Product complaint # (b)(4).If information is obtained that was not available for the initial medwatch, a follow-up medwatch will be filed as appropriate.Investigation summary: no device associated with this report was received for examination.A worldwide lot specific complaint database search, or device history record (dhr) review was not possible because the required lot code(s) was not provided.The information received will be retained for potential series investigations if triggered by trend analysis, post market surveillance, or other events within the quality system.Corrective action was not indicated.(b)(4).
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"literature article entitled, ¿the corail stem as a reverse hybrid ¿ survivorship and x-ray analysis at 10 years¿ by helge wangen, et al, published by hip international (2017), doi: 10.5301/hipint.5000477, was reviewed.The authors report their experience of reverse hybrid tha, using the elite plus polyethylene cemented cup together with the corail fully hydroxyapatite-coated uncemented stem and a 28-mm alumina ceramic head implanted between january 2000 to december 2003.Implanted products: corail stem, charnley elite plus cup cemented with competitor cement, and a 28-mm alumina ceramic head by ceramtech.Results: 1 two-stage revision for early postoperative infection.2 early infections treated with surgical debridement.2 infections treated with debridement and cup revision.1 heterotopic ossification treated with excision of the heterotopic bone and component retention.1 periprosthetic fracture treated with stem revision.1 cup scheduled for revision due to aseptic loosening.There is insufficient information within the text of the article to attribute the loosening to the cup that cemented with competitor cement.1 cup loosening due to infection not revised because of patient refusal.1 stem mispositioned into varus due to undersized stem.2 stems identified as too small- not revised.There were noted cases of acetabular and femoral radiolucent lines that required no intervention and were not progressive.Captured in this complaint: elite plus cup- implant loosening due to infection; femoral head- no reported product problem; corail stem- mispositioned and implant fit: too small.Patient harms: infection, extraskeletal ossification, fracture post-op, surgical intervention, and medical device removal.".
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