Evaluation of a Distraction-rotation Knee Unloader Brace in Patients With Medial Knee Osteoarthritis.

Evaluation of a Distraction-rotation Knee Unloader Brace in Patients With Medial Knee Osteoarthritis.

The aim of this study is to confirm the biomechanical effects and evaluate functional benefits of a new knee brace combining valgus inducing effect on medial compartment and leg external rotation during the stance phase in patients with symptomatic medial knee osteoarthritis.

Inclusion Criteria:

• Patient understanding simple order and able to give written consent.
• Man or woman with age between 40 et 75 years
• Unilateral medial symptomatic knee osteoarthritis, defined using the American College of Rheumatology classification
• Radiologic grade II, III ou IV (Kellgren et Lawrence (KL) classification)
• Medial knee compartment (Medial K&L g rade higher than lateral K&L grade
• Knee pain > 40/100 on visual analog scale and <30/100 for the other
• No change in medical treatment for at least 3 months.
• Latest radiographic image < 12 months before inclusion

Exclusion Criteria:

• Patient without healthcare insurance.
• Inflammatory knee arthritis,
• Indication of knee surgery
• Pregnancy, breastfeeding
• Associate neurologic or orthopaedic affection that interferes with gait analysis
• Rapidly destructive arthritis.
• Alzheimer's disease, Parkinson's disease, motor neuronal disorders
• Patient under guardianship or tutelage