Are there distinctive inflammatory flares after hylan g-f 20 intraarticular injections?

Abstract

The majority of the occasional dramatic episodes of inflammation after hylan G-F 20 injection do not seem to be related to crystals. No detrimental lasting results were noted. The absence of post-hylan flares following the first intraarticular injection in this small series suggests that sensitization to or accumulation of hylan G-F 20 or its breakdown products may play an etiologic role in these flares.