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Location change of center of rotation after single-level cervical total disc replacement with ProDisc-C

Year 2016, Volume: 50 Issue: 3, 339 - , 26.04.2016

Abstract

Objective: Previous studies reported that the location of the center of rotation (COR) at instrumented level after cervical total disc replacement (TDR) deviated from its preoperative location. However, currently, it is unknown whether the deviated COR is linked to the range of motion (ROM) at instrumented level. The purpose of this study was to evaluate the clinical outcomes after cervical TDR with ProDisc-C (Synthes, West Chester, PA, USA), as well as investigate the location change of COR at instrumented level and its clinical significance.
Methods: A total of 23 patients who underwent single-level cervical TDR with ProDisc-C were included. Japanese Orthopaedic Association ( JOA) score and Neck Disability Index (NDI) were used to assess clinical outcomes. Radiographic parameters such as cervical ROM, instrumented segmental ROM, adjacent segmental ROM, and intervertebral height were analyzed. Additionally, the location change of COR at instrumented level and its clinical significance were further analyzed by the alteration of its coordinates (COR-X, COR-Y).
Results: JOA scores increased significantly, while NDI scores decreased at final follow-up. No differences were found in cervical global ROM, instrumented segmental ROM, adjacent segmental ROM, and COR-Y at instrumented level between preoperative and final follow-up measurements (p>0.05); however, intervertebral height and COR-X increased significantly (p<0.05).
Conclusion: Cervical global ROM, instrumented segmental ROM, and adjacent segmental ROM could be effectively maintained, and intervertebral height was increased after TDR with ProDisc-C. The location of COR at instrumented level shifted forward after cervical TDR.

Year 2016, Volume: 50 Issue: 3, 339 - , 26.04.2016

Abstract

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Details

Primary Language English
Journal Section Original Article
Authors

Jigang Lou This is me

Huibo Li This is me

Xin Rong This is me

Wenjie Wu This is me

Hao Liu This is me

Publication Date April 26, 2016
Published in Issue Year 2016 Volume: 50 Issue: 3

Cite

APA Lou, J., Li, H., Rong, X., Wu, W., et al. (2016). Location change of center of rotation after single-level cervical total disc replacement with ProDisc-C. Acta Orthopaedica Et Traumatologica Turcica, 50(3), 339.
AMA Lou J, Li H, Rong X, Wu W, Liu H. Location change of center of rotation after single-level cervical total disc replacement with ProDisc-C. Acta Orthopaedica et Traumatologica Turcica. April 2016;50(3):339.
Chicago Lou, Jigang, Huibo Li, Xin Rong, Wenjie Wu, and Hao Liu. “Location Change of Center of Rotation After Single-Level Cervical Total Disc Replacement With ProDisc-C”. Acta Orthopaedica Et Traumatologica Turcica 50, no. 3 (April 2016): 339.
EndNote Lou J, Li H, Rong X, Wu W, Liu H (April 1, 2016) Location change of center of rotation after single-level cervical total disc replacement with ProDisc-C. Acta Orthopaedica et Traumatologica Turcica 50 3 339.
IEEE J. Lou, H. Li, X. Rong, W. Wu, and H. Liu, “Location change of center of rotation after single-level cervical total disc replacement with ProDisc-C”, Acta Orthopaedica et Traumatologica Turcica, vol. 50, no. 3, p. 339, 2016.
ISNAD Lou, Jigang et al. “Location Change of Center of Rotation After Single-Level Cervical Total Disc Replacement With ProDisc-C”. Acta Orthopaedica et Traumatologica Turcica 50/3 (April 2016), 339.
JAMA Lou J, Li H, Rong X, Wu W, Liu H. Location change of center of rotation after single-level cervical total disc replacement with ProDisc-C. Acta Orthopaedica et Traumatologica Turcica. 2016;50:339.
MLA Lou, Jigang et al. “Location Change of Center of Rotation After Single-Level Cervical Total Disc Replacement With ProDisc-C”. Acta Orthopaedica Et Traumatologica Turcica, vol. 50, no. 3, 2016, p. 339.
Vancouver Lou J, Li H, Rong X, Wu W, Liu H. Location change of center of rotation after single-level cervical total disc replacement with ProDisc-C. Acta Orthopaedica et Traumatologica Turcica. 2016;50(3):339.