METHOD AND APPARATUS FOR REPLACING THE FUNCTION OF FACET JOINTS

摘要

Abstract A system and method is provided for replacing the functions of a facet joint between a superior vertebra and an inferior vertebra without necessarily requiring an anatomical implant. The method includes: providing one or more flexible posterior devices to replace main functions of the facet jointin that the flexible device applies a distracting force between the vertebra; and adapting a first one of the one or more posterior devices for a first attachment to a first pedicle, and a second attachment to a second pedicle. Further disclosed are devices comprising two posterior devices, one compression-resistant and one expansion-resistant.Also disclosed is a rod for a posterior spinal stabiliser comprising two elastic members, connected by a joint to replace the function of the facet joint.