Fig. 8From: Randomised, double-blind comparison of a fixed co-formulation of intra-articular polynucleotides and hyaluronic acid versus hyaluronic acid alone in the treatment of knee osteoarthritis: two-year follow-upMean Knee Society Score (KSS) pain scores at baseline and [T3] (2 months) in patients of the fixed combination (PNHA) and hyaluronic acid (HA) treatment groups according to baseline severity (Kellgren–Lawrence grade) of knee joint diseaseBack to article page