Batch review performed on (b)(6) 2023.Lot 1900247: (b)(4) manufactured and released on 17-apr-2019.Expiration date: 2024-04-07.No anomalies found related to the problem.To date, (b)(4) of the same lot have been sold with no similar reported event during the period of review.Additional device involved: ball heads: cocr 01.25.013 cocr ball head 12/14 ø 28 size l +3.5 (k072857) batch review performed on (b)(6) 2023.Lot 1810702: (b)(4) manufactured and released on 12-mar-2019.Expiration date: 2024-03-02.No anomalies found related to the problem.To date, (b)(4) of the same lot have been sold with no similar reported event during the period of review.Clinical evaluation: revision 2 years and 1 month after the primary tha, due to reduced leg length and risk of luxation.In what looks like a cemented stem, it is extremely rare to have subsidence if the correct technique has been followed.This event caused a significant shortening and the surgeon decided to not remove the stem but to lengthen the stem with a competitor's head.Surely there were medical reason to do so, however, this condition, which is off-label, on such a heavy patient increase the risk of device failure.
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