It was reported that on (b)(6) 2014, the patient underwent surgery at levels c6-c7; c4-c5 with implantation of artificial cervical disc at level c6-c7 due to pre-op diagnosis: neck pain, disc herniation.On (b)(6) 2014, the patient underwent anterior cervical disc fusion(acdf) surgery at levels c4-c5,c5-c6,c6-c7 with implantation of another artificial cervical disc.On (b)(6) 2017, the patient underwent a revision surgery in which both the discs implanted were removed.The surgeon stated that the patient had a brief period of neck pain relief but that the neck pain has continued and the patient was also experiencing occipital headaches.Discs were being removed due to persistent neck pain.Removal of both discs were uncomplicated but surgeon noted some heterotopic ossification (grade 1) posterolateral to artificial disc replacement device."ho" was removed with drill.The artificial disc replacement device plus peri-prosthetic tissue was sent for analysis per fda requirements.Revision treatment included three level using peek plus anterior plate.Tissue ingrowth was observed between superior and inferior device components.Metal debris was visible in tissue lateral to lp device.The current status of patient is unknown but patient did recover from revision surgery.
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