dynesys system
Pronunciation: DIE-neh-sis
A dynamic posterior stabilization system using flexible rods and spacers to provide motion preservation while offering stability.
Full Definition
The Dynesys system is a dynamic posterior spinal stabilization device designed to provide controlled motion while maintaining stability. It consists of pedicle screws connected by flexible polyethylene terephthalate (PET) cords with polycarbonate urethane (PCU) spacers. This system aims to preserve some degree of spinal motion while providing sufficient stability to promote healing and prevent further degeneration. The Dynesys system is considered an alternative to rigid fusion in select cases where motion preservation is desired, particularly in treating degenerative disc disease with instability.
Usage
Usage note: Capitalize as proprietary device name; specify levels treated.
In Context
- "A Dynesys system was implanted to provide dynamic stabilization at L4-L5." — operative report
- "The patient underwent motion-preserving surgery with Dynesys instrumentation." — discharge summary