caa a22 4500 445834676 CHVBK 20180317145326.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s00586-011-1916-1 doi (NATIONALLICENCE)springer-10.1007/s00586-011-1916-1 Adjacent-level degeneration after cervical disc arthroplasty versus fusion [Elektronische Daten] [Carlos Maldonado, Ricardo Paz, Claudia Martin] Introduction: The principal objective of this study was to evaluate the incidence of adjacent-segment degeneration (ASD) in patients who underwent cervical disc arthroplasty (CDA) as compared with anterior cervical discectomy and fusion (ACDF). Methods: It is a prospective cohort study of patients with a single-level cervical degenerative disc disease from C3 to C7 who underwent CDA or ACDF between January 2004 and December 2006, with a minimum follow-up of 3years. The patients were evaluated pre- and postoperatively with the visual analog scale (VAS), the neck disability index (NDI), and a complete neurological examination. Plain radiographic assessments included sagittal-plane angulation, range of motion (ROM), and radiological signs of ASD. Results: One hundred and five patients underwent ACDF and 85 were treated with CDA. The postoperative VAS and NDI were equivalent in both groups. The ROM was preserved in the CDA group but with a small decreased tendency within the time. Radiographic evidence of ASD was found in 11 (10.5%) patients in the ACDF group and in 7 (8.8%) subjects in the CDA group. The Kaplan-Meier survival analysis for the ASD occurrence did not reach statistically significant differences (log rank, P=0.72). Conclusions: Preservation of motion in the CDA patients was not associated with a reduction of the incidence of symptomatic adjacent-segment disease and there may be other factors that influence ASD. Springer-Verlag, 2011 Adjacent-segment degeneration nationallicence Degenerative disc disease nationallicence Cervical disc arthroplasty nationallicence Anterior cervical discectomy and fusion nationallicence Maldonado Carlos Department of Neurosurgery, Hospital Insular of Las Palmas, Plaza Doctor Pasteur, s/n., 35016, Las Palmas de Gran Canaria, Spain aut Paz Ricardo Department of Neurosurgery, Hospital Insular of Las Palmas, Plaza Doctor Pasteur, s/n., 35016, Las Palmas de Gran Canaria, Spain aut Martin Claudia Department of Radiology of Clinica Lomas Altas, Grupo C.T. Scanner, Mexico city, Mexico aut European Spine Journal Springer-Verlag 20(2011-08-01), 403-407 0940-6719 20<403 2011 20 586 https://doi.org/10.1007/s00586-011-1916-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00586-011-1916-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maldonado Carlos Department of Neurosurgery, Hospital Insular of Las Palmas, Plaza Doctor Pasteur, s/n., 35016, Las Palmas de Gran Canaria, Spain aut NATIONALLICENCE 700 1- Paz Ricardo Department of Neurosurgery, Hospital Insular of Las Palmas, Plaza Doctor Pasteur, s/n., 35016, Las Palmas de Gran Canaria, Spain aut NATIONALLICENCE 700 1- Martin Claudia Department of Radiology of Clinica Lomas Altas, Grupo C.T. Scanner, Mexico city, Mexico aut NATIONALLICENCE 773 0- European Spine Journal Springer-Verlag 20(2011-08-01), 403-407 0940-6719 20<403 2011 20 586 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer