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| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Yan, Kai Shi, Zhan He, Da Liu, Bo Xiao, Bin Wang, Qilong Tian, Wei |
| Abstract | Background Short term results of the change of center of rotation (COR) after Bryan cervical disc replacement (CDR) have been reported. However, there is a lack of long-term studies focusing on the COR and its influences on facet joint degeneration. Objective To evaluate the long-term clinical and radiographic results of Bryan CDR, and to explore the influence of deviated COR on facet joint degeneration at index level. Methods It is a retrospective follow up study conducted in China. Eighty-three consecutive patients who received single-level Bryan CDR were retrospectively reviewed. Clinical evaluation included Japanese Orthopaedic Association (JOA) score, Neck Disability Index (NDI), and Odom’s scale. Radiographic evaluation underwent before surgery, at early follow-up (3 months) and last follow-up (10 years). The radiographic parameters included range of motion (ROM), location of COR presented by the coordinates (COR-x, COR-y), and facet joint degeneration score. Correlation analysis was conducted between changes of COR and facet joint degeneration score. Results Fifty-nine patients were included, with an average age of 44.6 ± 7.4 years. The mean follow-up time was 135.7 ± 12.4 (120–155) months. JOA score, NDI and Odom’s scale showed significant improvements at last follow-up. The ROM was well preserved through follow-up. 33 patients (55.9%) showed deterioration of facet joint degeneration at index level. The increment of facet joint degeneration score at index level was strongly correlated with the change of COR-x (r = 0.758, P < 0.001), and weakly correlated with the change of COR-y (r=-0.473, P < 0.001). The deviation of COR was significantly greater in Group Degeneration than that in Group Non-degeneration (14.8 ± 10.5% vs. -2.6 ± 8.1% for COR-x, and − 6.4 ± 7.5% vs. 0.8 ± 8.3% for COR-y). Conclusions Bryan CDR with minimum of 10-year follow-up achieved favorable clinical outcome and good maintenance of ROM. Deviated COR could be an important risk factor for facet joint degeneration. |
| Related Links | https://bmcsurg.biomedcentral.com/counter/pdf/10.1186/s12893-024-02615-9.pdf |
| Ending Page | 9 |
| Page Count | 9 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| ISSN | 14712482 |
| DOI | 10.1186/s12893-024-02615-9 |
| Journal | BMC Surgery |
| Issue Number | 1 |
| Volume Number | 24 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2024-11-04 |
| Access Restriction | Open |
| Subject Keyword | Surgery Internal Medicine Bryan cervical disc replacement Range of motion Center of rotation Facet joint degeneration Long-term follow-up |
| Content Type | Text |
| Resource Type | Article |
| Subject | Surgery |
| Journal Impact Factor | 1.6/2023 |
| 5-Year Journal Impact Factor | 1.9/2023 |
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