Objective: At present, the use of a cervical cage has become an accepted and widely practiced surgical intervention for the treatment of cervical disc disease (CDD). Polycarbon PEEK cage has been used in the treatment of cervical disc disease as a spacer with good long-term outcomes. Methods: A retrospective study was performed with 16 consecutive patients who underwent single-level anterior cervical discectomy and fusion (ACDF) with a PEEK cage. Lateral plain radiographs were obtained both preoperatively, and at postoperative two years. Patients were followed for a minimum of 24 months. Results: The surgical procedures used were technically successful for all patients and there were no major complications related to anesthesia or the overall surgical procedure. The mean intervertebral disc height (DH) was 4.6±1.4 mm preoperatively, and height was 4.5±1.4 mm at the postoperative 24-month of the follow-up period. The mean angle of lordosis (LA) was 14.5±16.8° preoperatively and 17.5±13.5° at the 24-month follow-up. The mean segment angle (SA) was13.4±15.2º preoperatively, and 12.6±11.9º at the 24 month of the postoperative follow-up period. There was no PEEK cage dislodgment or failure. The clinical symptoms improved in all monitored patients. Conclusion: ACDF is an effective way for the treatment of CDD. Using a cage prevents segmental collapse. This technique can also put AL, SA and SH within normal limits, so postoperative pain reduces and quality of life of the patients improve. Long-term clinical outcome of the stand-alone cages used in the surgical treatment of one cervical disc disease is satisfactory.
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