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 anterior cruciate ligament (ACL) is one of the most discussed and researched ligaments within the realm of sports medicine, owing to its critical role in knee stability and the frequency with which it is injured.

    Located in the center of the knee joint, the ACL traverses from the femur (thighbone) to the tibia (shinbone) and plays a crucial role in maintaining the rotational stability of the knee and preventing the tibia from sliding out in front of the femur.

    Anatomy and Function

    The knee joint, being a hinge joint, primarily facilitates flexion and extension. However, it also supports a small degree of rotation and translation, movements that are kept in check by the ligaments. The ACL is one of the four main ligaments in the knee, the others being the posterior cruciate ligament (PCL), medial collateral ligament (MCL), and lateral collateral ligament (LCL).

    While all these ligaments contribute to the knee's overall stability, the ACL is particularly vital for preventing excessive forward movement of the tibia (anterior translation) and for ensuring controlled rotational movements. During various activities, such as pivoting or sudden changes in direction, the ACL resists abnormal movement, ensuring the knee functions smoothly and efficiently.

    Injury Mechanism

    ACL injuries are unfortunately common, especially among athletes in sports that involve sudden stops, jumps, or changes in direction — like basketball, soccer, and skiing. An ACL tear can result from:

    • Direct contact, like a football tackle.
    • Non-contact mechanisms, such as landing awkwardly from a jump or rapidly changing direction.

    Upon injury, individuals might hear a "pop" followed by immediate swelling and instability of the knee. The severity of ACL injuries can range from minor tears to complete ruptures.

    Diagnosis and Treatment

    If an ACL injury is suspected, a thorough clinical evaluation, often supplemented with imaging studies like MRI, is essential. In addition to MRI, tools like an arthrometer and specifically the DyneeLax® or GNRB can be utilized. The DyneeLax® is a specialized device designed to quantitatively measure the anterior tibial translation relative to the femur, offering detailed insights into the laxity of the knee and the extent of ligament injury. Moreover, are recent study has proven that GNRB & Dyneelax arthrometers are more efficient at diagnosing partial ruptures of the ACL compared to the MRI. The MRI however still helps in assessing the degree of injury and any associated injuries to other knee structures.

    Treatment for ACL injuries can be non-surgical or surgical, depending on the severity of the injury and the patient's activity level and goals. Conservative treatment, consisting of physical therapy and bracing, may suffice for those leading a less active lifestyle or with partial tears. However, for active individuals or athletes wishing to return to high-demand sports, an ACL reconstruction surgery, where the ligament is replaced with a graft, might be recommended.


    The anterior cruciate ligament (ACL), with its pivotal role in ensuring knee stability, is fundamental for athletes and non-athletes alike. While its injury is commonplace, advances in orthopedic surgery and rehabilitation allow many individuals to return to their pre-injury activity levels, provided they adhere to recommended treatment and rehabilitation protocols. The emphasis remains on injury prevention through appropriate training techniques and biomechanics.