Search Results - "Sawa, Anna G. U."

A New Stand-Alone Cervical Anterior Interbody Fusion Device : Biomechanical Comparison With Established Anterior Cervical Fixation Devices by SCHOLZ, Matti, REYES, Phillip M, SCHLEICHER, Philipp, SAWA, Anna G. U, BAEK, Seungwon, KANDZIORA, Frank, MARCIANO, Frederick F, CRAWFORD, Neil R

“…A new anchored spacer-a low-profile cervical interbody fusion cage with integrated anterior fixation-was compared biomechanically to established anterior…”
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Use of digital imaging correlation techniques for full-field strain distribution analysis of implantable devices and tissue in spinal biomechanics research by Kelly, Brian P., Silva, Casey R., Lehrman, Jennifer N., Sawa, Anna G.U., de Andrada Pereira, Bernardo, Godzik, Jakub, Turner, Jay D.

“…Few studies have used optical full-field surface strain mapping to study spinal biomechanics. We used a commercial digital imaging correlation (DIC) system to…”
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Does the Choice of Spinal Interbody Fusion Approach Significantly Affect Adjacent Segment Mobility? by Wangsawatwong, Piyanat, Sawa, Anna G.U., Pereira, Bernardo de Andrada, Lehrman, Jennifer N., Turner, Jay D., Uribe, Juan S., Kelly, Brian P.

“…Study Design. Biomechanical study of range of motion (ROM) at the vertebral levels adjacent to the construct of posterior pedicle screw-rod fixation with…”
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Biomechanical Effects of Facet Joint Violation After Single-Level Lumbar Fusion With Transpedicular Screw and Rod Instrumentation by Wangsawatwong, Piyanat, de Andrada Pereira, Bernardo, Lehrman, Jennifer N., Sawa, Anna G.U., O’Neill, Luke K., Turner, Jay D., Uribe, Juan S., Kelly, Brian P.

“…In vitro biomechanical study. This study aimed to investigate the biomechanical effects of facet joint violation (FV) on mobility and optically tracked…”
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Pedicle Subtraction Osteotomy Construct Optimization: A Cadaveric Study of Various Multirod and Interbody Configurations by Pereira, Bernardo de Andrada, Godzik, Jakub, Lehrman, Jennifer N., Sawa, Anna G.U., Hlubek, Randall J., Uribe, Juan S., Kelly, Brian P., Turner, Jay D.

“…Fourteen cadaveric specimens were separated into two groups: (1) L3 pedicle subtraction osteotomy (PSO) with transforaminal lumbar interbody fusion (TLIF) or…”
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Biomechanical effects of a novel posteriorly placed sacroiliac joint fusion device integrated with traditional lumbopelvic long-construct instrumentation by de Andrada Pereira, Bernardo, Lehrman, Jennifer N, Sawa, Anna G U, Lindsey, Derek P, Yerby, Scott A, Godzik, Jakub, Waguespack, Alexis M, Uribe, Juan S, Kelly, Brian P

“…S2-alar-iliac (S2AI) screw fixation effectively ensures stability and enhances fusion in long-segment constructs. Nevertheless, pelvic fixation is associated…”
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Biomechanics of a laterally placed sacroiliac joint fusion device supplemental to S2 alar-iliac fixation in a long-segment adult spinal deformity construct: a cadaveric study of stability and strain distribution by de Andrada Pereira, Bernardo, Wangsawatwong, Piyanat, Lehrman, Jennifer N, Sawa, Anna G U, Lindsey, Derek P, Yerby, Scott A, Godzik, Jakub, Waguespack, Alexis M, Uribe, Juan S, Kelly, Brian P

“…S2 alar-iliac (S2AI) screw fixation effectively enhances stability in long-segment constructs. Although S2AI fixation provides a single transarticular…”
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Influence of Spinal Deformity Construct Design on Adjacent-Segment Biomechanics by Koffie, Robert M, de Andrada Pereira, Bernardo, Lehrman, Jennifer N, Godzik, Jakub, Sawa, Anna G U, Gandhi, Shashank V, Kelly, Brian P, Uribe, Juan S, Turner, Jay D

“…Adjacent level degeneration is a precursor to construct failure in adult spinal deformity surgery, but whether construct design affects adjacent level…”
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Adjacent-segment effects of lumbar cortical screw-rod fixation versus pedicle screw-rod fixation with and without interbody support by Wangsawatwong, Piyanat, Sawa, Anna G U, de Andrada Pereira, Bernardo, Lehrman, Jennifer N, O'Neill, Luke K, Turner, Jay D, Uribe, Juan S, Kelly, Brian P

“…Cortical screw-rod (CSR) fixation has emerged as an alternative to the traditional pedicle screw-rod (PSR) fixation for posterior lumbar fixation. Previous…”
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Optimizing Cervicothoracic Junction Biomechanics after C7 Pedicle Subtraction Osteotomy: A Cadaveric Study of Stability and Rod Strain by Godzik, Jakub, Lehrman, Jennifer N., Farber, S. Harrison, de Andrada Pereira, Bernardo, Sawa, Anna G.U., Ames, Christopher P., Koller, Heiko, Lee, Kevin, Turner, Jay D., Kelly, Brian P.

“…To compare biomechanical stability and rod strain among uniform rod (UR), tapered rod (TR), and UR+accessory rod (AR) constructs in a human cadaveric C7…”
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Subtle segmental angle changes of single-level lumbar fusions and adjacent-level biomechanics: cadaveric study of optically measured disc strain by de Andrada Pereira, Bernardo, Wangsawatwong, Piyanat, Lehrman, Jennifer N, Sawa, Anna G U, Farber, S Harrison, Godzik, Jakub, O'Neill, Luke K, Uribe, Juan S, Kelly, Brian P, Turner, Jay D

“…Changes to segmental lordosis at a single level may affect adjacent-level biomechanics and overall spinal alignment with an iatrogenic domino effect commonly…”
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Biomechanics of open versus minimally invasive deformity correction:​ comparison of stability and rod strain between pedicle subtraction osteotomy and anterior column realignment by Godzik, Jakub, de Andrada Pereira, Bernardo, Sawa, Anna G U, Lehrman, Jennifer N, Mundis, Gregory M, Hlubek, Randall J, Uribe, Juan S, Kelly, Brian P, Turner, Jay D

“…Anterior column realignment (ACR) is a new minimally invasive approach for deformity correction that achieves a degree of lordosis similar to that obtained…”
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Impact of dual-headed pedicle screws on the biomechanics of lumbosacral junction multirod constructs by Godzik, Jakub, de Andrada Pereira, Bernardo, Sawa, Anna G U, Lehrman, Jennifer N, Hlubek, Randall J, Kelly, Brian P, Turner, Jay D

“…The objective of this study was to evaluate a novel connector design and compare it with traditional side connectors, such as a fixed-angle connector (FAC) and…”
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Variations Among Human Lumbar Spine Segments and Their Relationships to In Vitro Biomechanics: A Retrospective Analysis of 281 Motion Segments From 85 Cadaveric Spines by Sawa, Anna G U, Lehrman, Jennifer N, Crawford, Neil R, Kelly, Brian P

“…Biomechanical properties of intact spinal motion segments are used to establish baseline values during in vitro studies evaluating spinal surgical techniques…”
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Biomechanical Assessment of a Novel Sharp-Tipped Screw for 1-Step Minimally Invasive Pedicle Screw Placement Under Navigation by de Andrada Pereira, Bernardo, O'Neill, Luke K, Sawa, Anna G U, Zhou, James J, Wangsawatwong, Piyanat, Lehrman, Jennifer N, Godzik, Jakub, Oldham, Alton J, Turner, Jay D, Kelly, Brian P, Uribe, Juan S

“…The objective of this study was to assess the pullout force of a novel sharp-tipped screw developed for single-step, minimally invasive pedicle screw placement…”
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Rod Attachment Induces Significant Strain in Lumbosacral Fixation by Sawa, Anna G.U., Wangsawatwong, Piyanat, Lehrman, Jennifer N., Hostetler, Taylor, de Andrada Pereira, Bernardo, Godzik, Jakub, Hlubek, Randall J., Uribe, Juan S., Turner, Jay D., Kelly, Brian P.

“…This was a laboratory investigation. Rod attachment can induce significant pedicle screw-and-rod pre- strain that may predispose the instrumentation to…”
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In Vitro Biomechanics of Human Cadaveric Cervical Spines With Mature Fusion by Sawa, Anna G U, de Andrada Pereira, Bernardo, Rodriguez-Martinez, Nestor G, Reyes, Phillip M, Kelly, Brian P, Crawford, Neil R

“…This study sought to compare index and adjacent-level biomechanics of cadaveric specimens with mature fusion versus normal spines in intact and acutely fused…”
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Influence of Lumbar Lordosis on Posterior Rod Strain in Long-Segment Construct During Biomechanical Loading: A Cadaveric Study by Pereira, Bernardo de Andrada, Sawa, Anna G.U., Godzik, Jakub, Lehrman, Jennifer N., Uribe, Juan S., Turner, Jay D., Kelly, Brian P.

“…Objective: The lordotic shape of the lumbar spine differs substantially between individuals. Measuring and recording strain during spinal biomechanical tests…”
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Biomechanical Effects of Proximal Polyetheretherketone Rod Extension on the Upper Instrumented and Adjacent Levels in a Human Long-Segment Construct: A Cadaveric Model by Pereira, Bernardo de Andrada, Lehrman, Jennifer N., Sawa, Anna G.U., Wangsawatwong, Piyanat, Godzik, Jakub, Xu, David S., Turner, Jay D., Kelly, Brian P., Uribe, Juan S.

“…Objective: The high mechanical stress zone at the sudden transition from a rigid to flexible region is involved in proximal junctional kyphosis (PJK)…”
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The use of surface strain data and a neural networks solution method to determine lumbar facet joint loads during in vitro spine testing by Sawa, Anna G.U, Crawford, Neil R

“…Abstract A new method for determining facet loads during in vitro spine loading using strain gauges and a neural networks solution method was investigated. A…”
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