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Figure 1 | BMC Musculoskeletal Disorders

Figure 1

From: Effects of cord pretension and stiffness of the Dynesys system spacer on the biomechanics of spinal decompression- a finite element study

Figure 1

The finite element model used in this study. (A). The intact spine. (B). The intact spine implanted with the Dynesys system in place between L3 and L4. (C). The spine after laminectomy and facetectomy between L3 and L4 implanted with the Dynesys system in place. (D). The Dynesys system consists of conical titanium alloy pedicle screws, hollow polycarbonate urethane (PCU) spacers and polyethylene terephthalate (PET) cords [20].

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