Although the Dynesys system was designed to preserve motion of stabilized segments and prevent degeneration at the adjacent segments by decreasing stress and preventing hypermobility, it is still controversial whether or not dynamic stabilization
can prevent the occurrence of ASD.
In dynamic stabilization
systems, several studies documented a higher loosening rate, but no association with pain symptoms or infections was found.
Sun, "Comparison of the dynesys dynamic stabilization
system and posterior lumbar interbody fusion for lumbar degenerative disease," PLoS ONE, vol.
but, more importantly, they also offer the dynamic stabilization
attributes that enhance milling efficiency.
Curtain, "Dynamic stabilization
of regular linear systems," IEEE Transactions on Automatic Control, vol.
Wang, "Classification of posterior dynamic stabilization
devices," Neurosurgical Focus, vol.
Some of the other growth restraining factors of the China spinal infusion market can be growing awareness for some other treatment methods such as IDET, artificial disc, posterior dynamic stabilization
, disc regeneration.
Nonfusion devices, also known as dynamic stabilization
or motion preservation devices, aim to maintain or only moderately reduce the mobility of a motion segment and thereby decrease or eliminate adjacent level degeneration.
Together, the combined entity will leverage a variety of technology, including modem fusion, dynamic stabilization
, artificial disc replacement, biologics, vertebral augmentation, interspinous process decompression, disc disease diagnosis, navigation and minimally invasive techniques to serve patients with a broader variety of spinal disorders.
 classified posterior dynamic stabilization
devices into three categories: (1) hybrid stabilization device with pedicle screw/rod construct such as DTO[R] and Dynesys (we defined it as HSD in this manuscript); (2) interspinous process devices (IPD) such as Wallis, XSTOP, DIAM, and Coflex; (3) total facet replacement system.
Spinal non-fusion products, such as dynamic stabilization
devices (motion preservation devices) have become the treatment of choice especially for young patients, in comparison to the other two segments of the spinal non-fusion segment, namely, interspinous process decompression (IPD) devices and total disc replacement devices.
Recently, the company received the CE mark for its Flex+2 dynamic stabilization
rod for spine and 510(k) clearance from the U.S.