Studies Genourob's Knee laxity arthrometers Anterior cruciate ligament (ACL) injury/tear ACL: Anterior cruciate ligament
  • Torn /injured ACL treatment
  • Torn ACL recovery time
  • ACL Reconstruction Surgery Techniques
  • Why buy a KT 1000 arthrometer when you can get a Dyneelax or GNRB? Did I tear my ACL? TOP 6 ACL diagnostic tests KT-1000 / KT-2000 / GNRB comparison Sports related to ACL Injuries 11 ACL fast facts Arthrometers: Enhance knee injury treatment Knee Stability/Instability Diagnostic Device Knee physical exams
  • Pivot Shift Test - Knee Instability Evaluation
  • Lachman Test - ACL assessment
  • Anterior Drawer Test - ACL assessment
  • ACL Rehab: How are arthrometers crucial to recover from ACL Surgery? New arthrometer NEW GNRB / ROTAM Research Studies GNRB Knee Arthrometer: More than just objective results on the ACL... The Future of Treating ACL Tears: Arthrometers Where can I order a KT1000 knee ligament arthrometer? KT-1000 vs. GNRB video: Testing the ACL with both arthrometers NEW GNRB STUDY KT1000 Arthrometer : Test Knee Laxity ESSKA BEST E-POSTER AWARD - GNRB ARTHROMETER Back pain and its associated problems Knee Laxity Arthrometer GNRB involved in more than 30 scientific studies What is Knee Ligamentous Laxity? Back Pain Rehabilitation - Spineo Patient Feedback New Funding from the European Union for the DYNEELAX Project AS MONACO football club has a DYNEELAX ! Memphis Depay, from FC Barcelona, being tested on our Arthrometer! What are the benefits of using knee laxity arthrometers? What is Dyneelax? Knee Ligament Analysis: ACL, PCL, LCL, MCL Assessment Device What is Knee Laxity? Study - Arthrometers better than MRI when diagnosing partial ACL tears Mastering Knee Examination: The Role of Arthrometers in Diagnosing Ligament Injuries Demystifying Anterior Cruciate Ligament (ACL) Injuries: Causes, Symptoms, and Treatment Revolutionizing Knee Assessment: The Dyneelax Knee Laxity Arthrometer Unraveling Knee Laxity: The Crucial Role of Arthrometers in Diagnosis and Treatment Mastering the Lachman Test: Detecting ACL Tears Unmasking Partial ACL Tears: The Edge of Dyneelax & GNRB Arthrometers Over MRI The Anterior Cruciate Ligament (ACL): A Brief Overview New Website ! Visit Arthrometer.com
    Now present in more than 30 countries...
  • Chirurgie orthopedique et traumatologie du sport in Paris - France
  • Dr Ramon Cugat in Barcelona - Spain
  • Pr. Yves Tucoulou in Lanzhou - China
  • Pr. Laimonas Siupsinskas in Kaunas - Lithuania
  • Gwangju Veterans Hospital in Gwangju - South Korea
  • Sydney Orthopedic Research Institute - Australia
  • DYNEELAX is present at the AS MONACO football club!
  • Visit the SPOMED clinic in the Netherlands to perform a functional analysis of the knee
  • Genourob Certifications How we started... Why do we develop knee laxity arthrometers to analyse ACL tears at Genourob?
    What is Laximetry? Knee laxity tests - Genourob's LDA® Method
  • Lachman test (automated)
  • Posterior drawer test (automated)
  • Anterior drawer / Tibial rotation test (automated)
  • Tibial rotation instability test (automated)
  • Anterior Translation + Internal/ External Rotation
  • LDA Method Scientific Studies Arthrometers adapted to your speciality
  • Orthopedics
  • Sport
  • Radiology
  • Functional Rehabilitation
    SPINEO - Rehabilitation of the spine (Patented device) What is SPINEO? SPINEO Detailed Description Why use SPINEO during rehabilitation ? How does this spine rehabilitation device work?
  • LDA® Couch
  • LDA® Trolley
  • ACL injury/tear assessment
  • ACL test - Medial rotation
  • PCL injury/tear assessment
  • ACL test - Adapted to x-ray technology
  • Scientific Studies Genourob's Medical Products CHOOSE YOUR DYNEELAX
    International Sales
  • Export Sales Manager
  • Distributors in Europe
  • Distributors in Asia
  • Distributors in the Middle-East
  • Distributors in Oceania
  • Distributors in Latin America
    Welcome to Genourob Support GNRB FAQ ROTAM FAQ


    +33 2 43 90 43 01


    The KT1000 is a medical tool that was developed by the company MEDMETRIC. The purpose of this instrument is to objectively assess knee laxity by measuring the displacement of the tibia relative to the femur alike the GNRB arthrometer. Results provided from the KT1000 enable medical practitioners to diagnose the state of the anterior cruciate ligament (ACL).

    Where can I order a new KT1000 or a KT2000?

    Nowadays, it is not possible to order a new KT1000 or KT2000 arthrometer as the company MEDMETRIC recently terminated production of these instruments. The device having been developed since the 1980's, the company decided to cess manufacturing it in 2015.

    Fortunately, there are alternative solutions:

    • 1) Order a second hand KT1000 arthrometer
    • 2) Buy a newer & more advanced arthrometer: Genourob's GNRB & DYNEELAX knee laxity testing devices

    By choosing 1), the price of a second hand KT1000 arthrometer is around 7,000$. This solution might be appealing at first but does not come without a risk, as the device that will be acquired might be faulty since it was manufactured some time ago. Consequently, there is no warranty when buying such a device and it might be delivering its final tests. In addition, it can be difficult finding someone selling it.

    By opting for 2) however, you will obtain a newer tool offering more advanced features such as higher accuracy & reproducibility which are described below or you can click here. Also, it comes with a warranty that lasts 2 years.

    Meet the GNRB & Dyneelax arthrometers, the computerized successors of the KT1000 / KT2000

    Dyneelax Knee Laxity Arthrometer

    Dyneelax Knee Laxity Arthrometer

    The GNRB or Dyneelax are medical tools that were developed since 2007 by the company GENOUROB. At first, the devices were designed to only apply anterior tibial translation for diagnosing the ACL. However, these tools can also provide assessments on the PCL or medial rotation instability using additional options.

    What makes the GNRB & Dyneelax the leading arthrometers on the market is mainly that fact that these are completely automated. This attribute indeed facilitates the user in performing objective tests that are highly accurate & reproducible as all forces are manually chosen via a computer. For example, the tibial displacements can be calculated from 0 to 150N or from 0 to 200N.

    Dyneelax vs KT1000/KT2000

    GNRB Test results

    GNRB Test results

    Results are then given under the form of compliance curves (=opposite of stiffness curves), which help the medical practitioner in diagnosing and treating injuries related to the knee ligaments. Further to this, automation also permits the analysis of the slope of the compliance curves (=opposite of stiffness curves) that is an innovative diagnosis technique regarding knee stability (see GNRB scientific study) in addition to the side-to-side displacement differential diagnostic technique.

    If you are curious to learn more on the GNRB, click here.

    Comparison criteria’s

    KT-1000 KT-2000 GNRB DYNEELAX
    Movement Translation Translation


    Rotation + Translation

    Type of testing Static: Displacement data at 134 N Static: Displacement data at 134 N

    Dynamic: Force/Displacement curves (1 to 200N) 

    Dynamic: Force/Displacement curves (1 to 200N) 

    Torque / Rotation curves (1 to 8N)

    Tightening Handmade: User dependent Handmade: User dependent Sensor: Data automatically collected Sensor: Data automatically collected
    Device positioning No data No data Ruler: Data on foot positioning collected Ruler: Data on foot positioning collected
    Force applied Handmade: User dependent Handmade: User dependent LDA software: Various controlled tibial forces can be chosen LDA software: Various controlled tibial forces  & torques can be chosen
    Displacement Sound: Device beeps if displacement >3mm Sound: Device beeps if displacement >3mm Sensor: Data automatically collected Sensor: Data automatically collected
    Results Handmade: Hand written  Data saved on PC  LDA software: Data automatically saved LDA software: Data automatically saved
    Test timing (min) 2:15 2:03 2:58 10:00
    Test Results Anterior Knee Stability Anterior Knee stability Anterior Knee Stability

    Full knee analysisAnterior Knee Stability

    Medial / Lateral Knee Stability

    Use Pre-surgery Pre-surgery Pre-Surgery and Post-surgery

    Pre-Surgery and Post-surgery