Daily Activity and Gait Analysis After Viscosupplement Injection Among Hip Osteoarthritis Patients

Inclusion Criteria: * From 45 years old to 65 years old * Clinically symptomatic moderate or severe hip osteoarthritis (Tönnis Grade II to III) * Capacity to keep steady upright position and walking during 15 minutes * Body mass index \< 40kg/m2 Exclusion Criteria: * Bilateral hip osteoarthritis * No broken hip or leg during the last 12 months * Bone necrosis * Rheumatoid arthritis, articular chondrocalcinosis, metabolic bone disease, psoriasis, gout, active infection * Per os corticosteroid treatment * Corticosteroid injection \< 3 months * Viscosupplement injection \< 6 months * Hypersensitivity to hyaluronic acid products * Planed surgery during study duration * Physical or mental disability to fill in questionnaires and/or to participate to follow-up