cervical, disc prosthesis, motion preservation

ROTAIO

Cervical Disc Prothesis

Spine categories

Cervical

Posterirly oriented, one-piece prosthesis design
Variable centre of rotation
Proven surface teeth fixation

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The ROTAIO® disc prosthesis was developed for the specific requirements of the cervical spine (C3 – C7). Despite the highly complex joint kinematics of ROTAIO®, the surgical implementation remains simple. ROTAIO® is implanted ‘in one piece’ using the proven Smith–Robinson technique.

The prosthesis is available in various footprints and heights to enable adaptation to different patient anatomies.

ROTAIO® is inserted in the C3 – C7 spinal region. As well as the simple implantation procedure, the large footprints of the disc prosthesis maximise the area of contact with the vertebral body. This helps to prevent unwanted fusion of the segment. We have retained the product features of our proven RABEA® cages in the form of the tried and tested endplate serrations. This ensures secure primary stabilisation of the segment while at the same time minimising bone resection.

To reproduce the natural movement of a healthy intervertebral disc – that is the goal of ROTAIO®. This means not merely the preservation but above all the quality of movement of a natural intervertebral disc is prioritised. Along with rotation, flexion/extension and lateral bending, ROTAIO® therefore enables the option of uncoupled translation and thus of physiological facet-guided segment movement.

ROTAIO® can thus be summed up in one sentence:
implantable like a cage – moves like a Disc.

Safety oriented prosthesis design

One-piece prosthesis design for safe handling: Implantable like a cage
Rectangular geometry with large contact surface area with the vertebral body – for secure implant seating and reduced risk of subsidence

Tested mechanics

A comprehensive series of cyclic, dynamic and static tests going beyond the studies required for marketing authorisation

Increased roughness in conjunction with proven SIGNUS toothed cage design

Secure anchoring in the bone owing to high primary stability
No keel preparation required
Reduced risk of implant migration

Physiological mobility

Range of motion is defined by anatomical structures and not by the disc prosthesis
Posteriorly-accentuated implant design
Perfectly adapted to the natural anatomy
Variable centre of rotation corresponds to the natural centre of motion of the cervical spine
Controlled translation uncoupled from rotation
Allows for facet-guided movement, with no gaping joints

Pre-mounted, in sterile packaging

No assembly necessary, ready for use

The ROTAIO® disc prosthesis is made up of several material components that offer a number of benefits for application. A cobalt-chrome-molybdenum (CoCrMo) alloy was selected for the bearing surfaces. This metal is characterised by very good biomechanical and tribological properties. The endplates are manufactured from a titanium alloy (Ti-6Al-4V) that improves the osteointegration thanks to the specially roughened surface.

Here you get to the eifu of ROTAIO.