Abstract
Introduction
Cervical artificial discs (CADs) represent an established surgical option in selected patients with cervical spinal disc degeneration. Though CADs have been available for many years, there is a lack of information concerning long-term safety, durability and implant-related failure rates.
Materials and methods
The authors describe the failure of a M6-C CAD (Spinal Kinetics, Sunnyvale, CA, USA).
Results
Eight years after implantation of a CAD of the M6 type, a 39-year-old female presented with new clinical signs of cervical myelopathy. Radiologically, medullar compression due to posterior core herniation was the suspected cause. The damaged CAD was removed and the segment fused. During revision surgery, rupture of the posterior structures could be detected. Possible mechanisms leading to implant failure are discussed.
Conclusion
As there is no standard regarding clinical and radiological follow-up for patients with CADs, radiological long-term follow-up investigations seem to be justified for exclusion of implant failure.
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References
Anderson PA, Hashimoto R (2012) Total disc replacement in the cervical spine: a systematic review evaluating long-term safety. Evid Based Spine Care J 3:9–18. doi:10.1055/s-0031-1298604
Lauryssen C, Coric D, Dimmig T, Musante D, Ohnmeiss DD, Stubbs HA (2012) Cervical total disc replacement using a novel compressible prothesis: results from a prospective Food and Drug Administration—regulated feasibility study with 24-month follow-up. Int J Spine Surg 6:71–77
Patwardhan AG, Tzermiadianos MN, Tsitsopoulos PP, Voronov LI, Renner SM, Reo ML, Carandang G, Ritter-Lang K, Havey RM (2012) Primary and coupled motions after cervical total disc replacement using a compressible six-degree-of-freedom prosthesis. Eur Spine J 21(Suppl 5):S618–S629. doi:10.1007/s00586-010-1575-7
Reyes-Sanchez A, Miramontes V, Olivarez LM, Aquirre AA, Quiroz AO, Zarate-Kalfopulos B (2010) Initial clinical experience with a next-generation artificial disc for the treatment of symptomatic degenerative cervical radiculopathy. SAS J 4:9–15
Thomas S, Willems K, Van den Daelen L, Linden P, Ciocci MC, Bocher P (2013) The M6-C cervical disc prosthesis: first clinical experience in 33 patients. J Spinal Disord Tech. doi:10.1097/BSD.0000000000000025
Fan H, Wu S, Wu Z, Wang Z, Guo Z (2012) Implant failure of Bryan cervical disc due to broken polyurethane sheath: a case report. Spine (Phila Pa 1976) 37:E814–E816. doi:10.1097/BRS.0b013e3182477d85
Anderson PA, Sasso RC, Rouleau JP, Carlson CS, Goffin J (2004) The Bryan Cervical Disc: wear properties and early clinical results. Spine J 4:303S–309S. doi:10.1016/j.spinee.2004.07.026
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Brenke, C., Schmieder, K. & Barth, M. Core herniation after implantation of a cervical artificial disc: case report. Eur Spine J 24 (Suppl 4), 536–539 (2015). https://doi.org/10.1007/s00586-014-3677-0
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DOI: https://doi.org/10.1007/s00586-014-3677-0