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Year : 2019  |  Volume : 4  |  Issue : 2  |  Page : 29-33

Polyetheretherketone cages used in anterior cervical discectomy and fusion surgery: a meta-analysis

1 Amity University, Noida, India
2 Indian Spinal Injuries Centre, Vasant kunj, New Delhi, India

Correspondence Address:
Harvinder Singh Chhabra
Indian Spinal Injuries Centre, Vasant kunj, New Delhi
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2542-4157.259629

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Background and objective: In the current clinical scenario, a wide variety of fusion techniques are being used along with polyetheretherketone (PEEK) cages in anterior cervical discectomy and fusion surgeries. Some of these techniques involve use of autografts, allografts, biomaterials or only PEEK cages. In this study, the existing literatures for anterior cervical discectomy fusion surgeries using PEEK cages and their outcomes have been reviewed to evaluate the results for the best possible alternative. Materials and methods: A PubMed search for all papers stating “PEEK cages used in cervical spinal fusion,” “PEEK materials used in cervical spinal fusion,” and “artificial materials used in cervical fusion surgery with PEEK cages” was done for all studies before January 2018. A total of 197 studies were found, of which 15 were shortlisted as per the inclusion criteria. The existing literatures on PEEK cages used in spinal surgeries were reviewed and analyzed. Statistical analysis was done using SPSS software version 25.0 and Student’s t-test was used to compare the results. Results: The total number of patients involved in the existing study was 767 with a mean age of 51.67 ± 9.01 years. 191 patients (24.9%) had cervical radiculopathy or myelopathy; 35 patients (4.5%) had cervical degenerative diseases; 29 patients (3.78%) had cervical spine injury with monosegmental instability; and the rest of the patients suffered from other disorders. The level of surgery for patients was single in 429 patients (55.93%) and multiple in 338 patients (44.06%). PEEK plus bone grafts had a significantly better fusion rate compared with PEEK plus artificial materials (95% confidence interval: 91.075 ± 2.09%; P = 0.0035) for multiple-level anterior cervical discectomy and fusion surgery. Conclusion: PEEK plus bone grafts showed a significant fusion rate compared with PEEK plus artificial materials. PEEK plus bone grafts is a better filler material as compared to PEEK plus artificial materials in anterior cervical discectomy and fusion surgeries for multiple levels involved.

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