Problem : Precise and personalized 3D knee kinematic assessment during physical and daily life activities is a challenge; therefore, it was never performed on an important number of individuals. However, a better understanding of 3D knee kinematics during such activities would allow a better understanding of this often injured joint.

Hypothesis: A new system using personalized 3D bone imaging and a percutaneous bone fixation device that can be used under local anesthesiaallows for precise and reproducible assessment of 3D knee kinematics during physical and daily life activities.

Objectives :

• To study human knee 3D kinematics during dynamic activities using a novel minimally invasive measuring system
• Investigate the correlations between standard clinical knee laxity tests and measured 3D knee kinematics during dynamic activities

Inclusion Criteria:

• Patients awaiting knee arthroscopy under local anesthesia for a medial meniscal tear

Exclusion Criteria:

• Active infection
• Severe swelling of the knee
• Knee flexion contracture
• Knee flexion less than 120 degrees
• Gross limping
• Inability to perform the various motor tasks required by the study protocol