Studies ACL: Anterior cruciate ligament
  • Anterior cruciate ligament (ACL) injury/tear
  • ACL reconstruction surgery techniques
  • Torn /injured ACL treatment
  • Torn ACL recovery time
  • Why buy a KT 1000 arthrometer when you can get a GNRB? Did I tear my ACL? TOP 5 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 GENOUROB is at REEDUCA 2019, Paris, France Knee Laxity Arthrometer GNRB involved in more than 30 scientific studies What is Knee Ligamentous Laxity? ACTIBACK - PATIENT FEEDBACK Video This project has received funding from European Union's Horizon 2020 research and innovation programme under grant agreement N°876691
    Now present in more than 30 countries...
  • Chirurgie orthopedique et traumatologie du sport in Paris - France
  • Juventus de Turin
  • 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
  • Genourob Certifications How we started...
    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)
  • LDA Method Scientific Studies Arthrometers adapted to your speciality
  • Orthopedics
  • Sport
  • Radiology
  • Functional Rehabilitation
    ACTIBACK - Rehabilitation of the spine (Patented device) What is ACTIBACK? ACTIBACK Detailed Description Why use ACTIBACK during rehabilitation ? How does this spine rehabilitation device work?
    Genourob's Knee laxity arthrometers Accessories
  • LDA® Couch
  • LDA® Trolley
  • LDA® Biofeedback
  • ACL injury/tear assessment
  • ACL test - Medial rotation
  • PCL injury/tear assessment
  • ACL test - Adapted to x-ray technology
  • Choose your ROTAM
  • Knee ligamentous laxity assessment/test
  • Scientific Studies CHOOSE YOUR ACTIBACK Genourob's Medical Products CHOOSE YOUR DYNEELAX
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    The DYNEELAX arthrometer is a medical device developed by the company Genourob since 2020. It is currently the most accurate knee arthrometer regarding knee ligament assessment as it is the only one that is completely automated & computerised.

    DYNEELAX Knee Arthrometer - Knee Laxity Arthrometer - Translation + Rotation

    DYNEELAX Knee arthrometer

    DYNEELAX Knee arthrometer

    Dyneelax represents a new, high performances medical device for ligament tears analysis of knee joint laxity.
    The main aim is to develop so called LigAM, a new medical device for the computer-assisted assessment of knee laxity, with special focus on joint stability provided by the anterior cruciate ligament (ACL) status. LigAM will be able to generate diagnostic reports on the status of the ACL (complete or different types of partial tears) and associated soft tissue

    structures (menisci) based upon fully automated measurement procedures and a complete analysis of static knee joint laxity, taking into account individual patient characteristics.
    The device will be composed of an automated arthrometer (LigAM apparatus), and a unique data analysis software (LigAM software).

    New product, new life…

    LigAM will be a new product: it will stand out from all arthrometers, existing or in development, and will feature new functionalities that require re-defining arthrometer configuration and data analysis of knee laxity:
    automation of knee laxity evaluations in both the sagittal and the transverse plane,
    complex knee movement simulations to obtain tibial pivot shit with recorded conditions of tightening force and leg positioning recorded that ensure unique test reproducibility, unique patient benchmarking and personalized diagnostic by advanced data analysis software lying on an extensive and upgradeable database of knee laxity measurements.

    The overall development of LigAM is definitely incremental, as it will follow standards of the medical devices industry starting

    from new device design, prototyping, tests and validation in clinical and cadaveric studies with applications of specific norms all along product development.

    LigAM will clearly stand out from current devices thanks to very unique functionalities and features:
    integration of automated knee laxity evaluations in both the sagittal (anterior tibial displacement) and the transverse (internal and external tibial rotation) plane through the application of appropriate, calibrated forces/torques up to a precise, predefined level;
    complex knee movement simulations to obtain tibial pivot shit with recorded conditions of tightening force and leg positioning recorded that ensure unique test reproducibility;

    highly relevant outcomes (better accuracy, more appropriate treatment) for optimal patient monitoring after surgical or conservative treatment of knee soft-tissue injuries,
    advanced analysis software that allows for diagnosis and unique patient benchmarking based on individual laxity profile, taking into account all laxity results, patient characteristics and pathological status;
    suitable for both research and clinical follow-up of patients due to its high accuracy and reliability;
    time-efficient multiplanar testing with the use of a single device.

    Compared to current products, commercialized or in development, LigAM will be the sole product to allow for an integrative analysis of the knee joint laxity, a feature that is critical for the precise diagnosis and patient follow-up. LigAM will be positioned on several market segments of knee orthopaedic market:
    knee surgery: complete check up of knee ligament that permits orthopedic surgeon to adapt the surgery to the lesion observed,

    patient rehabilitation: high quality patient follow-up and adaptation of exercises in relation with the results obtained during the rehabilitation,
    sport medicine: tool for early stage diagnosis of ligament tears allowing for a better healing through a personalized functional treatment without surgery.


    Test the ACL + Knee Rotation Instabilities Test the ACL + PCL + Knee Rotation Instabilities

    First Automated Tibial Translation + Rotation arthrometer in the world | ACL / PCL test | DYNEELAX Arthrometer

    Currently, the DYNEELAX arthrometer is the most precise, reproducible and user friendly medical device in the field of anterior cruciate ligament analysis and knee rotation instability assessment (see scientific studies). Its technology is loosely based on the anterior drawer test but more specifically on the lachman test with innovation present at its core as it uses the LDA® Method to analyze the ACL.

    Unlike other arthrometers present on the market, the DYNEELAX runs automated dynamic tests collecting precise data on the knee of the patient. Static tests (single pressure force applied on the knee) give indeed less information on knee stability than automated dynamic tests.

    During the years following the creation of the GNRB arthrometer, our clients always requested for a single device that could run various types of assessments on the knee. Options were hence created but added seperately on the GNRB arthrometer and performing ACL + PCL + Rotation tests was always a challenge as accuracy needed to be kept.

    Today however, it is now possible to run all type of assessments on the knee, more precisely, anterior/posterior translation + Internal/external rotation with one single device, the DYNEELAX.

    GNRB arthrometers detailed comparison:

    • ACL Analysis
    • Internal Knee Rotation
    • External Knee Rotation


    • Automated Lachman Test
    • Internal Tibial Rotation
    • External Tibial Rotation
    • Automated Posterior Drawer Test
    • Automated Anterior Drawer Test 
    • Internal Tibial Rotation
    • External Tibial Rotation


    • Knee Displacement Differentials
    • ACL Force/ Displacement Curve slopes
    • Internal and External Torque/Degree of rotation Curve Slopes
    • Knee Displacement Differentials
    • ACL and PCL Force/ Displacement Curve slopes
    • nternal and External Torque/Degree of rotation Curve Slopes


    • LDA software
    • PCL module added
    • PCL LDA Software