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. 2017 Nov 20;12(11):e0187227. doi: 10.1371/journal.pone.0187227

Fig 2. Kaplan-Meier curves of time without TKR for HA and N-HA groups.

Fig 2

HA group: patients who received at least one IA HA injection during their follow-up period, N-HA group: patients who received only CS as IA injections, TKR: total knee replacement, IA: intra-articular, HA: hyaluronic acid, CS: corticosteroids.