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KMID : 1001920180610050574
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Journal of Korean Neurosurgical Society
2018 Volume.61 No. 5 p.574 ~ p.581
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Can the Zero-Profile Implant Be Used for Anterior Cervical Discectomy and Fusion in Traumatic Subaxial Disc Injury? A Preliminary, Retrospective Study
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Kim Tae-Hun
Kim Dae-Hyun
Kim Ki-Hong
Kwak Young-Seok
Kwak Sang-Gyu
Choi Man-Kyu
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Abstract
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Objective: The zero-profile implant (Zero-P) is accepted for use in anterior cervical fusion for the treatment of degenerative cervical disease. However, evidence pertaining to its efficiency and safety in traumatic cervical injury is largely insufficient. This study aimed to compare the overall outcomes of patients who underwent Zero-P for traumatic cervical disc injury.
Methods: Data from a total of 53 consecutive patients who underwent surgery for traumatic or degenerative cervical disc disease using the Zero-P were reviewed. Seventeen patients (group A) had traumatic cervical disc injury and the remaining 36 (group B) had degenerative cervical disc herniation. The fusion and subsidence rates and Cobb angle were measured retrospectively from plain radiographs. The patients’ clinical outcomes were evaluated using the Japanese Orthopedic Association (JOA) score and Odom’s criteria.
Results: The C2-7 Cobb and operative segmental angles increased by 3.45±7.61 and 2.94±4.59 in group A; and 2.46±7.31 and 2.88±5.49 in group B over 12 postoperative months, respectively. The subsidence and fusion rate was 35.0% and 95.0% in group A; and 36.6% and 95.1% in group B, respectively. None of the parameters differed significantly between groups. The clinical outcomes were similar in both groups in terms of increasing the JOA score and producing a grade higher than “good” using Odom’s criteria.
Conclusion: The application of Zero-P in patients with traumatic cervical disc injury was found to be acceptable when compared with the clinical and radiological outcomes of degenerative cervical spondylosis.
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KEYWORD
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Cervical vertebrae, Spinal cord trauma, Allograft
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