Spinal Implants: Are We Evaluating Them Properly? (Astm Special Technical Publication, 1431.) [illustrated edition] 9780803134638, 0803134630
Meet the challenges and demands facing professionals in the dynamic field of spinal implants. Twenty-one peer-reviewed p
314 25 202KB
English Pages 238 Year 2003
Table of contents :
Foreword......Page 3
Contents......Page 5
Overview......Page 7
History of lsola-VSP Fatigue Testing Results with Correlation to Clinical Implant Failures......Page 11
Gauge Length and Mobility of Test Blocks Strongly Affect the Strength and Stiffness of Posterior Occipito-Cervico-Thoracic Corpectomy Constructs......Page 25
Relative 3 Dimensional Motions between End Vertebrae in a Bi-level Construct, the Effect of Fixture Constraints on Test Results......Page 32
Spinal Implant Transverse Rod Connectors: A Delicate Balance Between Stability and Fatigue Performance......Page 42
Corrosion on Spinal Implant Constructs: Should Standards Be Revised?......Page 48
Effect of Transverse Connector Design on Development of Late Operative Site Pain: Preliminary Clinical Findings......Page 53
Interconnection Strength Testing and its Value in Evaluating Clinical Performance......Page 61
Protection of the Longitudinal Member Interconnection by ASTM F 1798-97 Interconnection Mechanism and Subassemblies Standard Guide......Page 69
Clinical Relevance of Pull-out Strength Testing of Pedicle Screws......Page 74
Extrusion of Interbody Fusion Devices-Clinical Examples......Page 85
"Is Push-out Testing of Cage Devices Worthwhile in Evaluating Clinical Performance?"......Page 90
A Comparison of Two Strength-Testing Methodologies for Interbody Structural Allografts for Spinal Fusion......Page 96
The Influence of In Vitro Testing Method on Measured Intervertebral Disc Characteristics......Page 104
Testing of Human Cadaveric Functional Spinal Units to the ASTM Draft Standard, "Standard Test Methods for Static and Dynamic Characterization of Spinal Artificial Discs."......Page 117
Durability Test Method for a Prosthetic Nucleus (PN)......Page 130
Mechanical Analogue Model of the Human Lumbar Spine: Development and Initial Evaluation......Page 145
An Improved Biomechanical Testing Protocol For Evaluating Multilevel Cervical Instrumentation In A Human Cadaveric Corpectomy Model......Page 157
Influence of Preload in Flexibility Testing of Native and Instrumented Lumbar Spine Specimens......Page 175
Transverse Connectors: Clinical Objectives, Biomechanical Parameters Involved in Their Achievement, and Summary of Current and Needed In Vitro Tests......Page 193
An Evaluation of the Influence of UHMWPE Test Block Design on the Mechanical Performance of Bilateral Lumbar Corpectomy Constructs......Page 211
Vertebral Bone Density-A Critical Element in the Performance of Spinal Implants......Page 219
Author Index......Page 233
Subject Index......Page 235
Foreword......Page 3
Contents......Page 5
Overview......Page 7
History of lsola-VSP Fatigue Testing Results with Correlation to Clinical Implant Failures......Page 11
Gauge Length and Mobility of Test Blocks Strongly Affect the Strength and Stiffness of Posterior Occipito-Cervico-Thoracic Corpectomy Constructs......Page 25
Relative 3 Dimensional Motions between End Vertebrae in a Bi-level Construct, the Effect of Fixture Constraints on Test Results......Page 32
Spinal Implant Transverse Rod Connectors: A Delicate Balance Between Stability and Fatigue Performance......Page 42
Corrosion on Spinal Implant Constructs: Should Standards Be Revised?......Page 48
Effect of Transverse Connector Design on Development of Late Operative Site Pain: Preliminary Clinical Findings......Page 53
Interconnection Strength Testing and its Value in Evaluating Clinical Performance......Page 61
Protection of the Longitudinal Member Interconnection by ASTM F 1798-97 Interconnection Mechanism and Subassemblies Standard Guide......Page 69
Clinical Relevance of Pull-out Strength Testing of Pedicle Screws......Page 74
Extrusion of Interbody Fusion Devices-Clinical Examples......Page 85
"Is Push-out Testing of Cage Devices Worthwhile in Evaluating Clinical Performance?"......Page 90
A Comparison of Two Strength-Testing Methodologies for Interbody Structural Allografts for Spinal Fusion......Page 96
The Influence of In Vitro Testing Method on Measured Intervertebral Disc Characteristics......Page 104
Testing of Human Cadaveric Functional Spinal Units to the ASTM Draft Standard, "Standard Test Methods for Static and Dynamic Characterization of Spinal Artificial Discs."......Page 117
Durability Test Method for a Prosthetic Nucleus (PN)......Page 130
Mechanical Analogue Model of the Human Lumbar Spine: Development and Initial Evaluation......Page 145
An Improved Biomechanical Testing Protocol For Evaluating Multilevel Cervical Instrumentation In A Human Cadaveric Corpectomy Model......Page 157
Influence of Preload in Flexibility Testing of Native and Instrumented Lumbar Spine Specimens......Page 175
Transverse Connectors: Clinical Objectives, Biomechanical Parameters Involved in Their Achievement, and Summary of Current and Needed In Vitro Tests......Page 193
An Evaluation of the Influence of UHMWPE Test Block Design on the Mechanical Performance of Bilateral Lumbar Corpectomy Constructs......Page 211
Vertebral Bone Density-A Critical Element in the Performance of Spinal Implants......Page 219
Author Index......Page 233
Subject Index......Page 235
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