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Jeffrey C. Lotz
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Proceedings Papers

The Effect of Strain Rate on the Axial Stress-Strain Response of the Human Annulus Fibrosus in Tension and Compression: Experiment and Poroelastic Finite Element Predictions

Neil A. Duncan, Frank A. Ashford, Jeffrey C. Lotz
Proc. ASME. IMECE96, Advances in Bioengineering, 401-402, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-1284
https://doi.org/10.1115/IMECE1996-1284
View Paper titled, The Effect of Strain Rate on the Axial Stress-Strain Response of the Human Annulus Fibrosus in Tension and Compression: Experiment and Poroelastic Finite Element Predictions
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Topics: Annulus, Compression, Finite element analysis, Stress, Tension, Finite element methods, Finite element model, Physiology
Proceedings Papers

The Compressive Creep Behavior of the Porcine Intervertebral Disc Is Affected by Frozen Storage

Elisa C. Bass, Neil A. Duncan, Jayaram S. Hariharan, Jeffrey C. Lotz
Proc. ASME. IMECE96, Advances in Bioengineering, 165-166, November 17–22, 1996
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1996-1166
https://doi.org/10.1115/IMECE1996-1166
View Paper titled, The Compressive Creep Behavior of the Porcine Intervertebral Disc Is Affected by Frozen Storage
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Topics: Creep, Intervertebral discs, Storage, Disks, Biological tissues, Compression, Cycles, Damage, Displacement, Fluids
Proceedings Papers

Compression-Induced Intervertebral Disc Degeneration in a Mouse Model

Olivier K. Colliou, Ellen Liebenberg, Neil A. Duncan, Jeffrey C. Lotz
Proc. ASME. IMECE97, Advances in Bioengineering, 163-164, November 16–21, 1997
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1997-0279
https://doi.org/10.1115/IMECE1997-0279
View Paper titled, Compression-Induced Intervertebral Disc Degeneration in a Mouse Model
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Topics: Compression, Intervertebral discs, Disks, Biological tissues, Cascades (Fluid dynamics), Maintenance, Stress
Proceedings Papers

Application of a Fiber-Reinforced Continuum Theory to Multiple Deformations of the Annulus Fibrosus

Stephen M. Klisch, Jeffrey C. Lotz
Proc. ASME. IMECE98, Advances in Bioengineering, 237-238, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0118
https://doi.org/10.1115/IMECE1998-0118
View Paper titled, Application of a Fiber-Reinforced Continuum Theory to Multiple Deformations of the Annulus Fibrosus
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Topics: Annulus, Deformation, Fibers, Boundary-value problems, Traction
Proceedings Papers

Development and Validation of a Porohyperelastic Finite Element Model of a Mouse Tail Disc to Investigate Tissue Remodelling

Neil A. Duncan, Olivier K. Colliou, Jeffrey C. Lotz
Proc. ASME. IMECE98, Advances in Bioengineering, 191-192, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0095
https://doi.org/10.1115/IMECE1998-0095
View Paper titled, Development and Validation of a Porohyperelastic Finite Element Model of a Mouse Tail Disc to Investigate Tissue Remodelling
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Topics: Biological tissues, Disks, Finite element model, Stress, Annulus, Creep, Intervertebral discs
Proceedings Papers

Application of a Special Theory of Biphasic Mixtures to Annulus Fibrosus

Stephen M. Klisch, Jeffrey C. Lotz
Proc. ASME. IMECE98, Advances in Bioengineering, 255-256, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0127
https://doi.org/10.1115/IMECE1998-0127
View Paper titled, Application of a Special Theory of Biphasic Mixtures to Annulus Fibrosus
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Topics: Annulus, Compression, Deformation, Fluids, Permeability, Stress
Proceedings Papers

Bending Mechanical Performance of the Intervertebral Disc Is Affected by In Vivo Compressive Loading

Olivier K. Colliou, Jeffrey C. Lotz
Proc. ASME. IMECE98, Advances in Bioengineering, 189-190, November 15–20, 1998
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1998-0094
https://doi.org/10.1115/IMECE1998-0094
View Paper titled, Bending Mechanical Performance of the Intervertebral Disc Is Affected by In Vivo Compressive Loading
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Topics: Equipment performance, Intervertebral discs, Disks, Bending strength, Biology, Mechanical properties, Stiffness, Stress
Proceedings Papers

Material Constants for Human Annulus Fibrosus Depend on Water Content and Reference Configuration

Stephen M. Klisch, Jeffrey C. Lotz
Proc. ASME. IMECE99, Advances in Bioengineering, 223-224, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0458
https://doi.org/10.1115/IMECE1999-0458
View Paper titled, Material Constants for Human Annulus Fibrosus Depend on Water Content and Reference Configuration
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Topics: Annulus, Water, Compression, Fluids, Permeability, Relaxation (Physics), Stress
Proceedings Papers

A Strain Energy Function for the Annulus Fibrosus Specified Using Biaxial Experimental Data

Elisa C. Bass, Jeffrey C. Lotz
Proc. ASME. IMECE99, Advances in Bioengineering, 221-222, November 14–19, 1999
Publisher: American Society of Mechanical Engineers
Paper No: IMECE1999-0457
https://doi.org/10.1115/IMECE1999-0457
View Paper titled, A Strain Energy Function for the Annulus Fibrosus Specified Using Biaxial Experimental Data
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Topics: Annulus, Anisotropy, Biological tissues, Mechanical behavior, Tension
Proceedings Papers

Integration of Mechanical and Biological Criteria When Defining Injury Tolerance

Jeffrey C. Lotz, Elisa C. Bass, Diane R. Wagner
Proc. ASME. IMECE2000, Mechanics in Biology, 49-64, November 5–10, 2000
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2000-1920
https://doi.org/10.1115/IMECE2000-1920
View Paper titled, Integration of Mechanical and Biological Criteria When Defining Injury Tolerance
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Topics: Wounds, Biological tissues, Risk, Anisotropy, Design, Diseases, Disks, Economics , Intervertebral discs, Strength (Materials)
Proceedings Papers

New Metric for Quantifying Stiffness of Intact Human Vertebrae

Jenni M. Buckley, Rina Parmeshwar, Jeffrey C. Lotz
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 861-862, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-192751
https://doi.org/10.1115/SBC2008-192751
View Paper titled, New Metric for Quantifying Stiffness of Intact Human Vertebrae
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Topics: Stiffness, Bone, Stress, Deflection, Measurement systems, Computational methods, Deformation, Displacement, Fracture (Materials), Fracture (Process)
Proceedings Papers

Biomechanical Comparison of Open Transosseous Versus Arthroscopic Suture Anchor Repair of the Subscapularis Tendon

Daniel J. Wheeler, Tigran Garabekyan, Roberto Lugo, Jenni M. Buckley, Marielena Lotz, Jeffrey C. Lotz, C. Benjamin Ma
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 679-680, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-193161
https://doi.org/10.1115/SBC2008-193161
View Paper titled, Biomechanical Comparison of Open Transosseous Versus Arthroscopic Suture Anchor Repair of the Subscapularis Tendon
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Topics: Arthroscopy, Biomechanics, Maintenance, Tendons, Testing, Muscle, Pressure, Rotation, Freezing, Injury mechanisms
Proceedings Papers

A Novel Technique for Measuring Pedicle Screw Forces In Situ

Samuel Q. Tia, Jennifer M. Buckley, Thuc-Quyen Nguyen, Jeffrey C. Lotz, Shane Burch
Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 225-226, June 25–29, 2008
Publisher: American Society of Mechanical Engineers
Paper No: SBC2008-192219
https://doi.org/10.1115/SBC2008-192219
View Paper titled, A Novel Technique for Measuring Pedicle Screw Forces In Situ
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Topics: Spinal pedicle screws, Screws, Testing, Biomechanics, Bone, Failure, Geometry, Lumbar spine, Sensors, Strain gages
Journal Articles

On Representations for Joint Moments Using a Joint Coordinate System

Oliver M. O'Reilly, Mark P. Sena, Brian T. Feeley, Jeffrey C. Lotz
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. November 2013, 135(11): 114504.
Paper No: BIO-13-1046
https://doi.org/10.1115/1.4025327
Published Online: September 26, 2013
View Articletitled, On Representations for Joint Moments Using a Joint Coordinate System
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Topics: Knee, Biomechanics, Rotation
Proceedings Papers

Microdialysis Technique for Quantifying Drug Concentration in Human Intervertebral Discs

Hyun Kyu Han, Jenni M. Buckley, Kathy Kursa, Conor O’Neill, Jeffrey C. Lotz
Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 751-752, June 17–21, 2009
Publisher: American Society of Mechanical Engineers
Paper No: SBC2009-206176
https://doi.org/10.1115/SBC2009-206176
View Paper titled, Microdialysis Technique for Quantifying Drug Concentration in Human Intervertebral Discs
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Topics: Drugs, Intervertebral discs, Biological tissues, Disks, Blood, Brain, Catheters, Drug delivery systems, Fluids, Membranes
Proceedings Papers

Design and Development of a Novel Modular Spine Testing Apparatus

David A. Moody, Oliver M. O’Reilly, Jeffrey C. Lotz
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 1171-1172, June 22–25, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SBC2011-53200
https://doi.org/10.1115/SBC2011-53200
View Paper titled, Design and Development of a Novel Modular Spine Testing Apparatus
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Topics: Design, Testing, Physiology, Boundary-value problems, Stress, Dynamics (Mechanics), Manufacturing, Mechanical testing, Muscle
Proceedings Papers

Bone Biomechanical Behavior in Adult Mice is Regulated by Osteoblast Gi Signaling in a Sex- and Site-Specific Manner

Aaron J. Fields, Susan M. Millard, Jeannie F. Bailey, Dylan O’Carroll, Jeffrey C. Lotz, Robert A. Nissenson
Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 313-314, June 22–25, 2011
Publisher: American Society of Mechanical Engineers
Paper No: SBC2011-53773
https://doi.org/10.1115/SBC2011-53773
View Paper titled, Bone Biomechanical Behavior in Adult Mice is Regulated by Osteoblast Gi Signaling in a Sex- and Site-Specific Manner
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Topics: Biomechanics, Bone, Osteoblasts, Osteoporosis, Maintenance, Mechanical behavior, Patient treatment, Proteins, Stiffness
Journal Articles

On the Stiffness Matrix of the Intervertebral Joint: Application to Total Disk Replacement

Oliver M. O’Reilly, Melodie F. Metzger, Jenni M. Buckley, David A. Moody, Jeffrey C. Lotz
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research Papers
J Biomech Eng. August 2009, 131(8): 081007.
https://doi.org/10.1115/1.3148195
Published Online: July 2, 2009
View Articletitled, On the Stiffness Matrix of the Intervertebral Joint: Application to Total Disk Replacement
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Topics: Disks, Stiffness
Journal Articles

Dependence of Mechanical Behavior of the Murine Tail Disc on Regional Material Properties: A Parametric Finite Element Study

Adam H. Hsieh, Diane R. Wagner, Louis Y. Cheng, Jeffrey C. Lotz
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. December 2005, 127(7): 1158–1167.
https://doi.org/10.1115/1.2073467
Published Online: June 8, 2005
View Articletitled, Dependence of Mechanical Behavior of the Murine Tail Disc on Regional Material Properties: A Parametric Finite Element Study
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Topics: Annulus, Disks, Materials properties, Stress, Viscoelasticity, Finite element analysis, Permeability, Biological tissues, Creep, Compression
Journal Articles

A Special Theory of Biphasic Mixtures and Experimental Results for Human Annulus Fibrosus Tested in Confined Compression

Stephen M. Klisch, Ph.D. Candidate,, Jeffrey C. Lotz, Associate Professor and Director,
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Papers
J Biomech Eng. April 2000, 122(2): 180–188.
https://doi.org/10.1115/1.429640
Published Online: November 30, 1999
View Articletitled, A Special Theory of Biphasic Mixtures and Experimental Results for Human Annulus Fibrosus Tested in Confined Compression
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Topics: Annulus, Biological tissues, Compression, Equilibrium (Physics), Fluids, Permeability, Relaxation (Physics), Stress, Deformation, Water