The KneeKG System

  • Bujar Shabani
  • Dafina Bytyqi
  • Laurence Cheze
  • Philippe Neyret
  • Sébastien LustigEmail author


Accurately quantifying knee joint motion is not simple. Skin movement over the medial and lateral femoral condyles is the greatest obstacle to obtaining accurate movement data noninvasively. The KneeKG system was developed with the objective of providing high-reliability movement analysis. The KneeKG system noninvasively quantifies knee abduction/adduction, axial rotation, and relative translation of the tibia and femur. The average accuracy of the acquisition is 0.4° for abduction/adduction, 2.3° for axial rotation, 2.4 mm for anteroposterior translation, and 1.1 mm for axial translation. This clinical tool enables an accurate and objective assessment of the tri-planar function of the knee joint. The measured biomechanical parameters are sensitive to changes in gait due to knee osteoarthritis and ACL deficiency. This system has the potential to improve understanding of the biomechanical consequences of trauma or degenerative changes of the knee as well as more accurately quantify rotational laxity as detected by a positive pivot-shift test.


Anterior Cruciate Ligament Anterior Cruciate Ligament Reconstruction Anterior Cruciate Ligament Injury Gait Cycle Anterior Cruciate Ligament Graft 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer International Publishing Switzerland 2017

Authors and Affiliations

  • Bujar Shabani
    • 1
  • Dafina Bytyqi
    • 1
  • Laurence Cheze
    • 2
  • Philippe Neyret
    • 1
  • Sébastien Lustig
    • 1
    Email author
  1. 1.Department of OrthopaedicAlbert Trillat Center, Lyon North University HospitalLyonFrance
  2. 2.Laboratoire de Biomécanique et Mécanique des Chocs Université Lyon 1 - IFSTTAR, LBMC UMR_T9406PittsburghUSA

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