Radiographic Outcome and Adjacent Segment Evaluation Two Years after Cervical Disc Replacement with the BagueraÃÂ®C Prosthesis as Treatment of Degenerative Cervical Disc Disease
|Patrick Fransen1*, Nils Hansen-Algenstaedt2, Athanasios Chatzisotiriou3, David Cesar Gonzalez Noriega4, Jan Verheyden5, Wim Van Hecke5 and Vincent Pointillart6|
|1Department of Neurosurgery, CHIREC - Clinique du Parc Léopold, BE-1040 Brussels, Belgium|
|2Department of Orthopaedics, University Medical Center, Orthocentrum Hamburg, Park-Klinik Manhagen DE-20246 Hamburg, Germany|
|3St. Lukes’s Hospital, GR-55236 Thessaloniki, Greece|
|4Hospital Universitario Rio Hortega, ES-47012 Valladolid, Spain|
|5IcoMetrix NV, BE-3001 Leuven, Belgium|
|6Centre Hospitalier Universitaire (CHU), FR-33000 Bordeaux, France|
|*Corresponding Author :||Patrick Fransen
Department of Neurosurgery CHIREC
- Clinique du Parc Léopold 38 rue Froissart 1040 Brussels, Belgium
Tel: +322 287 5650
Fax: + 322 287 5654
E-mail: [email protected]
|Received March 21, 2016; Accepted April 13, 2016; Published April 15, 2016|
|Citation: Fransen P, Hansen-Algenstaedt N, Chatzisotiriou A, Noriega DCG, Verheyden J, et al. (2016) Radiographic Outcome and Adjacent Segment Evaluation Two Years after Cervical Disc Replacement with the Baguera®C Prosthesis as Treatment of Degenerative Cervical Disc Disease. J Spine 5:298. doi:10.4172/2165-7939.1000298|
|Copyright: © 2016 Fransen P, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.|
Introduction: In many cases, cervical arthroplasty can avoid adjacent segment degeneration, by preserving the mobility of the operated level. In this paper, we present and analyze the radiological results of a cohort of patients who underwent cervical disc arthroplasty, with the Baguera®C cervical disc prosthesis.
Material and methods: 99 patients and a total of 123 prostheses were included in a retrospective analysis of radiographic images, based on a registry type data collection, with a two-year follow-up (FU). The radiological data was independently assessed for the range of motion, disc angle, disc height at the operated level and at the adjacent level, and for heterotopic ossifications (HO).
Results: At the operated level, the range of motion (ROM) decreased from 10.2° preoperatively to 8.7° (nonsignificant) after two years in the one level total disc replacement (TDR) group, from 9.8° to 9.1° (non-significant) in the two levels TDR group. The motion of the upper FSU changed from 10.6° preoperatively to 13.5° after two years in the one level TDR group, from 11.6° to 10.9° in the two levels group. The disc height at the level of the operated FSU changed from 4 mm preoperatively to 7.1 mm after six weeks and 6.5 mm after two years for the one level TDR.
The disc height at the level above the highest operated FSU changed from 4.24 mm preoperatively to 4 mm after six weeks and 4.2 mm after two years for the one level TDR, from 4.5 mm to 5.4 mm (6W) and 5.3 mm (2Y) for the two levels TDR.
No heterotopic ossification was observed in 46% of the patients. HO was observed, respectively 20.1% grade I, 14.5% grade II, 13.7% grade III and 5.6% grade IV. HO restricting mobility (grades III and IV) were seen in 19.3%. The prostheses were mobile in 80.6% after two years. Conclusion: Cervical arthroplasty using the Baguera®C prosthesis, demonstrated cervical mobility preservation in 80.6% of the patients, an HO rate of 54%, mostly grade I and II, no signs of subsidence and no signs of degeneration or kyphosis of the adjacent disc. This motion preserving surgical treatment, either used alone or in combination with segmental fusion, shows encouraging results in term of adjacent level disease protection and appears, therefore, as safe and effective.