Clinical evaluation performed by medical affairs director: partial hip revision surgery (cup, head and liner) occurred 2 years and 4 months after cementless dual mobility total hip arthroplasty.According to the report the reason of pain could be soft tissue impingement but this cannot be confirmed on x-rays images.No other information useful for a clinical investigation has been supplied.Batch review performed on 27 february 2019: lot 160828: (b)(4) items manufactured and released on 25-may-2016.Expiration date: 2021-05-10.No anomalies found related to the problem.To date, all the items of this same lot have been already sold without any similar reported event.
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On january 31, 2019 we were informed about the fact that the surgeon was not pleased with the vertical placement of the cup and consequently would have revised the cup, head and liner on (b)(6) 2019.The revision was performed as planned and was completed successfully.According to the surgeon the pain was caused by the dm cup that was causing impingement of soft tissue.
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