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 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
    The LDA® Method - Objective knee joint laxity test
  • Lachman test (automated)
  • Anterior drawer / Tibial rotation test (automated)
  • Tibial rotational instability test (automated)
  • Posterior drawer test (automated)
  • Documentations What is Laximetry? Arthrometers adapted to your speciality
  • Orthopedics
  • Sport
  • Functional Rehabilitation
  • Isokinetics
  • Radiology
  • LDA Method Scientific Studies
    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
  • How we started...
    Genourob's knee laxity arthrometers REHAB
  • 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
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    What is the KT 1000 arthrometer?

    KT 1000

    KT 1000

    During the 1970's, USA's orthopaedic community was the first to witness the arrival of the now famous and appreciated KT-1000 arthrometer. This device quickly became the reference in its field of work as it allowed for the first time an objective assessment of the anterior cruciate ligament (ACL) without having to perform an invasive surgery.

    Following the good reception of this medical device and computer technology being more and more present around its wide community of users, the company eventually created a new computerized version of the device: the KT-2000.

    During the decades following their creation, both devices maintained an excellent reputation and were worldwidely sold but like any piece of technology nowadays, time passes and production cessed since 2012.

    Genourob's GNRB: The new KT-1000/KT-2000

    GNRB arthrometer

    GNRB arthrometer

    In 2007, Genourob's founders Dr Henri Robert and Mr Stéphane Nouveau had the idea of creating a new and innovating arthrometer destined to assess knee laxity. Unlike any other medical device already present on the market, the device they had imagined would be completely automated to assure great precision while assessing the ligamentous structures of the knee. Therefore was created the GNRB, the world's first automated arthrometer for anterior cruciate ligament (ACL) assessment.

    The technique used by the GNRB resembles a lot the one applied by the KT-1000/KT-2000 as it automates the drawer test to evaluate knee laxity. Consequently, the GNRB was often compared to the KT-1000 and seen as its follow up but the additional parameters present on the newer GNRB made its assessment technique much more precise and reproducible.

    KT-1000 / GNRB comparison tables chart:

    Comparison criteria’s

    KT-1000 GNRB
    Type of testing Static: Displacement data at 134 N

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

    Tightening Handmade: User dependent Sensor: Data automatically collected
    Device positioning No data Ruler: Data on foot positioning collected
    Force applied Handmade: User dependent LDA software: Various controlled tibial forces can be chosen
    Displacement Sound: Device beeps if displacement >3mm Sensor: Data automatically collected
    Results Handmade: Hand written  LDA software: Data automatically saved
    Test timing (min) 2:15 2:58
    Use Pre-surgery Pre-Surgery and Post-surgery

    The post surgical use is perhaps the biggest asset of the GNRB in this chart as it is possible to assess the ACL graft not long after the surgery. This is indeed a characteristic that was not available with the KT-1000 because the risk of applying high stress on the graft is too high, risk that is not present while running a test with a GNRB as the forces applied on the tibia a controlled.

    Study comparing KT-1000 to the GNRB