A protocol to evaluate semi-rigid pedicle screw systems.

J D Clausen; V K Goel; K Sairyo; M Pfeiffer

doi:10.1115/1.2796102

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A protocol to evaluate semi-rigid pedicle screw systems.

J D Clausen·V K Goel·K Sairyo·M Pfeiffer

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Abstract

The objective of the current study was to develop an in vitro testing protocol to evaluate semi-rigid pedicle screw devices. A corpectomy model protocol exists to evaluate rigid spinal implants; however, semi-rigid devices are contraindicated for this condition. This paper describes a technique that simulates more closely the conditions a semi-rigid device would see in vivo. Finally, the new testing protocol is used to evaluate the DDS pedicle screw-cable system. Benefits and shortcomings of the new protocol are discussed.

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Bone Screws Equipment Design Equipment Failure Materials Testing Spinal Fusion Tensile Strength Journal Article Research Support, Non-U.S. Gov't

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J D Clausen, V K Goel, K Sairyo, M Pfeiffer. 1997. A protocol to evaluate semi-rigid pedicle screw systems.. https://doi.org/10.1115/1.2796102

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