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Showing 1 to 6 of 6 for “"spine robot"”.
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Use of a Spine Robot Employing a Real Time Force Control Algorithm to Develop, Simulate, and Compare Spinal Biomechanical Testing Protocols: Eccentric Loading, Pure Moment, and a Novel Head Weight Protocol
… the biomechanics of the subaxial cervical spine. Previous common testing protocols used to evaluate the subaxial cervical spine include Pure Moment (PM), follower load, and eccentric lever arm (EL) loading methods. Although these methods are widely accepted, there is always a goal to try to …
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Robotic Simulation of Disc Arthroplasty Surgery: Influence of Surgical Placement on Motion Segment Dynamics
… were tested in flexion/extension using the Spine Robot to an end load limit of 8Nm. A fixed axis protocol was used to impose a pure rotation about a desired anatomical location. The Spine Robot was programmed to rotate the MSU about the COR of the implant. Subsequently, with the MSU held …
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Use of a Multi-Axis Robotic Testing Platform to Investigate the Sagittal Mechanics of the Multi-Body Lumbar Spine
… compare range of motion of the multi-body lumbar spine using three different protocols: pure moment, eccentric loading, and a new method called combined loading moment. The objectives of the study were to introduce a new protocol that overcomes the limitations of previous methods by applying more …
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A Kinematics-Based Testing Protocol to Study the Mechanics of the Human Lumbar Spine
… lumbar MSUs were mounted in a custom designed spine robot and flexed or extended about six unique points of rotation located ¼, ½, and ¾ of the anterior-posterior depth of the intervertebral disc and at similar points located 5mm below the endplate of the subjacent body. The MSUs were rotated …
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A Passive Pure Moment Protocol for Testing Spine Segments: Development and Application
… a pure moment protocol using a programmable spine robot, and use the data gathered to calculate the IAR for harvested specimen and those implanted with a constrained total disc replacement (TDR) device.</p> <p> Six human lumbar single-level motion segment units (MSUs) at the L4-L5 level were …
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Kinematic Demands of Nucleus Arthroplasty Technology
… the effort or work required to move the altered spine condition through a prescribed kinematic path relative to the intact spine condition. The closer the loading mechanics of the altered spine are to the intact spine condition, the better the likelihood the device will restore the native …