Predictors of response to viscosupplementation in patients with hip osteoarthritis: Results of a prospective, observational, multicentre, open-label, pilot study

To identify predictive factors of response to viscosupplementation (VS) in patients with hip osteoarthritis (HOA). Methods: Prospective, multicentre, open-label trial, achieved in daily practice conditions. Patients with HOA were treated with a single intra-articular injection of a cross-linked hyaluronic acid combined with mannitol (HAnox-M-XL), using imaging guidance.