Cervical disc prosthesis
Implanted like a cage – moves like a disc
To reproduce the natural movement of a healthy intervertebral disc – that is the goal of ROTAIO.
Nodding, shaking the head, looking to the heavens – a cervical disc prosthesis should reflect the fullness of life. This is why, in recent years, treatments with disc prostheses that preserve mobility have become an increasingly popular alternative to fusion (ACDF).
ROTAIO - facet-guided movement, no gaping joints
Yet maintaining mobility in a decompressed segment alone is not enough: there have been repeated reports of postoperative neck pain and excessive strain on the facet joints following disc replacement. To achieve good mobility, the disc prosthesis must therefore simulate the natural pattern of movement of an intervertebral disc as closely as possible. ROTAIO therefore offers not only rotation, flexion/extension and lateroflexion, but also uncoupled translation. It can therefore ideally simulate the natural center of rotation and thus facilitate facet-guided, physiological segmental movement.
ROTAIO is implanted "whole" without the need for additional preparation. The posteriorly-accentuated design allows the implant to be firmly positioned in front of the posterior edge of the intervertebral body, rendering implantation of ROTAIO comparable to that of a cage.
Gaping facet joints with conventional implant designs