Stenum Hospital 

At Stenum Hospital our Multi-specialist surgical team includes one of the most experienced spine and disc replacement surgeons in the world.

Dr. Karsten Ritter-Lang 

Dr. Ritter-Lang is among an elite group of the most experienced Disc Replacement Surgeons in the world, and has dedicated his career to the sub-specialty of Disc Replacement.

Personal assistance at every step
Our international case managers, many of them former patients, provide high touch end-to-end concierge services for international patients to guide you through the entire process with empathy and experience.

During your stay our local team will support you with everything from hospital coordination to hotel bookings, taxi services, and provide a custom patient specific 

post-op inpatient recovery stay.

We provide an all inclusive high end hotel recovery stay that includes lodging, physical therapy and other local arrangements.


A dedicated team of specialized orthopedic surgeons reviews each case carefully, and every patient receives a personalized treatment plan. 

Our doctors are available 24/7 during your hospital stay and are always ready to answer your questions. 

Our team has extensive experience working with international patients.


Your care doesn’t end once you leave the hospital. We remain your reliable point of contact no matter where you are. 

Whenever you need support, we’re here for you.


Our secure, IT-based communication system ensures that doctors, hospital staff, and our international and local case managers stay in close contact throughout your treatment. 

Combined with our strong network of partners in travel, accommodation, and local services, this integrated approach allows you to focus fully on your recovery.

We will remain in communication with you and provide follow up documentation to assist your local doctor in regards to medication and therapies. If you have any questions after your surgery, we are always just a phone call or an email away.

Disc Replacement Surgeon – Stenum Hospital

Medically Reviewed By 

Dr. Karsten Ritter-Lang

Dr. med. Karsten Ritter-Lang M.D.

Diploma of medicine (Institut of Immunology Charité)

1988 – 1991
Doctorade of medicine (Institut of Immunology Charité)

Senior consultant of spinal surgery in two hospitals (DRK Berlin Westend and Stenum Hospital) and private practice in Potsdam,ENDOCERT Certified awarded the title and certification of Specialist for Trauma Surgery (Facharzt für Unfallchirurgie) in 2009

Dr. med. Karsten Ritter-Lang

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Dr. Karsten Ritter-Lang

Ritter-Lang K

Investigated multi-axis kinematics and coupled physiological motion of viscoelastic artificial cervical discs (M6-C) compared to intact segments.

Citation: Patwardhan AG, Tzermiadianos MN, Tsitsopoulos PP, Voronov LI, Renner SM, Reo ML, Carandang G, Ritter-Lang K, Havey RM. Primary and coupled motions after cervical total disc replacement using a compressible six-degree-of-freedom prosthesis. European Spine Journal, 2012; 21(4): 618–629. 

Cervical and Lumbar Disc Arthroplasty: A Review of Current Implant Design and Outcomes – PMC

Compared safety profiles, range of motion (ROM), pain reduction (VAS), and disability scores (ODI) between single-level versus multi-level lumbar artificial disc replacements.

Citation: Schätz C, Ritter-Lang K, Gössel L, et al. Comparison of Single-Level and Multiple-Level Outcomes of Total Disc Arthroplasty: 24-Month Results. International Journal of Spine Surgery (IJSS), 2015; 9: 14

Long-term outcomes following lumbar total disc replacement with M6-L – PMC

Evaluated 24-month clinical outcomes, restoration of intervertebral disc height, and segment lordosis in lumbar degenerative disc disease treated with the M6-L prosthesis.

Ritter-Lang K, Dreßler N, Schätz C, Gössel L. Treatment of Lumbar Degenerative Disc Disease Using a Novel, Compressible Core Prosthesis: 24-Month Results. Journal of Spine, 2013; 2(5): 147 (doi:10.4172/2165-7939.1000147). 

Medovex adds Dr. Karsten Ritter-Lang to medical advisory board.