Four things to know:
1. Researchers analyzed patients who had an anterior cervical discectomy and fusion with patients who had a cervical disc replacement with follow-up data after at least two and up to seven years in the wake of the procedures.
2. A total of 228 patients were examined; 111 had cervical disc replacement and 117 had spinal fusion.
3. The results found the rate of radiographic adjacent-level disease was higher in spinal fusion patients. Rates were lower in artificial disc patients in the superior and inferior adjacent levels.
4. The study concluded: “The difference in radiographic adjacent-level disease is related to the preservation of motion at the index level and resultant preservation of kinematics and forces across the adjacent disc space.”
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