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Total Thumb
Endoprosthesis

ELiS implant, a total joint replacement, restores physiological mobility, aliminates pain and allow patients to regain ful functionof the thumb.

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Discover More About Unique ELiS Composite Coating

Physiological mobility, aliminates pain and allow patients

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Restores physiological mobility, aliminates pain

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increasing the comfort of life

Why ELiS


  • Unmatched variety of size and configuration options

    Restores physiological mobility, aliminates pain and allow patients to regain full function and mobility of the thumb while maintanings muscle


  • Patented composite coating enhancing bone ingrowth by 30%

    Restores physiological mobility, aliminates pain and allow patients to regain full function and mobility of the thumb while maintanings muscle


  • Controlled and precise bone preparation using a guidewire technique

    Restores physiological mobility, aliminates pain and allow patients to regain full function and mobility of the thumb while maintanings muscle

ELiS trapezium replacement

Indications for Arthroplasty

0%

of all patients with CMC OA
are indicated for surgical intervention

Painful osteoarthritis

Symptomatic patients with painful osteoarthritis of the first CMC joint who have failed conservative treatment (splints, injections).

Eaton II-III

Patients with Eaton stage II–III, occasionally IV SEE BELLOW

Younger and more active individuals

Patients who seek to preserve thumb mobility and function, especially younger and more active individuals.

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 Replacement

The ELiS implant restores physiological mobility, eliminates pain and discomfort with movement, and allows patients to regain fullfunction and mobility of the thumb while maintaining muscle strength.

  • Experience
    manufacturer with over 30 years in orthopedics
  • Extra sizes
    384 combinations for a perfect fit
  • Range of motion
    up to 131,7 degrees of motion
  • Revision in mind
    trapezium replacement system

Long-term results

Over 12 years of follow-up for single mobility and more than 4 years for the dual mobility version.

Highest crosslinked polyethylene

Scientifically proven to use one of the highest performing UHMWPE materials available.

Composite coating

A patented composite coating enhances bone ingrowth by 30% compared to convencial coatings.

Made in Czech republic

  1. Contact us

    Patients who seek to preserve thumb mobility and function

    See Bellow

  2. Online workshop

    Eaton stage II CMC osteoarthritis is by mild to moderate degenerative

  3. Training for surgeon

    Patients who seek to preserve thumb mobility and function, especially

  4. Buying implants

    Eaton stage II CMC osteoarthritis is by mild to moderate degenerative


  • 32 years

    on the market


  • 1.8M+

    satisfied customers


  • 90+

    employees

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Clinical Studies

ELiS teraphy replacement guide

Physiological mobility, aliminates

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Clinical study of the stability of the joint

Physiological mobility, aliminates

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ELiS clinical study about benefits

Physiological mobility, aliminates

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solution for everybody

ELiS for Who


  • Hospital

    Restores physiological mobility, aliminates pain and allow patients to regain full function and mobility of the thumb while maintanings muscle

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  • Private clinic

    Restores physiological mobility, aliminates pain and allow patients to regain full function and mobility of the thumb while maintanings muscle

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  • Orthopedist

    Restores physiological mobility, aliminates pain and allow patients to regain full function and mobility of the thumb while maintanings muscle

    Discover more

  • Distributor

    Restores physiological mobility, aliminates pain and allow patients to regain full function and mobility of the thumb while maintanings muscle

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    I am Interested

    Physiological mobility, aliminates pain and allow patients

    be part of worldwide solution

    More than 1000+ Deliveries Around the World

    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

    What Is the ELiS Implant Made Of – and Why It Matters

    Do you have a known allergy or concern about implant materials?

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    Patient

    Is ELiS Right for Everyone? Know the Risks and Contraindications

    Not every implant fits every patient. Talk to your doctor to see if ELiS is the safe and suitable option in your case.

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    Patient

    Life After Surgery – What Recovery Looks Like

    Curious what recovery really feels like? Ask your surgeon or physiotherapist about rehabilitation with the ELiS implant.

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    Patient

    How the Surgery Works – and What to Expect

    Still have questions about the procedure? Schedule a consultation with your surgeon and discuss what the surgery could mean for you.

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    Patient

    What Is the ELiS Implant – and How Can It Help You?

    Wondering if ELiS is right for you? Ask your hand specialist about this innovative solution for thumb arthritis.

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    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.

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    Surgeon

    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.

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    Surgeon

    The Coating That Changes Everything – CP Ti / HA Composite Layer

    Want the full white paper on CP Ti / HA coating technology? Contact us for scientific documentation.

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    Surgeon

    Stems That Stay – Osseointegration and Long-Term Stability

    Interested in the push-out test results? Ask for our comparative mechanical data sheet.

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    Surgeon

    Necks and Cups – Tailoring Biomechanics with ELiS

    Use our configuration chart to find the ideal neck–cup match for your patient’s anatomy.

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    Surgeon

    Modularity That Matters – Inside the ELiS Implant System

    Explore the modular options in the ELiS surgical technique guide or request a set demo.

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    Introduction

    Unmatched Range of Motion with ELiS: Because Movement Matters

    Give Patients Their Thumb Back – Fully Functional and Free

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    Introduction

    Smart Surface Engineering: Why ELiS’s Composite Coating Makes a Difference

    Better Fixation Starts at the Surface

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    Introduction

    ELiS Dual Mobility: 3-Year Clinical Results Confirm Outstanding Performance

    Revolutionizing Thumb Joint Replacement with Long-Term Data

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    History

    From Steelworks to Surgery: How a Czech Family Built a Tiny Implant with a Big Global Impact

    It all started in an old metallurgical town just outside Prague.
Not exactly the place you’d expect to find one of the world’s most advanced thumb joint replacements.

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      Write us a Message

      Physiological mobility, aliminates pain and allow patients

      We are Based in Czechia

      We are part of Beznoska s. r. o.

      Ing. Eliška Milatová
      +420 312 811 221   |   export@beznoska.cz