12/10/2023 0 Comments Cervical spine alignment device![]() ![]() For posterior procedures, the revision rate after cervical foraminotomy has been reported to range from 2.9% at 7 years to 5% at 31.7 months compared to laminoplasty with a revision rate ranging from 2.1% at 15 years to 13% at 42.3 months, and laminectomy and fusion which has a revision rate ranging from 2% to 27% at 41.3 months. Reoperation rates in patients undergoing cervical disc arthroplasty is reported to range from 1.8% to 5.4% at 2 years to 2.9% at 5-year follow-up. For these procedures, the most common reason for revision surgery is adjacent segment disease, which has an average incidence of new symptoms between 1.6% to 4.2% per year. For anterior cervical decompression and fusion (ACDF), the 2-year revision rate ranges from 2.1% to 9.13% for single level surgery, and from 4.4% to 10.7% for multilevel ACDF. Other important parameters that account for the cervical-pelvic relationship are surveyed in detail, and it is recognized that all such parameters need to be validated in studies that correlate HRQOL outcomes following cervical deformity correction.Revision rates for surgery on the cervical spine can be high, and vary by the type of procedure performed. Just as understanding pelvic incidence as it relates to lumbar lordosis was crucial in building our knowledge of thoracolumbar deformities, T-1 incidence and cervical sagittal balance can further our understanding of cervical deformities. The future direction of cervical deformity correction should include a comprehensive approach in assessing global cervicalpelvic relationships. Awareness of the development of postlaminectomy kyphosis is critical as it relates to cervical myelopathy. Surgical correction of cervical myelopathy should always take into consideration cervical sagittal alignment, as decompression alone may not decrease cord tension induced by kyphosis. Sagittal alignment of the cervical spine may play a substantial role in the development of cervical myelopathy as cervical deformity can lead to spinal cord compression and cord tension. Further clinical studies are needed to explore the relationship of cervical malalignment and the development of ASD. The article details mechanisms by which cervical kyphotic deformity potentially leads to ASD and discusses previous studies that suggest how postoperative sagittal malalignment may promote ASD. ![]() Analysis of the cervical regional alignment with respect to overall spinal pelvic alignment is critical. Evidence from a few recent studies suggests correlations between radiographic parameters in the cervical spine and HRQOL. ![]() An evolving trend is defining cervical sagittal alignment. Cervical deformity is examined in detail as deformities localized to the cervical spine affect, and are affected by, other parameters of the spine in preserving global sagittal alignment. Popular methods currently used to quantify cervical alignment are discussed including cervical lordosis, sagittal vertical axis, and horizontal gaze with the chin-brow to vertical angle. This paper is a narrative review of normal cervical alignment, methods for quantifying alignment, and how alignment is associated with cervical deformity, myelopathy, and adjacent-segment disease (ASD), with discussions of health-related quality of life (HRQOL).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |