(b)(4).Concomitant medical products: biomet unknown head catalog#: unknown, lot#: unknown; biomet unknown stem, catalog#: unknown, lot#: unknown.Current information is insufficient to permit a conclusion as to the cause of the event.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.
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It was reported in a journal article titled, "reduction in early dislocation rate with large-diameter femoral heads in primary total hip arthroplasty" that one acetabular component as revised due to impingement.The journal article further reported that the patient's hip had compromised bone stock or unusual anatomy.Attempts to obtain additional information have been made; however, no more is available at this time.Patient outcome is unknown.
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