Bioflex System (Bio-Spine, Inc.) is a pedicle screwbased system which uses a Nitinol rod shaped with one or two loops intended to confer stability in flexion, extension and lateral bending. Nitinol is an alloy of nickel and titanium, commonly referred to as “memory metal” for its ability to return back to its original shape after deformation.
Bioflex System is no longer available.
The strengths of the rod shapes combined with the material properties allow Bioflex to convert abnormal motion segments into physiologic movement segments, preventing degenerative changes in the adjacent segments, and reducing instrument failures. The screw head has a design-specific advantage; it has two grooves, each of which is insertion spaces for the rods, allowing multilevel fixations and extension of the whole system in case of operation on other segments. This makes the system connectable, and due to the 3-D flexibility of the rods, natural lordosis is possible without bending the rods during the surgery.Bioflex semirigid stabilization for fusion technology Semirigid Stabilzation Strong support for better physiological bone fusion without stress shield Bioflex Dynamic stabilization for non fusion technology Dynamic Stabilization Preserving motion while stabilizing the segments during flexion, extension, lateral bending, and rotation.
Features:
- The alternative to the traditional rigid system
- 4mm/diameter Nitionol/titamum alloy coiled springs
- Natural 3-D balance spring rods
- Prevents degeneratin of adjacent segments
- Redueced instrument failares
Surgical Advantages:
- Multilevel segmental connection
- Easy to use
- No rod bending
- Low profile device
- Minomal invasive surgical insertion
About Pedicle Screw/Rod–Based Dynamic Stabilization Devices
Dynamic stabilization is a surgical technique designed to allow for some movement of the spine, while maintaining enough stability to prevent too much movement. Pedicle-based dynamic devices were first designed to stabilize the abnormal segment and to unload degenerated discs and facet joints, while maintaining the same level of normal motion.By unloading the pressure on the degenerated disc and facets, pedicle-based dynamic devices have the potential to reduce pain associated with these anatomical structures. Furthermore, these devices can be used to prevent adjacent-segment disease, either by replacing the whole construct with dynamic rods or by “topping off” the rigid instrumented segment with pedicle-based dynamic devices, avoiding an abrupt change from a rigid construct to the more mobile adjacent segment. It has also been argued that using pedicle-based dynamic devices can promote better fusion because of micromovements across endplates, and can protect from implant failure because of better load sharing through the implant. Finally, these devices can be used to stabilize posterior iatrogenic destabilizing surgery, such as wide laminectomy and facetectomy.