Your spine, our specialty! Rediscover life without limits.
Trusted German spine specialists delivering world-class motion-preserving solutions and advanced minimally invasive surgeries.
Discover ONZ! Where precision meets compassion
Most mobility-preserving spinal instrumentation worldwide
Excellence, innovation, and unmatched precision – that’s what ONZ is known for. With decades of experience, our specialists deliver advanced spine care that sets global standards. Combining cutting-edge technology with a patient-centered approach, we are proud to offer treatments that restore mobility and improve quality of life. Our commitment to quality, precision, and results has earned us trust and recognition far beyond our borders, making ONZ a destination for patients worldwide.
Spine surgery is specialized and we treat it that way
German medical care, designed for long-term success
Not Just Another Procedure
At German Spine Specialists, we understand that spine surgery is never just another procedure. Whether it involves the cervical or lumbar spine, it’s a serious intervention that requires thoughtful planning, expert execution, and a comprehensive aftercare approach — all centered on your long-term well-being.
Everything in One Place
Unlike many providers in the US or abroad, where care is often fragmented or rushed, we offer a fully integrated experience: from initial diagnostics and personalized treatment planning to surgery and structured postoperative rehabilitation. You’ll benefit from consistent, high-level care — all in one place.
No Hand-Offs — Just One Expert Team
You won’t be passed between clinics. You won’t be treated like a number. Instead, you’ll be guided by one of the most experienced spine teams worldwide, offering advanced, evidence-based solutions tailored to your condition — whether motion-preserving or stabilizing.
Recovery That’s Taken Seriously
Some centers aim to reduce postoperative stays to just 1–2 days — which may be efficient for the system, but not always ideal for the patient. We do things differently. We take recovery seriously. That’s why we provide individualized rehab and close postoperative guidance to support your healing at every step.
Beyond the Operating Room
We plan with care, operate with precision, and stay by your side through recovery — because true spine care doesn’t end in the OR. It’s about restoring your quality of life — safely, sustainably, and successfully.
Your First Step Toward Relief
Reach out today and take the first step toward expert spine care — with a team that plans thoroughly, treats precisely, and stays by your side throughout your recovery.
The Spine Specialists.
Get the help you need from the doctors you trust
Dr. Guido Ostermann
Expert in neurosurgery with a focus on conservative, minimally invasive, and surgical approaches to managing chronic pain in the cervical and lumbar spine.
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Dr. Bernd Illerhaus
Specialist in neurosurgery, spinal surgery, and manual medicine/chirotherapy, with expertise in advanced endoscopic techniques and the treatment of degenerative and traumatic spinal conditions.
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Dr. Thomas Bierstedt
Dr. Thomas Bierstedt specializes in neurosurgery and excels in both conservative and surgical treatments for degenerative and traumatic spinal disorders.
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Experience Unmatched Spine Care with ONZ Expertise
Independent advice, world-class procedures, and care beyond the operating room.
At ONZ, we’re proud to offer advanced spine care — especially for international patients. With one of the highest case volumes worldwide, we provide motion-preserving and stabilizing solutions based on your individual condition.
Unlike many centers, we don’t discharge patients after just 1–2 days. Instead, we offer structured, personalized aftercare to ensure safe healing and long-term results.
We’re fully independent — not tied to implant brands — and focus on what’s best for your mobility and well-being.
From diagnostics to recovery, we guide you through a clear, coordinated process with expert planning and ongoing support before, during, and after surgery.
Get help today and take the first step toward world-class spine care.
Contact Us
Have questions or need more information? Send us your inquiry, and one of our dedicated specialists, located across the USA, will contact you promptly to provide personalized assistance.