Discover More About Unique ELiS Composite Coating
Patented coating improving bone ingrowth by up to 30%
increasing the comfort of life
Why ELiS
Unmatched variety of size and configuration options
Ten stem sizes, three neck geometries,each available in four lengths, together with two dual-mobility cups in two sizes create up to 480 possible combinations. This broad configurability allows surgeons to achieve a precise anatomical fit tailored to each patient’s individual geometry.
Patented composite coating enhancing bone ingrowth by 30%
The patented composite coating supports enhanced osseointegration, achieving up to 30% greater bone ingrowth compared with conventional Ti+HA or Ti coatings.
This promotes early and strong implant fixation, even in patients with reduced bone quality.
Controlled and precise bone preparation using a guidewire technique
The guidewire-based technique allows controlled and precise bone preparation. Dedicated measuring instruments help optimize cup positioning and sizing, improving surgical accuracy and reproducibility. Whether for experienced surgeons or those newly adopting the technique.
12+ years
years follow-up
4+ years
dual mobility
4000+
implants, European clinical experience
ELiS trapezium replacement
Indications for ELiS Arthroplasty
0%
of all patients with CMC OA
are indicated for surgical intervention
Symptomatic osteoarthritis of the thumb CMC joint
ELiS arthroplasty is indicated for patients suffering from painful degeneration of the trapeziometacarpal joint.
Eaton–Littler stage II–IV osteoarthritis
Suitable for moderate to advanced stages of CMC joint osteoarthritis where conservative treatment no longer provides sufficient relief. SEE BELLOW
Pain, loss of function, and reduced pinch strength
Indicated for patients experiencing limitations in daily activities due to thumb pain, instability, or decreased grip and pinch strength.
Failure of conservative treatment
Recommended when non-surgical approaches such as splinting, physiotherapy, or injections do not provide lasting improvement.
Eaton Phases
- Eaton I
- Eaton II
- Eaton III
- Eaton IV
Eaton I
Early Stage
Eaton stage I CMC osteoarthritis represents the earliest phase with minimal radiographic changes, slight joint space narrowing, and no subchondral sclerosis or osteophyte formation.
Conservative treatment is indicated (orthosis, NSAIDs, corticosteroid injections).
~0% indication for arthroplasty
Indications for arthroplasty:
❌ Not indicated. Patients are monitored for disease progression and potential surgical treatment at later stages.
Eaton II
Mild Osteoarthritis
Eaton stage II CMC osteoarthritis is characterized by mild to moderate degenerative changes, minor joint space narrowing, and osteophytes smaller than 2 mm.
Conservative therapy remains first-line, though minimally invasive procedures may be considered in symptomatic cases.
~25% indication for arthroplasty
Indications for arthroplasty:
⚠️ Considered for symptomatic patients not responding to conservative treatment, especially younger and more active individuals seeking to preserve thumb mobility and function.
Eaton III
Advanced Osteoarthritis
Eaton stage III CMC osteoarthritis shows significant joint space narrowing, osteophytes larger than 2 mm, and subchondral sclerosis with deformity of the articular surface.
The ELiS implant is indicated for suitable candidates with good bone quality.
~75% indication for arthroplasty
Indications for arthroplasty:
✅ Strongly indicated. Artroplasty of the CMC joint is preferred over trapeziectomy in active patients who wish to maintain thumb strength and range of motion.
Eaton IV
Generalized Osteoarthritis
Eaton stage IV CMC osteoarthritis involves degenerative changes extending to adjacent joints, especially the scaphotrapeziotrapezoid (STT) complex.
Treatment choice depends on the degree of STT involvement and patient age.
~50% indication for arthroplasty
Indications for arthroplasty:
⚠️ Selective indication. May be combined with other surgical approaches, such as STT arthrodesis, in carefully chosen patients.
solution of this
ELiS CMC Replacement
The ELiS implant restores physiological thumb mobility, relieves pain and discomfort during movement, and helps patients regain natural hand function while preserving muscle strength.
30+ Years of Orthopedic Expertise
Developed by an experienced European implant manufacturer
480 Implant Configurations
Wide range of sizes for precise anatomical fit
131.7° Range of Motion
Supports natural thumb mobility
Designed for Revision Trapezium replacement system preserves revision options.
Proven Long-Term Results
Over 12 years of follow-up for the single mobility version and 4+ years for dual mobility.
Highly Crosslinked Polyethylene
Manufactured from one of the highest-performing UHMWPE materials available.
Composite coating
Patented coating achieving up to 30% greater bone ingrowth compared to conventional coatings.
Proudly designed and manufactured in the Czech Republic.
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Contact us
Reach our team to discuss ELiS, ask questions, or explore partnership opportunities
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Online workshop
Join an online workshop to learn about the ELiS system, surgical concept, and clinical results
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Surgical training
Participate in hands-on training with experienced surgens and gain practical experience with the ELiS technique
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Start using ELiS
Introduce ELiS into your portfolio and offer patients a modern solution for CMC joint replacement
32 years
on the market
1.8M+
satisfied customers
90+
employees
discover more
Clinical Studies
Early Clinical Outcomes of ELiS Thumb CMC Arthroplasty
Brančík et al., 2024
Mid-Term Outcomes of Total Thumb CMC Arthroplasty
Jurča et al., 2025
Five-Year Prospective Outcomes of ELiS TMC Arthroplasty
Cant et al., 2025 – Conference Study
Clinical Experience with Beznoska Thumb Arthroplasty
Jurča et al., 2016
solution for everybody
Who is ELiS for
Hospitals
Integrate ELiS into your surgical portfolio and offer patients an advanced solution for CMC joint replacement. Designed for reliable outcomes and efficient surgical workflow.
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Private clinic
Offer patients an advanced treatment option for thumb osteoarthritis. ELiS enables precise implantation and supports fast recovery and high patient satisfaction.
Discover more
Hand Surgeons
Expand your surgical options with a proven CMC arthroplasty system. ELiS provides a wide range of implant sizes and a reproducible surgical technique.
Discover more
Distributors
Partner with an experienced European manufacturer and introduce ELiS to your market. We provide training, marketing support, and clinical education.
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be part of worldwide solution
Over 4,000 ELiS implants delivered worldwide
what are our clients says
Testimonials
Dr Alistair Phillips
Consultant Orthopaedic Hand Surgeon, UK
UK“The ELiS implant is a fantastic option for CMC arthritis and I wholeheartedly endorse both the implant itself and the family run manufacturer - Beznoska.
The coating of the implants in particular allows for instant fixation and early active movements, reducing rehab time for my patients and increasing my confidence in their outcomes.“
Dr Tryno Muñoz
Hospital de Blanes/Institut de la Ma, Spain
Spain“It’s the best TMC prosthesis on the market — it gives me every option I need intraoperatively and adapts perfectly to different patient anatomies. Thanks to its stability and precise instrumentation, surgeries are efficient and predictable. Patients also experience very fast recovery, which makes ELiS my go-to solution for basal thumb arthritis.”
Dr. Joaquim Rodriguez Miralles
clínica el pilar, Spain
Spain“The best instrument set I’ve ever worked with, precise, intuitive and reliable.”
“The prosthesis adapts perfectly to each patient, offering excellent stability and consistently fast recovery.”
Lubomír Trtík MD
Orthopedic surgeon, hospital Havlíčkův Brod, Czech Republic
Czechia”The ELiS total endoprosthesis is my first choice for treating basal thumb arthritis thanks to its modular design and broad range of cup options, including single or dual mobility and spherical or conical shapes. Its surface coatings support rapid osseointegration, and the revision components remain fully compatible with the primary implant. I confidently recommend ELiS as a reliable and versatile solution.”
what’s new
Magazine back in motion
Patient
Why Your Thumb Hurts – and What You Can Do About It
Experiencing similar symptoms? Don’t wait. Talk to your doctor about your thumb pain and possible solutions like ELiS.
Read moreSurgeon
Engineered for the OR – Manufacturing, Sterilization, and Clinical Utility
Schedule a hands-on workshop or request an ELiS trial set to experience the system first-hand.
Read moreIntroduction
ELiS Dual Mobility: 3-Year Clinical Results Confirm Outstanding Performance
Revolutionizing Thumb Joint Replacement with Long-Term Data
Read morefeel free to touch us
Contact us
We are Based in Czechia
We are part of Beznoska s. r. o.
Ing. Eliška Milatová
+420 312 811 221 | export@beznoska.cz