Warning: mkdir(): Permission denied in /home/virtual/lib/view_data.php on line 81 Warning: fopen(/home/virtual/e-kjs/journal/upload/ip_log/ip_log_2022-08.txt): failed to open stream: No such file or directory in /home/virtual/lib/view_data.php on line 83 Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/virtual/lib/view_data.php on line 84 Comparative Analysis of Cervical Disc Arthroplasty Using Two Types of Artificial Cervical Discs: Bryan(R) versus Mobi-C(R).
Korean J Spine Search


DOI: https://doi.org/10.14245/kjs.2011.8.3.154   
Comparative Analysis of Cervical Disc Arthroplasty Using Two Types of Artificial Cervical Discs: Bryan(R) versus Mobi-C(R).
Dae Han Choi, Woo Kyung Kim, Sang Gu Lee, Chan Woo Park
Department of Neurosurgery, Gachon University, Gil Hospital, Incheon, Korea. wkkim@gilhospital.com
Since the 1990s, due to postoperative loss of mobility and adjacent segmental disease after anterior cervical fusion, many different types of cervical artificial discs have been developed as alternative implants. The purposes of this study are investigation and comparison of radiographic and clinical outcomes between two different types of prostheses, Bryan(R) and Mobi-C(R).
We retrospectively evaluated 33 patients who were treated for cervical degenerative disc disease that resulted in radiculopathy and/or myelopathy between May 2004 and April 2009. Seventeen patients underwent Bryan(R) cervical disc arthroplasty and sixteen patients underwent Mobi-C(R) arthroplasty. The radiographic outcomes were assessed by measuring the cervical lordosis, segmental lordosis, range-of-motion (ROM) of the cervical spine (C2-7), functional segmental unit (FSU), prosthesis' shell and the upper adjacent segment. The clinical results were evaluated according to the Visual Analogue Scale (VAS) for axial pain and radiculopathy, Odom's criteria, and the modified Prolo's economic and functional outcome rating scale.
The age of the study population ranged from 24 to 69 years with a mean age of 48 years vs. 46 years in the Bryan(R) and Mobi-C(R) groups, respectively. The mean duration of follow-up was 23.7 months in the Bryan(R) group and 11.3 months in the Mobi-C(R) group. The changes of overall cervical sagittal angle were not significantly different between two groups, but the increase of segmental sagittal angle (0.85degrees in Bryan(R), 8.04degrees in Mobi-C(R)), ROM of the FSU(-0.51degrees in Bryan(R), 2.47degrees in Mobi-C(R)) and ROM of the shell (1.77degrees in Bryan(R), 5.28degrees in Mobi-C(R)) were significantly higher in Mobi-C(R) group than in Bryan(R) group (p<0.05). The clinical results were not significantly different between two groups.
The Mobi-C(R) prosthesis showed more favorable radiographic results than that of the Bryan(R) prosthesis, however, the clinical outcomes were similar in both groups. Large-scale and long-term follow-up studies are needed to confirm our results.
Keywords: Degenerative disc disease;Cervical arthroplasty;Bryan artificial disc;Mobi-C artificial disc

Editorial Office
Department of Neurosurgery, Yonsei University College of Medicine
50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, Korea
Tel: +82-2-2228-2158  E-mail: theneurospine@gmail.com
The Korean Spinal Neurosurgery Society
#407, Dong-A Villate 2nd Town, 350 Seocho-daero, Seocho-gu, Seoul 06631, Korea
Tel: +82-2-585-5455  Fax: +82-2-2-523-6812  E-mail: ksns1987@gmail.com
Business License No.: 209-82-62443

Copyright © The Korean Spinal Neurosurgery Society.

Developed in M2PI

Close layer
prev next