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Case Reports
. 2019 Sep 20:10:183.
doi: 10.25259/SNI_431_2019. eCollection 2019.

Cervical instability following artificial disc replacement

Ki Joon Kim  1 , Mun Soo Gang  2 , Jung-Sik Bae  2 , Jee Soo Jang  1 , Il-Tae Jang  3
Affiliations
Case Reports

Cervical instability following artificial disc replacement

Ki Joon Kim et al. Surg Neurol Int. .

Abstract

Background: Although there has been increased interest in utilizing artificial disc replacement (ADR) techniques to treat cervical degenerative disease, few reports have focused on their postoperative complication and reoperation rates.

Case description: A 52-year-old male underwent the uneventful placement of a C5-C6 cervical ADR for disc disease and foraminal stenosis. One year later, he experienced the onset of severe neck pain attributed to instability of the ADR construct. This required removal of the C5-6 ADR and subsequent fusion.

Conclusion: Strict adherence to appropriate criteria is critical for choosing when to place a cervical ADR. This requires documenting; adequate surgical indications, careful selection of the appropriate ADR device, meticulous surgical technique, proper preservation of the supporting structures, and sufficient neural decompression.

Keywords: Artificial disc replacement; Cervical instability; Fusion.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1:
Figure 1:
(a) The magnetic resonance imaging showed a herniated intervertebral disc (arrow), foraminal stenosis at C5-6 left. (b) The computed tomography showed a foraminal stenosis (arrow) at C5-6 left. (c) The flexion view, (d) The extension view showed disc space narrowing and bony spur at C5-6.
Figure 2:
Figure 2:
(a) Postoperative – 1 week, (b) Postoperative – 1 week, (c) Postoperative – 2 months, (d) Postoperative – 2 months, (e) Postoperative – 14 months, (f) Postoperative - 14 months showed an aggravation of cervical instability at C5-6. Cervical instability at C5-6, the ADR site, aggravated in the temporal order of (a-f). (g) Radiograph obtained after a revision operation, in which the ADR implant was removed and ACDF was performed.
See this image and copyright information in PMC

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