Evaluation of Results of Anterior Cervical Discectomy Fusion (ACDF) by Cervical Cage with Bone Graft for the Treatment of Single Level Cervical Spondylotic Myelopathy

Study Design A retrospective study was performed. Objective To investigate the prevalence and risk factors for adjacent segment disease (ASD) after anterior cervical discectomy and fusion (ACDF) and the clinical efficacy of revision surgery. Method A total of 219 patients treated with ACDF were analyzed retrospectively. Demographic characteristics, including age, sex, body mass index (BMI) and bone mineral density (BMD), and radiographic measurements, including C2-C7 cervical sagittal vertical axis (cSVA), T1 slope (T1S), thoracic inlet angle (TIA) and C2-C7 Cobb angle, were analyzed. Modified Japanese Orthopaedic Association (mJOA) score and visual analog scale (VAS) score were used to evaluate patient function. Parameters were analyzed with Student's t test, and potential risk factors for ASD were further analyzed with multivariate logistic regression analysis. Results The incidence of ASD after ACDF surgeries was 21%. The severity of osteoporosis, BMI and C2-C7 cSVA were significantly higher in the ASD group than in the NASD group ( P < .05). The preoperative and postoperative TIAs were lower in the ASD group ( P < .05). Multivariate logistic regression analysis showed that a high BMI, severe osteoporosis and a high C2-C7 cSVA were risk factors for ASD after ACDF ( P < .05). The postoperative TIA and postoperative T1S were also correlated with ASD ( P < .05). Conclusion Patients with a high BMI, severe osteoporosis, and a large C2-C7 cSVA after ACDF have a higher risk of ASD, while a large T1S and TIA may be protective factors. In addition, revision surgery can restore cervical spine balance in patients with ASD and promote better clinical outcomes.

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Prevalence and Risk Factors for Cervical Adjacent Segment Disease and Analysis of the Clinical Effect of Revision Surgery: A Minimum of 5 Years’ Follow-Up

Wei

Yang

Zhang

et al. 2023

Global Spine Journal

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Evaluation of Results of Anterior Cervical Discectomy Fusion (ACDF) by Cervical Cage with Bone Graft for the Treatment of Single Level Cervical Spondylotic Myelopathy

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Prevalence and Risk Factors for Cervical Adjacent Segment Disease and Analysis of the Clinical Effect of Revision Surgery: A Minimum of 5 Years’ Follow-Up

Prevalence and Risk Factors for Cervical Adjacent Segment Disease and Analysis of the Clinical Effect of Revision Surgery: A Minimum of 5 Years’ Follow-Up

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