(b)(4).D10 - associated medical devices: m2a-magnum recap cup 56odx50id; item# 157856; lot# 1488514.M2a-magnum mod hd sz 50mm; item# 157450; lot# 1505536.Magnum tpr adpr ti 42-50/+8mm; item# 130832; lot# 1338003.G2 - foreign: italy.Multiple mdr reports were filed for this event, please see associated reports: 3002806535-2023-00137.3002806535-2024-00077.The device will not be returned for analysis; however, an investigation of the reported event is in progress.Once the investigation is completed, a supplemental medwatch 3500a will be submitted.
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(b)(4), this follow-up report is being submitted to relay additional information.No product was returned or pictures provided; visual and dimensional evaluations could not be performed.A review of the device manufacturing records confirmed no abnormalities or deviations that could be related to the reported event.Medical records were provided and reviewed by a health care professional.The review identified the following.10 years post initial op; labs (third part medical records.Pdf pg.33).Cobalt 75.77 (normal <1.0).Chromium 37.86 (normal <1.0).10 years and 5 months post initial op; consult (third part medical records.Pdf pg.31).The patient is examined for increase in metal ions in pta mom.Mri of the pelvis is required but left pta revision surgery is recommended.11 years and 1 month post initial op; revision (third part medical records.Pdf pg.1) left revision total arthroplasty metal on metal with necrosis.No revision op report provided.1 days post revision; pathology report (third part medical records.Pdf pg.3).Diagnosis: fragments of detrital synovitis, fragments of medullary bone with extensive intertrabecular infiltration by phagocytosing histiocytes, likely prosthetic material, fragments of detrital synovitis.With the available information, a definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
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