Radiographic evaluation of the correlation between ossification of the nuchal ligament and sagittal alignment and segmental stability of the cervical backbone in sufferers with cervical spondylotic myelopathy.
Acta Radiol. 2018 Jan 01;:284185118778866
Authors: Ying J, Teng H, Qian Y, Hu Y, Wen T, Ruan D, Zhu M
Background Ossification of the nuchal ligament (ONL) brought on by power harm to the nuchal ligament (NL) is quite common in instability-related cervical problems. Objective To find out attainable correlations between ONL, sagittal alignment, and segmental stability of the cervical backbone. Materials and Strategies Seventy-three sufferers with cervical spondylotic myelopathy (CSM) and ONL (ONL group) and 118 sufferers with CSM solely (management group) have been recruited. Radiographic knowledge included the traits of ONL, sagittal alignment and segmental stability, and ossification of the posterior longitudinal ligament (OPLL). We carried out comparisons by way of radiographic parameters between the ONL and management teams. The correlations between ONL dimension, cervical sagittal alignment, and segmental stability have been analyzed. Multivariate logistic regression was used to establish the impartial threat elements of the event of ONL. Outcomes C2-C7 sagittal vertical axis (SVA), T1 slope (T1S), T1S minus cervical lordosis (T1S-CL) on the lateral plain, angular displacement (AD), and horizontal displacement (HD) on the dynamic radiograph elevated considerably within the ONL group in contrast with the management group. The dimensions of ONL considerably correlated with C2-C7 SVA, T1S, AD, and HD. The incidence of ONL was increased in sufferers with OPLL and segmental instability. Cervical instability, sagittal malalignment, and OPLL have been impartial predictors of the event of ONL by multivariate evaluation. Conclusion Sufferers with ONL usually tend to have irregular sagittal alignment and instability of the cervical backbone. Thus, elevated consciousness and appreciation of this often-overlooked radiographic discovering is warranted throughout analysis and remedy of instability-related cervical pathologies and accidents.
PMID: 29788751 [PubMed – as supplied by publisher]