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KMID : 1099620140110030127
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Korean Journal of Spine
2014 Volume.11 No. 3 p.127 ~ p.135
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Comparison between Two Different Cervical Interbody Fusion Cages in One Level Stand-alone ACDF : Carbon Fiber Composite Frame Cage Versus Polyetheretherketone Cage
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Yoo Min-Wook
Kim Wook-Ha
Hyun Seung-Jae
Kim Ki-Jeong
Jahng Tae-Ahn
Kim Hyun-Jib
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Abstract
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Objective: The authors conducted a retrospective study to compare the implantation of carbon fiber composite frame cages (CFCFCs) to the implantation of polyetheretherketone (PEEK) cages after anterior cervical discectomy for cervical degenerative disc disease. In addition, the predictive factors that influenced fusion or subsidence were investigated.
Methods: A total of 58 patients with single-level degenerative disc disease were treated with anterior cervical discectomy and implantation of stand-alone cages; CFCFCs were used in 35 patients, and PEEK cages were used in 23 patients. Preoperative and postoperative radiological and clinical assessments were performed.
Results: During the mean follow-up period of 41 months, fusion occurred in 43 patients (74.1%), and subsidence developed in 18 patients (31.0%). Pain decreased in all patients, and the patients’ satisfaction rate was 75.9%. Neither fusion nor subsidence was related to the clinical outcome. There were no significant differences in the clinical and radiological outcomes between the CFCFC and the PEEK cage groups. Smoking history (p=0.023) was significantly associated with pseudarthrosis, and cage height (≥7mm) (p=0.037) were significantly associated with subsidence.
Conclusion: The clinical and radiological results were similar between the CFCFC and the PEEK cage groups. Fusion or subsidence did not affect the clinical outcomes. Smoking history and cage height (≥7mm) were predictive factors for pseudarthrosis or subsidence in anterior cervical discectomy and fusion with stand-alone cages.
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KEYWORD
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ACDF, Carbon cage, Polyetheretherketone cage
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