(b)(4).Customer has indicated that the product will not be returned to zimmer biomet for investigation, as the device location is unknown.The investigation is in process.Once the investigation has been completed, a follow-up mdr will be submitted.Additional associated products: 42502206402 persona femur trabecular metal (cr) narrow porous lot# 64278729.42522100810 persona articular surface medial congruent (mc) right 10 mm lot# 64375813.
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It was reported a patient had an initial right total knee arthroplasty followed by a manipulation under anesthesia one month later.Subsequently, patient began to have pain and swelling one month post mua, and an i&d was performed on an infected extra-articular hematoma.A subsequent i&d due to ongoing extra-articular infection was performed another month after the previous i&.The two i&ds failed to resolve the infection and a two stage revision was performed about one month post procedure.During the revision, medially encountered purulence with positive cultures of staphylococcus aureus and erosion was noted through the external fascia.All implants, except the patella, were removed and a new femoral component was implanted with a spacer.Eleven moths after placing the spacer a stage ii revision was completed without complication and a new revision system was implanted.
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