A1 - König, Christian A1 - Graichen, F. A1 - Hinterwimmer, S. A1 - Ehrig, Rainald A1 - Duda, G. A1 - Taylor, William R. T1 - A new model to predict in vivo human knee kinematics under physiological-like muscle activation JF - Journal of Biomechanics Y1 - 2007 SP - 45 EP - 53 ER - TY - CHAP A1 - Kratzenstein, Stefan A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Heller, Markus O. T1 - Reduction of the influence of skin marker artefacts using the optimal common shape technique T2 - Annual meeting of the ESMAC 2009 Y1 - 2009 CY - London ER - TY - CHAP A1 - Kassi, J.-P. A1 - Taylor, William R. A1 - Schwarzkopf, J. A1 - Schell, H. A1 - Duda, G. A1 - Ehrig, Rainald T1 - Wie sind Osteosynthesesysteme und Defektzonen in vivo belastet? T2 - 68. Jahrestagung der Deutschen Gesellschaft für Unfallchirurgie in Verbindung mit dem Deutschen Orthopädenkongress Y1 - 2004 CY - Berlin ER - TY - JOUR A1 - Kratzenstein, Stefan A1 - Kornaropoulos, Evgenios I. A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Pöpplau, Berry M. A1 - Taylor, William R. T1 - Effective marker placement for functional identification of the centre of rotation at the hip JF - Gait & Posture Y1 - 2012 U6 - https://doi.org/http://dx.doi.org/10.1016/j.gaitpost.2012.04.011 VL - 36 IS - 3 SP - 482 EP - 486 ER - TY - JOUR A1 - Moewis, Philippe A1 - Boeth, Heide A1 - Heller, Markus O. A1 - Yntema, Caroline A1 - Jung, Tobias A1 - Doyscher, Ralf A1 - Ehrig, Rainald A1 - Zhong, Yanlin A1 - Taylor, William R. T1 - Towards understanding knee joint laxity: Errors in non-invasive assessment of joint rotation can be corrected JF - Medical Engineering and Physics Y1 - 2014 U6 - https://doi.org/doi.org/10.1016/j.medengphy.2014.03.017 VL - 36 IS - 7 SP - 889 EP - 895 ER - TY - CHAP A1 - Taylor, William R. A1 - Kratzenstein, Stefan A1 - Kornaropoulos, Evgenios I. A1 - Ehrig, Rainald A1 - Moewis, Philippe A1 - Heller, Markus O. T1 - Non-invasive Assessment of Skeletal Kinematics T2 - Measurement and Sensing in Medicine and Health Y1 - 2009 CY - London ER - TY - CHAP A1 - Taylor, William R. A1 - Kornaropoulos, Evgenios I. A1 - Kratzenstein, Stefan A1 - Ehrig, Rainald A1 - Plank, F. A1 - Heller, Markus O. T1 - Targeted Marker Placement for the Functional Identification of the Hip Joint Centre T2 - Transactions Vol. 36, 2011 Annual Meeting of the Orthopedic Society Y1 - 2011 CY - Long Beach ER - TY - CHAP A1 - Taylor, William R. A1 - König, Christian A1 - Speirs, A. A1 - Ehrig, Rainald A1 - Duda, G. A1 - Heller, Markus O. T1 - The medio-lateral force distribution in the sheep knee during walking T2 - 5. World Congress of Biomechanics, Munich, Journal of Biomechanics Y1 - 2006 IS - 39, Suppl. 1 SP - S491 ER - TY - CHAP A1 - Taylor, William R. A1 - König, Christian A1 - Speirs, A. A1 - Ehrig, Rainald A1 - Duda, G. A1 - Heller, Markus O. T1 - Die medio-laterale Kraftverteilung im Schafsknie T2 - Deutscher Kongress für Orthpädie und Unfallchirurgie, Berlin Y1 - 2006 ER - TY - CHAP A1 - Taylor, William R. A1 - Kassi, J.-P. A1 - Schwarzkopf, J. A1 - Ehrig, Rainald A1 - Schell, H. A1 - Duda, G. T1 - The Profile of Mechanical Loading is Independent of Fracture Fixation Principle T2 - Proceedings of the 51th Annual Meeting of the Orthopedic Society Y1 - 2005 CY - Washington ER - TY - CHAP A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Duda, G. A1 - Heller, Markus O. T1 - The determination of joint axes T2 - 5. World Congress of Biomechanics, Munich, Journal of Biomechanics Y1 - 2006 IS - 39, Suppl. 1 SP - S571 EP - S572 ER - TY - CHAP A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Duda, G. A1 - Heller, Markus O. T1 - The Symmetrical Axis of Rotation Approach (SARA) for Determination of Joint Axes in Clinical Gait Analysis T2 - 1st Joint ESMAC-GCMAS Meeting, Amsterdam Y1 - 2006 ER - TY - CHAP A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Schell, H. A1 - Duda, G. T1 - Can Skin Markers Determine the Kinematics of Underlying Bones? T2 - Proceedings of the 50th Annual Meeting of the Orthopedic Society Y1 - 2004 CY - San Francisco ER - TY - JOUR A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Schell, H. A1 - Klein, P. A1 - Duda, G. T1 - On the Influence of Soft Tissue Coverage in the Determination of Bone Kinematics using Bone Markers JF - Journal of Orthopedic Research Y1 - 2005 IS - 23 SP - 726 EP - 734 ER - TY - CHAP A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Schell, H. A1 - Seebeck, P. A1 - Duda, G. T1 - Animal Models for Knee Injury Frequently Underestimate the Mechanical Conditions of the Clinical Situation T2 - Proceedings of the 51th Annual Meeting of the Orthopedic Society Y1 - 2005 CY - Washington ER - TY - JOUR A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Schell, H. A1 - Seebeck, P. A1 - Duda, G. T1 - Tibio-femoral Joint Contact Forces in Sheep JF - Journal of Biomechanics Y1 - 2006 IS - 39 SP - 791 EP - 798 ER - TY - CHAP A1 - Hajizadeh, Maryam A1 - Schütz, Pascal A1 - List, Renate A1 - Boeth, Heide A1 - Ehrig, Rainald A1 - Postolka, Barbara A1 - Freeman, Michael A. R. A1 - Taylor, William R. T1 - Interpretation of tibio-femoral kinematics critically depends upon the kinematic analysis approach T2 - ISB 2015, 25th congress of the International Society of Biomechanics, Glasgow Y1 - 2015 ER - TY - JOUR A1 - Heller, Markus O. A1 - Matziolis, Georg A1 - König, Christian A1 - Taylor, William R. A1 - Hinterwimmer, S. A1 - Graichen, H. A1 - Hege, Hans-Christian A1 - Bergmann, G. A1 - Perka, Carsten A1 - Duda, G. N. T1 - Muskuloskelettale Biomechanik des Kniegelenks - Grundlagen für die präoperative Planung von Umstellung und Gelenkersatz JF - Der Orthopäde Y1 - 2007 U6 - https://doi.org/10.1007/s00132-007-1115-2 VL - 36 IS - 7 SP - 628 EP - 634 ER - TY - CHAP A1 - Kratzenstein, Stefan A1 - Heller, Markus O. A1 - Ehrig, Rainald A1 - Duda, Georg A1 - Taylor, William R. T1 - The Hip Joint Centre can be determined to within 3 mm T2 - 17th Congress of the European Society of Biomechanics Y1 - 2010 CY - Edinburgh ER - TY - JOUR A1 - Taylor, William R. A1 - Pöpplau, Berry M. A1 - König, Christian A1 - Ehrig, Rainald A1 - Zachow, Stefan A1 - Duda, Georg A1 - Heller, Markus O. T1 - The medial-lateral force distribution in the ovine stifle joint during walking JF - Journal of Orthopaedic Research Y1 - 2011 U6 - https://doi.org/10.1002/jor.21254 VL - 29 IS - 4 SP - 567 EP - 571 ER - TY - CHAP A1 - Taylor, William R. A1 - Fröhlich, Annika A1 - Buttgereit, Frank A1 - Ehrig, Rainald A1 - Witaschek, Tom A1 - Duda, Georg ED - Kersting, Uwe ED - Morlock, Michael ED - Jirova-Enzmann, Daniela ED - Dremstrup, Kim T1 - Metacarpophalangeal joint stiffness is reduced in patients affected by rheumatoid arthritis after glucocorticoid medication T2 - Proceedings of the ESM-2012, Aalborg Y1 - 2012 SP - 39 PB - Department of Health Science and Technology, Aalborg University ER - TY - JOUR A1 - Heller, Markus O. A1 - Kratzenstein, Stefan A1 - Ehrig, Rainald A1 - Wassilew, Georgi A1 - Duda, Georg A1 - Taylor, William R. T1 - The weighted optimal common shape technique improves identification of the hip joint centre of rotation in vivo JF - Journal of Orthopedic Research Y1 - 2011 VL - 29 SP - 1470 EP - 5 ER - TY - JOUR A1 - Ehrig, Rainald A1 - Taylor, William R. A1 - Duda, Georg A1 - Heller, Markus O. T1 - A Survey for Formal Methods for Determining Functional Joint Axes JF - Journal of Biomechanics Y1 - 2007 SP - 2150 EP - 2157 ER - TY - CHAP A1 - Kratzenstein, Stefan A1 - Heller, Markus O. A1 - Ehrig, Rainald A1 - Wassilew, Georgi A1 - Duda, Georg A1 - Taylor, William R. T1 - A new approach for optimally reducing skin marker artifact allows determination of the hip joint center within 3mm T2 - Transactions Vol. 35, 2010 Annual Meeting of the Orthopedic Society Y1 - 2010 CY - New Orleans ER - TY - CHAP A1 - Kornaropoulos, Evgenios I. A1 - Taylor, William R. A1 - Duda, Georg A1 - Ehrig, Rainald A1 - Matziolis, Georg A1 - Müller, Michael A1 - Wassilew, Georgi A1 - Asbach, Patrick A1 - Perka, Carsten A1 - Heller, Markus O. T1 - An imageless method to quantify the mechanical femoral-tibial angle based on the functional determination of joint centers and axes T2 - Annual meeting of the ESMAC 2009 Y1 - 2009 CY - London ER - TY - JOUR A1 - Kornaropoulos, Evgenios I. A1 - Taylor, William R. A1 - Duda, Georg A1 - Ehrig, Rainald A1 - Matziolis, Georg A1 - Müller, Michael A1 - Wassilew, Georgi A1 - Asbach, Patrick A1 - Perka, Carsten A1 - Heller, Markus O. T1 - Frontal plane alignment: An imageless method to predict the mechanical femoral–tibial angle (mFTA) based on functional determination of joint centres and axes JF - Gait & Posture Y1 - 2010 U6 - https://doi.org/10.1016/j.gaitpost.2009.10.006 VL - 31 IS - 2 SP - 204 EP - 208 ER - TY - JOUR A1 - Boeth, Heide A1 - Biesen, Robert A1 - Hollnagel, Jeremias A1 - Herrmann, Sandra A1 - Ehrig, Rainald A1 - Pelli, Lorenzo A1 - Taylor, William R. A1 - Duda, Georg A1 - Buttgereit, Frank T1 - Quantification of morning stiffness to assess disease activity and treatment effects in rheumatoid arthritis JF - Rheumatology N2 - Objectives The clinical parameter “morning stiffness” is widely used to assess the status of rheumatoid arthritis (RA), but its accurate quantitative assessment in a clinical setting has not yet been successful. This lack of individual quantification limits both personalized medication and efficacy evaluation in the treatment of RA. Methods We have developed a novel technology to assess passive resistance of the metacarpophalangeal (MCP) III joint (stiffness) and its Passive Range of Motion (PRoM). Within this pilot study, nineteen female postmenopausal RA patients and nine healthy controls were examined in the evening as well as in the morning of the following day. To verify the specificity of the biomechanical quantification, eleven patients with RA were assessed both prior to and ∼3 h after glucocorticoid therapy. Results While the healthy controls showed only minor changes between afternoon and morning, in RA patients mean±SD PRoM decreased significantly by 18 ± 22% and stiffness increased significantly by 20 ± 18% in the morning compared with the previous afternoon. We found a significant positive correlation between RA activity and biomechanical measures. Glucocorticoids significantly increased mean PRoM by 16 ± 11% and reduced mean stiffness by 23 ± 22%. Conclusion This technology allowed mechanical stiffness to be quantified in MCP joints, and has demonstrated high sensitivity in respect to disease status as well as medication effect in RA patients. Such non-invasive, low risk, and rapid assessment of biomechanical joint stiffness opens a novel avenue for judging therapy efficacy in patients with RA, and potentially also in other non-RA inflammatory joint diseases. Y1 - 2021 U6 - https://doi.org/10.1093/rheumatology/keab323 VL - 60 IS - 11 SP - 5282 EP - 5291 ER - TY - CHAP A1 - Boeth, Heide A1 - Duda, Georg A1 - Hinzmann, Daniel A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Witaschek, Tom A1 - Buttgereit, Frank T1 - Objektive Quantifizierung der Morgensteifigkeit als Parameter für rheumatoide Arthritis im Metacarpophalangealgelenk T2 - 9. Jahrestagung der Deutschen Gesellschaft für Biomechanik (DGfB), Bonn Y1 - 2015 ER - TY - JOUR A1 - Boeth, Heide A1 - Duda, Georg A1 - Hinzmann, Daniel A1 - Hermann, Sandra A1 - Taylor, William R. A1 - Ehrig, Rainald A1 - Witaschek, Tom A1 - Buttgereit, Frank T1 - A Novel Approach to Quantify Morning Stiffness in Patients with Rheumatoid Arthritis JF - Annual European Congress of Rheumatology, EULAR 2015, Rome Y1 - 2015 ER - TY - CHAP A1 - Kornaropoulos, Evgenios I. A1 - Taylor, William R. A1 - Duda, Georg A1 - Ehrig, Rainald A1 - Heller, Markus O. T1 - Frontal plane lower limb alignment using functionally determined joint centers and axes T2 - International Conference on Computational Bioengineering Y1 - 2009 ER - TY - JOUR A1 - Boeth, Heide A1 - Duda, Georg A1 - Heller, Markus O. A1 - Ehrig, Rainald A1 - Doyscher, Ralf A1 - Jung, Tobias A1 - Moewis, Philippe A1 - Scheffler, Sven A1 - Taylor, William R. T1 - Anterior cruciate ligament-deficient patients with passive knee joint laxity have a decreased range of anterior-posterior motion during active movements JF - The American Journal of Sports Medicine Y1 - 2013 U6 - https://doi.org/10.1177/0363546513480465 VL - 41 IS - 5 SP - 1051 EP - 7 ER - TY - JOUR A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Kratzenstein, Stefan A1 - Duda, Georg A1 - Trepczynski, Adam A1 - Taylor, William R. T1 - The SCoRE residual: A quality index to assess the accuracy of joint estimations JF - Journal of Biomechanics Y1 - 2011 U6 - https://doi.org/10.1016/j.jbiomech.2010.12.009 VL - 44 IS - 7 SP - 1400 EP - 1404 ER - TY - CHAP A1 - Kratzenstein, Stefan A1 - Heller, Markus O. A1 - Ehrig, Rainald A1 - Duda, Georg A1 - Schröder, Jörg H. A1 - Taylor, William R. T1 - Die Bestimmung der Genauigkeit nicht-invasiver Techniken zur Ermittlung der Hüftgelenksposition in-vivo T2 - 6th annual meeting of the German Society for Biomechanics (DGfB) Y1 - 2009 CY - Münster ER - TY - CHAP A1 - Kornaropoulos, Evgenios I. A1 - Taylor, William R. A1 - Duda, Georg A1 - Ehrig, Rainald A1 - Heller, Markus O. T1 - An imageless method to quantify the Mechanical Femoral-Tibial Angle (MFTA) using functionally defined joint centers and axes. T2 - 6th Annual meeting of the German Society for Biomechanics (DGfB) Y1 - 2009 ER - TY - CHAP A1 - Kratzenstein, Stefan A1 - Heller, Markus O. A1 - Ehrig, Rainald A1 - Duda, Georg A1 - Schröder, Jörg H. A1 - Taylor, William R. T1 - Der Vergleich von nicht-invasiven Techniken zur Bestimmung der Hüftgelenksposition T2 - Annual meeting of the German Society of Orthopaedics and Trauma Surgery Y1 - 2009 CY - Berlin ER - TY - CHAP A1 - Kratzenstein, Stefan A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Duda, Georg A1 - Taylor, William R. T1 - A Quantification of Accuracy in Estimating Joint Centers T2 - 17th Congress of the European Society of Biomechanics Y1 - 2010 CY - Edinburgh ER - TY - CHAP A1 - Taylor, William R. A1 - Kornaropoulos, Evgenios I. A1 - Ehrig, Rainald A1 - Heller, Markus O. A1 - Duda, Georg T1 - Reproducibility of a functional approach to gait analysis T2 - Annual meeting of the ESMAC 2009 Y1 - 2009 CY - London ER - TY - CHAP A1 - Kratzenstein, Stefan A1 - Heller, Markus O. A1 - Ehrig, Rainald A1 - Duda, Georg A1 - Taylor, William R. T1 - The Residual: A Reliable Measure of Accuracy in the Determination of Joint Centers T2 - Transactions Vol. 35, 2010 Annual Meeting of the Orthopedic Society Y1 - 2010 CY - New Orleans ER -