Risk mitigation.
Medical due diligence for your cervical solution.

Cutting edge spinal interventions.
Your cervical solutions.


Motion preserving solutions

Artificial Disc Replacement
(disc arthroplasty)

1-level-ADR* – monosegmental
2-level-ADR* – bisegmental
3-level-ADR* – trisegmental
4-level-ADR* – quadruple segmental

Kyphosis correction surgery


Combining motion preserving & fusion

Hybrid techniques


Innovative least invasive techniques


Decide with confidence.
5 questions you should ask.

Can I expect complete mobility again?
When is the right time for surgical intervention?
Which brands/types of implants do you use, and why?
Have the implants been extensively tested and researched?
Should I rather trust a senior neurosurgeon or an orthopedic surgeon?
Regaining complete mobility is always the goal. The repair of the diseased spinal segments often results in an even better mobility. Our patients greatly benefit from short recuperation, returning to work or other activities earlier and have significantly less future problems like adjacent level disease.
A surgery is principally the last resort. However, particularly in the cervical spine early intervention is often advisable in order to prevent neurological deficits and multi-level degeneration.
When it comes to quality and applicability, not all implant types come into question. In fact, there are special criteria that demand diligent differentiation during the indication process, e.g. your individual pathology or anatomy. Understanding how and why the indications may differ is important and something to discuss with your senior surgeon.
In Germany, all medical devices (which includes spinal implants) must have undergone extensive scientific evaluation and have a proven track record. Using nonfusion technology, Germany has a long tradition of over 25 years. We only use surgical techniques that have been approved by the German authorities and provide an advantage to other methods.
ONZ spine department is a neurosurgical center specialized in spine. Our vertebrate spinal column provides intrinsic protection to the neural elements. Most spine diseases involve nerval structures including stenosis, disc herniations, adhesions, and scar tissue. Surgical solutions belong in the hands of experienced neurosurgeons. Principally, also orthopedic surgeons can specialize in lumbar spine surgery (as opposed to cervical interventions which are merely the field of neurosurgery) if surgeons are meticulous and precise.

More Questions?
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Cervical motion preserving technology.
Alternative to spinal fusion.

ONZ neurosurgeon Dr. Thomas Bierstedt about ESP disc.

The ESP disc prosthesis is made of 2 titanium alloy end-plates and an elastomeric cushion. The spikes on the end-plates outer surfaces improve primary fixation. The combination of a hydroxyapatite (HA) coating on top of a T40 rough surface are considered as one of the best existing coating. The titanium alloy used for the end plates allows clear medical imaging and guarantees good bony fixation over time.

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Implant type Triumph Lumbar Disc
Left: Implanted Triumph discs at L3/4 and L4/5
Right: Additional facet joint replacement with Acadia

ONZ neurosurgeon Dr. Bernd Illerhaus about Synergy.

The Synergy Disc is our viable alternative to fusion in patients with pre-operative alignment issues. It is available in many different sizes and configurations. It is our preferred implant type in case of kyphotic misalignments and by this restoring sagittal balance and preserving vertebral motion.

Different anatomies require different implant solutions. Principally we target to replace the pathomorphologic disc by an artificial disc that mimics the biostatical features of a natural, healthy disc. In patients with very low discal heights we have to react with the smallest implant types available.


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