Characteristics of immediate and fatigue strength of a dual-threaded pedicle screw in cadaveric spines
…, BCR Lazaro, PM Reyes, AGUS Newcomb… - The Spine Journal, 2013 - Elsevier
Background context Novel dual-threaded screws are configured with overlapping (doubled)
threads only in the proximal shaft to improve proximal cortical fixation. Purpose Tests were …
threads only in the proximal shaft to improve proximal cortical fixation. Purpose Tests were …
Biomechanical evaluation of lateral lumbar interbody fusion with secondary augmentation
MT Reis, PM Reyes, I Altun, AGUS Newcomb… - … of Neurosurgery: Spine, 2016 - thejns.org
OBJECTIVE Lateral lumbar interbody fusion (LLIF) has emerged as a popular method for
lumbar fusion. In this study the authors aimed to quantify the biomechanical stability of an …
lumbar fusion. In this study the authors aimed to quantify the biomechanical stability of an …
Effect of screw position on load transfer in lumbar pedicle screws: a non-idealized finite element analysis
AGUS Newcomb, S Baek, BP Kelly… - Computer methods in …, 2017 - Taylor & Francis
Angled screw insertion has been advocated to enhance fixation strength during posterior
spine fixation. Stresses on a pedicle screw and surrounding vertebral bone with different screw …
spine fixation. Stresses on a pedicle screw and surrounding vertebral bone with different screw …
Biomechanical and endplate effects on nutrient transport in the intervertebral disc
…, BT Munter, KJ Eyster, GD Ide, AGUS Newcomb… - World neurosurgery, 2017 - Elsevier
Background Physical data are lacking on nutrient transport in human intervertebral discs (IVDs),
which support regeneration. Our objective was to study nutrient transport in porcine …
which support regeneration. Our objective was to study nutrient transport in porcine …
The role of obesity in the biomechanics and radiological changes of the spine: an in vitro study
…, S Kalb, PM Reyes, AGUS Newcomb… - … of Neurosurgery: Spine, 2016 - thejns.org
OBJECT The effects of obesity on lumbar biomechanics are not fully understood. The aims
of this study were to analyze the biomechanical differences between cadaveric L4–5 lumbar …
of this study were to analyze the biomechanical differences between cadaveric L4–5 lumbar …
Supplemental rods are needed to maximally reduce rod strain across the lumbosacral junction with TLIF but not ALIF in long constructs
J Godzik, RJ Hlubek, AGUS Newcomb, JN Lehrman… - The Spine Journal, 2019 - Elsevier
Background Context Rod fracture at the lumbosacral (LS) junction remains challenging in
long segment fusions and likely stems from increased LS strain. Reduction of LS …
long segment fusions and likely stems from increased LS strain. Reduction of LS …
Biomechanical stability afforded by unilateral versus bilateral pedicle screw fixation with and without interbody support using lateral lumbar interbody fusion
J Godzik, E Martinez-del-Campo, AGUS Newcomb… - World neurosurgery, 2018 - Elsevier
Objective To determine the stability of fusion constructs with unilateral pedicle screw (UPS)
or bilateral pedicle screw (BPS) fixation with and without an interbody implant using the …
or bilateral pedicle screw (BPS) fixation with and without an interbody implant using the …
In vitro biomechanical evaluation of a novel, minimally invasive, sacroiliac joint fixation device
…, N Slater, JN Lehrman, AGUS Newcomb… - International journal of …, 2018 - ijssurgery.com
Background: Sacroiliac (SI) joint pathology may result in low-back pain, which causes
substantial disability. Treatment failure with operative management of SI pain may be related to …
substantial disability. Treatment failure with operative management of SI pain may be related to …
Biomechanical evaluation of a metal-on-metal cervical intervertebral disc prosthesis
KO Colle, JB Butler, PM Reyes, AGUS Newcomb… - The Spine Journal, 2013 - Elsevier
Background context In vitro nondestructive flexibility testing of the CerviCore total disc
replacement (TDR) was performed. It was hypothesized that TDR would not significantly alter …
replacement (TDR) was performed. It was hypothesized that TDR would not significantly alter …
Iliac screws may not be necessary in long-segment constructs with L5–S1 anterior lumbar interbody fusion: cadaveric study of stability and instrumentation strain
RJ Hlubek, J Godzik, AGUS Newcomb, JN Lehrman… - The Spine Journal, 2019 - Elsevier
BACKGROUND CONTEXT Lumbosacral pseudoarthrosis and instrumentation failure is
common with long-segment constructs. Optimizing lumbosacral construct biomechanics may …
common with long-segment constructs. Optimizing lumbosacral construct biomechanics may …