Batch review performed on 22 february 2022.Lot 166559: (b)(4) items manufactured and released on 13-feb-2017.Expiration date: 2022-02-02.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been already sold without any similar reported event since 2018.Preliminary investigation performed by r&d project manager: regarding the ceramic head, nothing to say about the cause of the complaint.With regard to the stem, you can see that the hydroxyapatite has been all reabsorbed over the years, but there are no portions/residues of bone within the microstructure.No conclusion can be drawn.
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