This unsolicited device case from united states was received on (b)(6) 2015 from a healthcare professional (other).This case was cross with cases: (b)(4) (cluster cases).This case concerns a (b)(6) female pt who developed red knee, was unable to bear weight on the knee, had large knee, hot knee and knee was aspirated while receiving treatment with synvisc.The pt had received several series of synvisc in the past.No medical history, concomitant medication or concurrent condition was reported.On an unk date, the pt initiated treatment with intra-articular synvisc injection at a dose of 2 ml (frequency and expiration date: not provided; batch/lot number 4rsd004a) for osteoarthritis.On an unk date, following the third injection, the pt experienced "large red hot knee".It was reported that the pt was unable to bear weight on the knee.On unk dates, the knee was aspirated and a cortisone injection was given.It was reported that the lab cultures were negative.Corrective treatment: cortisone for all the events.Outcome: unk for all the events.A pharmaceutical complaint (ptc) was initiated and ptc results were pending.Seriousness criteria: required intervention for all the events.Pharmacovigilance comment: sanofi company comment dated (b)(6) 2015: this case concerns a (b)(6) female pt who was unable to bear weight on the knee after receiving synvisc injection for osteoarthritis.Since the pt experienced the event after receiving the injection therefore temporal relationship between synvisc and the event cannot be excluded completely and causal role of synvisc in occurrence of the event cannot be denied completely.However, due to lack of the complete clinical presentation, the patient's underlying concurrent medical conditions and concomitant medications the complete medical assessment is difficult.
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