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Analytical, Diagnostic and Therapeutic Techniques and Equipment Commons™
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Full-Text Articles in Analytical, Diagnostic and Therapeutic Techniques and Equipment
A Novel Distractive And Mobility-Enabling Lumbar Spinal Orthosis For Treating Mechanical Low Back Pain, Daniel Clay Hillyard
A Novel Distractive And Mobility-Enabling Lumbar Spinal Orthosis For Treating Mechanical Low Back Pain, Daniel Clay Hillyard
Theses and Dissertations (ETD)
Introduction: Lumbar spinal orthoses (LSOs) are often used as non-surgical treatment and serve to support the spine and alleviate low back pain. More recently, dynamic orthoses claiming to decompress the spine have been introduced. Currently, there is an unserved population of people that suffer from mechanical low back pain (LBP) conditions, such as degenerative disc disease or lumbar foraminal stenosis, that would benefit from spinal decompression and mobility. A previously-developed prototype of dynamic mobility orthosis (DMO1) was designed that provided a distractive load across the lumbar spine but required higher sagittal bending moments and was unable to maintain spinal off-loading …
A Kinematics-Based Testing Protocol To Study The Mechanics Of The Human Lumbar Spine, Nephi A. Zufelt
A Kinematics-Based Testing Protocol To Study The Mechanics Of The Human Lumbar Spine, Nephi A. Zufelt
Theses and Dissertations (ETD)
The objective of this work was to develop a new kinematics-based testing protocol to quantify the axial and shear force components and rotational moment properties of the human cadaveric lumbar motion segment unit (MSU) in response to specific kinematic inputs. Modern, non-fusion spinal devices claim to treat degenerative disc disease better than traditional fusion surgery. Though there have been many biomechanical studies completed on these devices, there is still a debate over their efficacy. Conventional testing methods provide insight into the rotational properties of the MSU but lack the sensitivity or capacity to quantify lumbar MSU’s mechanical properties including shear …
Biomechanical Testing Of Two-Level Cervical Disc Arthroplasty, Laura J. Gilmour
Biomechanical Testing Of Two-Level Cervical Disc Arthroplasty, Laura J. Gilmour
Theses and Dissertations (ETD)
In vitro biomechanical studies comparing two-level cervical disc arthroplasty with two-level fusion were completed using an established cadaveric cervical spine model. Three conditions were tested: non-instrumented, instrumented with two-level fusion (C5-C6 and C6-C7), and instrumented with two-level arthroplasty (C5-C6, C6-C7) using the Prestige Low-Profile (Medtronic Sofamor Danek, Memphis TN) or ProDisc-C (Synthes Spine, West Chester PA) prosthetic disc. Specimens were tested non-destructively in physiologic flexion-extension, lateral bending, and axial rotation to an end-limit load of 3-Nm or 45o rotation. Rotations at the superior, implanted, and inferior motion segment units (MSU) of the instrumented conditions were normalized to the non-instrumented condition …