spinal stabilization Articles
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Finite element modeling of the full lumbar spine with an intervertebral disc nucleus replacement device
Introduction Nucleus replacement technologies are a minimally invasive treatment for degenerative tSsc disease. Nucleus replacement may better restore the natural biomechanics of the spine compared to alternative treatments. Finite element (FE) modeling can be used to determine the biomechanics associated with nucleus replacement devices. A novel nucleus replacement device was ...
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Biomechanical Flexibility Testing of an in Situ-Cured Silicone-Based Disc Nucleus Prosthesis
A new intervertebral disc nucleus replacement device having three major features has been designed, comprising: 1) a peripheral textile band, 2) a silicone membrane filled with silicone that cures in situ forming an elastomeric implant and 3) an internal chamber that allows for deformation of the cured component (Figure 1). Samples of this device were subjected to biomechanical flexibility ...
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Long-Term Outcomes Following Lumbar Nucleus Replacement
Abstract Background Nucleus replacement devices are designed to replace the native pain-generating lumbar nucleus while preserving the annulus fibrosus, endplates, and natural motion. The DASCOR Disc Arthroplasty Device seemed to perform well clinically but was discontinued in 2009. While there are no commercially available NRDs today, the potential advantages of using such devices have ...
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Biomechanical Evaluation of an In Situ Cured Silicone Rubber Nucleus Replacement Device
A new intervertebral disc nucleus replacement device having three major features has been designed, comprising: 1) a peripheral textile band, 2) a silicone membrane filled with silicone that cures in situ forming an elastomeric implant and 3) an internal chamber that allows for deformation of the cured component (Figure 1). Samples of this device were subjected to biomechanical flexibility ...
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Finite Element Study of a Lumbar Intervertebral Disc Nucleus Replacement Device
Nucleus replacement technologies are a minimally invasive alternative to spinal fusion and total disc replacement that have the potential to reduce pain and restore motion for patients with degenerative disc disease. Finite element modeling can be used to determine the biomechanics associated with nucleus replacement technologies. The current study focuses on a new nucleus replacement device ...
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Performance Tes-ng of an Injectable Silicone Rubber Based Nucleus Replacement Device
A novel intervertebral disc nucleus replacement device is comprised of an elas-c silicone membrane filled with liquid in situ curable silicone to form an elastomeric implant surrounding a central gas chamber that allows inward deforma-on of the cured component under load. Samples of this device were subjected to finite element analysis (FEA), digital pressure mapping and biomechanical flexibility ...
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“Y” Shaped Sacral Fragility Fracture Treatment with the Curvafix IM System - Case Study
CASE PRESENTATION A 68-year-old female with some dysmorphism and mild osteoporosis had a fall in the shower, resulting in a Y-shaped sacral fracture and non-displaced fractures of the superior and inferior pubic ...
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Ultrastructural characterisation of the hydroxyapatite–coated pedicle screw and human bone interface
The early fixation of pedicle screws is crucial for improving spinal stabilisation. Firm and immediate fixation between pedicle screws and bone prevents aseptic loosening and implant failure. Coating with hydroxyapatite is a possible method to improve the fixation of metallic implants in bone. In this study, scanning transmission electron microscopy (STEM) has been used to investigate the ...
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Advantages of using Spine 3D(CT-based) Navigation in complex Spine Surgeries
To confidently perform a spinal fusion and screw fixation with excellence surgical navigation is consistently used as a powerful tool. Surgical Navigation provides real-time guidance and precise measurements for accurately placing the pedicle screws to help stabilize the spine. A preoperative CT scan gives a detailed visualization of the structure decreasing the potential for implant-related ...
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