3D Kinematic Assessment of the Human Knee During Physical and Daily Life Activities

Study Overview
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Brief Summary
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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

Official Title
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(Étude de la cinématique Tridimensionnelle du Genou Humain Lors de Gestes Sportifs et de la Vie Courante)

Conditions
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3D Knee Kinematics

Intervention / Treatment
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* Device: 3D knee kinematic assessment under local anesthesia


Participation Criteria
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Eligibility Criteria
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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
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: 3D knee kinematic assessment<br>3D knee kinematic assessment under local anesthesia | Device: 3D knee kinematic assessment under local anesthesia<br>* 3D knee kinematic assessment under local anesthesia<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| 3D knee kinematics | The investigators will investigate if 3D knee kinematics can be precisely and safely measured under local anesthesia during various motor tasks (walking, squatting, pivoting, jumping): kinematic data will be analyzed in search of signs of artefact movement and kinematic aberrations, which would indicate problems with the measurement system. | On the day of the surgery, before knee arthroscopy | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Correlation of kinematic data with clinical laxity tests | With the kinematic measurement device attached to the bones of the lower limbs, various knee laxity tests will be performed by a physician while the kinematics of the knee are recorded; correlations will be sought between the subjective evaluation of the physician and the kinematic data. | On the day of surgery, before knee arthroscopy |