Multicenter, independent study of Synolis VA 80/160 over a period of 6 months

Inclusion Criteria:

• Patient over 18 years of age,
• Patient with osteoarthritis of the hip. The diagnosis is based on the following criteria:
• Treated hip pain: Oxford score ≥ 21/60,
• Kellgren-Lawrence positive X-ray stage: II - III (inclusion radiograph dated no more than 6 months before the inclusion visit),
• Symptoms related to osteoarthritis of the hip for at least 2 months,
• Failure of treatments (i.e., inadequate or ineffective response to analgesics and/or NSAIDs or intolerance to NSAIDs or low-grade opioids (leaving an OXFORD score ≥ 21/60),
• Informed consent form signed by the patient,
• The patient has never had a visco supplement injection or corticosteroid injection in the hip to be treated (or more than 6 months old).

Exclusion Criteria:

• Pregnancy,
• Participation in another clinical trial,
• Skin lesion near the injection site,
• Recent or old infection of the affected joint,
• Patient with a programmed arthroplasty,
• Patient with a pathology that makes decision-making impossible,
• The patient must not have undergone non-prosthetic hip-conserving surgery such as osteotomy or arthroscopy less than 12 months old.