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Background: This study details analysis of the indications, safety, efficacy and complications of dynamic cervical replacement for replacement of cervical disc in cases cervical disc diseases compared to PEEK cage insertion. Aim of Work: The study aims to compare the outcome of two modalities for the treatment of the cervical disc diseases, the first group is the fixed group (treated by insertion of inter vertebral cages), and the second group is the dynamic one, (treated by insertion of the dynamic cervical implants or DCI). Patient and Methods: A prospective study conducted on 50 patients with single or double level cervical disc diseases like herniated or degenerative lesions treated with fixed and dynamic prosthesis, confirmed by clinical data. Results: Average age of presentation was 44.1 years for both groups, female ratio for the fixed group was 1.5:1, and 1:1.08 for the dynamic group, with age ranged between 35 and 53 years for both studies with an average of 44.1 ±6.345 years. The average duration of symptoms was 51.4 weeks. The average follow-up period in our study was 22.5 months, 21 cases had left sided radiculopathy, 10 cases had right sided affection. The most common presenting symptom after brachialgia (100%) was neck pain, most common sign was sensory changes. Most common operated level was C5-6 for both groups. The average follow-up period in our study was 22.5 months. Conclusion: The DCI implant is the alternative to cage fusion and total disc prosthesis with a wider range of indications. The DCI implant offers stable, controlled (adequate) motion to already significantly degenerated motion segments.

the medical journal of cairo university/the medical journal of cairo university

Management of Cervical Disc Disease Using Intervertebral Cage and Dynamic Cervical Implant (DCI): Short Term Radilological Comparison Study between Fixed and Dynamic Groups