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Original ArticleOpen Access
Stand-Alone Cervical Polyetheretherketone (PEEK) Cage (Cervios) for Single to Two-Level Degenerative Disc Disease
Iampreechakul P 
,
Srisawat C ,
Tirakotai W
,
Srisawat C ,
Tirakotai W Objective: To study clinical and radiographic outcome of patients who underwent the Cervios cage-assisted anterior cervicaldiscectomy and fusion (ACDF) without plate fixation in single to two-level degenerative disc disease (DDD).
Material and Method: Sixty-seven patients suffering from cervical DDD with various symptoms such as radiculopathy,myelopathy, or both were retrospectively evaluated. The cervical DDD was confirmed by plain radiographs and MR imaging.The patients underwent radiographic evaluation to assess cervical lordosis, intervertebral height (IH), fusion, and subsidence.Clinical assessment was graded using a visual analog scale (VAS), Modified JOA (Japanese Orthopedic Association) score,Neck Disability Index (NDI).
Results: There were ninety two ACFD in two levels of operation. Single-level ACDF was performed in 42 patients and twolevelin 25. The outcomes revealed the significant improvement of clinical outcome and restoration of cervical lordosis. Thefusion rate was 97%, whereas subsidence occurred 7.61% but produced no symptom. There was no anterior or posteriormigration of the cage. Complications included transient dysphagia in three patients and superficial wound infection in twopatients.
Conclusion: The present study indicates that one- to two-level stand alone Cervios cage-assisted interbody fusion withoutplate fixation provides improvement of clinical outcomes, restoration of lordosis and high fusion rate. However, subsidenceoccurred in 7.61% but did not cause clinical symptoms and the patients had to use the cervical collar postoperatively.
Keywords: Cervical spine, Cervios, PEEK cage, Stand-alone, ACDF
Material and Method: Sixty-seven patients suffering from cervical DDD with various symptoms such as radiculopathy,myelopathy, or both were retrospectively evaluated. The cervical DDD was confirmed by plain radiographs and MR imaging.The patients underwent radiographic evaluation to assess cervical lordosis, intervertebral height (IH), fusion, and subsidence.Clinical assessment was graded using a visual analog scale (VAS), Modified JOA (Japanese Orthopedic Association) score,Neck Disability Index (NDI).
Results: There were ninety two ACFD in two levels of operation. Single-level ACDF was performed in 42 patients and twolevelin 25. The outcomes revealed the significant improvement of clinical outcome and restoration of cervical lordosis. Thefusion rate was 97%, whereas subsidence occurred 7.61% but produced no symptom. There was no anterior or posteriormigration of the cage. Complications included transient dysphagia in three patients and superficial wound infection in twopatients.
Conclusion: The present study indicates that one- to two-level stand alone Cervios cage-assisted interbody fusion withoutplate fixation provides improvement of clinical outcomes, restoration of lordosis and high fusion rate. However, subsidenceoccurred in 7.61% but did not cause clinical symptoms and the patients had to use the cervical collar postoperatively.
Keywords: Cervical spine, Cervios, PEEK cage, Stand-alone, ACDF
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