scholarly journals Radiographic Outcome and Adjacent Segment Evaluation Two Years after Cervical Disc Replacement with the Baguera®C Prosthesis as Treatment of Degenerative Cervical Disc Disease

2016 ◽  
Vol 05 (02) ◽  
Author(s):  
Patrick Fransen ◽  
Nils Hansen-Algenstaedt
Keyword(s):  
Disc Replacement ◽  
Cervical Disc ◽  
Adjacent Segment ◽  
Radiographic Outcome ◽  
Cervical Disc Disease ◽  
Disc Disease ◽  
Cervical Disc Replacement ◽  
Degenerative Cervical Disc Disease

scholarly journals Cervical sagittal alignment after Prestige LP cervical disc replacement: radiological results and clinical impacts from a single-center experience

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Xiaofei Wang ◽  
Yang Meng ◽  
Hao Liu ◽  
Hua Chen ◽  
Beiyu Wang ◽  
...  
Keyword(s):  
Sagittal Alignment ◽  
Disc Replacement ◽  
Cervical Disc ◽  
Adjacent Segment ◽  
Single Center ◽  
Disc Disease ◽  
Sagittal Vertical Axis ◽  
Cervical Disc Replacement ◽  
Cervical Sagittal Alignment ◽  
The Impact

Abstract Background Cervical disc replacement (CDR) has been widely used to treat one- and two-level cervical degenerative disc disease. Studies have shown the effectiveness of CDR in preserving range of motion (ROM) and delaying adjacent segment degeneration (ASD). Cervical sagittal alignment is an important factor affecting favorable clinical outcomes in cervical spine surgery. This study aimed to explore whether cervical sagittal alignment can be maintained after CDR and to identify the impact of cervical sagittal alignment on outcomes after CDR. Methods This was a single-center, retrospective study. 132 patients who underwent one-level CDR were included. Cervical sagittal alignments, including cervical lordosis (CL), segmental alignment (SA), sagittal vertical axis (SVA), T1 slope (T1s), and T1s minus CL (T1s-CL), were measured. The effects of cervical sagittal alignment on the CDR outcomes were analyzed. Patients were divided into the heterotopic ossification (HO) group and ASD group to determine the potential impacts of cervical sagittal parameters. Results The cervical sagittal alignment parameters, except for the SVA, were significantly improved after CDR and showed decreasing trends at the last follow-up. Significantly higher CL and T1s were found in patients with better ROM after CDR. SVA ≥ 20 mm increased the risk of anterior HO (odds ratio = 2.945, P = 0.007). Significantly kyphotic SA and lower T1s values were found in the ASD patients than in the non-ASD patients (P < 0.05). Patients with ASD at the inferior level showed significantly worse CL (P < 0.05). Conclusion CDR had limited function of improving cervical sagittal alignment. Poor cervical sagittal alignment after CDR was associated with HO, ASD, and less ROM.

scholarly journals Four-year results of a prospective single-arm study on 200 semi-constrained total cervical disc prostheses: clinical and radiographic outcome

2016 ◽  
Vol 25 (5) ◽  
pp. 556-565 ◽  
Author(s):  
Hans-Jörg Meisel ◽  
Lubomír Jurák ◽  
Jussi Antinheimo ◽  
Ricardo Arregui ◽  
Bernhard Bruchmann ◽  
...  
Keyword(s):  
Total Disc Replacement ◽  
Neck Disability Index ◽  
Disc Replacement ◽  
Cervical Disc ◽  
Adjacent Segment ◽  
Radiographic Outcome ◽  
Cervical Disc Replacement ◽  
Arm Pain ◽  
Facet Joint Degeneration

OBJECTIVE Recent studies have described encouraging outcomes after cervical total disc replacement (cTDR), but there are also critical debates regarding the long-term effects of heterotopic ossification (HO) and the prevalence of adjacent-level degeneration. The aim in this paper was to provide 4-year clinical and radiographic outcome results on the activ C disc prosthesis. METHODS A total of 200 subjects underwent single-level activ C (Aesculap AG) implantation between C-3 and C-7 for the treatment of symptomatic degenerative disc disease. Clinical and radiographic assessments were performed preoperatively, intraoperatively, at discharge, and again at 6 weeks, 6 months, 1 year, 2 years, and 4 years. Radiographic evaluations were done by an independent core laboratory using a specific software for quantitative motion analysis. RESULTS Neck Disability Index (NDI) and visual analog scale (VAS) score for neck and arm pain decreased significantly from baseline to the 4-year follow-up. The mean improvement for NDI was 20, for VAS severity and frequency of neck pain 26.4 and 28, and for VAS severity and frequency of arm pain 30.7 and 35.1, respectively. The neurological situation improved for the majority of patients (86.4%); 76.1% of cases were asymptomatic. Subsequent surgical interventions were reported in 7% of the cases, including device removals in 3%. In 2.5% a subsidence greater than 3 mm was recorded; 1 of these cases also had a migration greater than 3 mm. No device displacement, expulsion, disassembly, loose or fractured device, osteolysis, or facet joint degeneration at the index level was observed. Segmental lordotic alignment changed from −2.4° preoperatively to −6.2° at 4 years, and postoperative height was maintained during the follow-up. Advanced HO (Grade III and IV) was present in 27.1% of the cases; 82.4% showed segmental mobility. A progression of radiographic adjacent-segment degeneration occurred in 28.2%, but only 4.5% required surgical treatment. CONCLUSIONS The activ C is a safe and effective device for cervical disc replacement confirming the encouraging results after cTDR. Clinical trial registration no.: NCT02492724 (clinicaltrials.gov)

The future in the care of the cervical spine: interbody fusion and arthroplasty

2004 ◽  
Vol 1 (2) ◽  
pp. 155-159 ◽  
Author(s):  
Praveen V. Mummaneni ◽  
Regis W. Haid
Keyword(s):  
Adjacent Segment Degeneration ◽  
Cervical Disc ◽  
Adjacent Segment ◽  
Cervical Fusion ◽  
Cervical Disc Disease ◽  
Disc Disease ◽  
Cervical Arthroplasty ◽  
Content Type ◽  
Fine Print

✓ In the past 50 years tremendous advances have been made in the treatment of cervical disc disease with cervical fusion. Fusion rates have surpassed 95% after application of anterior cervical implants. Adjacent-segment degeneration, however, has plagued the long-term clinical success of cervical fusion. Cervical arthroplasty has been introduced to maintain cervical motion and potentially avoid or minimize adjacent-segment degeneration. If cervical arthroplasty is successful, the long-term results of surgery for cervical disc disease may improve; however, there are associated drawbacks that must be overcome. Implant wear, fatigue, and failure have been reported in cases of large-joint arthroplasty, and research is underway to limit these problems in cervical arthroplasty. In this article the authors trace the evolution of cervical fusion and the new technique of cervical arthroplasty. The nomenclature of cervical arthroplasty will also be introduced.

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