Laminoplasty for Multilevel Cervical Spondylotic Myelopathy Guided by Modified K-line and Modified SC-line in MRI
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: No Intervention: MCSM.
- Who it may be relevant to
- Registry conditions: Modified K-line and Modified SC-line in MRI. Basic parameters: from 18 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- China
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Official title
Feasibility and Clinical Applicability of Surgical Segments Choice for Laminoplasty in Multilevel Cervical Spondylotic Myelopathy Guided by Modified K-line and Modified SC-line in MRI
Overview
This study intended to investigate the combined Impact of mK-line and mSC-line on the selection of the surgical approach and whether could be used to predict sufficient decompression of cervical spinal cord and clinical outcome in patients after LAMP.
Detailed description
This study intended to collect MRI of Patients with Multilevel Cervical Spondylotic Myelopathy. K-line(-) patients can be performed LAMP surgery for better prognosis if mK-line(+) and TypeⅠSC-line in MRI, but there are doubts on TypeⅡ and TypeⅢ. However, there has been no study that investigated the combination role of the mK-line and SC-line in surgical decision making for patients with MCSM. In this study, the investigators defined mK-line as a straight line connecting the midpoints of the anteroposterior canal diameter at cranial and caudal vertebrae of the open-door segment in MRI. Accordingly, the investigators propose a modified spinal cord line(mSC-line) that is a straight line connecting the postero-inferior point of the spinal cord at cranial and caudal vertebrae of the open-door segment in MRI, and simplify the mSC-line types into mSC-line(+) and mSC-line(-). In other words, mK-line and mSC-line in MRI are not fixed, but vary depending on the preoperative open-door segments. This study included patients with LAMP surgery for follow up, whose mK-line and mSC-line in MRI were double-positive for preoperative deciding open-door segments.
Interventions
- Diagnostic test No Intervention: MCSM
No Intervention: MCSM
Primary outcome measures
- sex [Time frame: From 2020 to 2026]
- age [Time frame: From 2020 to 2026]
- Japanese Orthopedic Association (JOA) score [Time frame: From 2020 to 2026]
- Visual Analog Scale (VAS) score [Time frame: From 2020 to 2026]
- Neck Disability Index(NDI) score [Time frame: From 2020 to 2026]
- Cobb angle [Time frame: From 2020 to 2026]
- Ishihara's Cervical Curvature Index(CCI) [Time frame: From 2020 to 2026]
Eligibility criteria
Inclusion criteria
(1) Diagnosis of MCSM confirmed by two spine surgeons with MRI examination and clinic signs; (2) More than 2 level lesions and/or spinal stenosis in MRI, underwent LAMP surgery; (3) Available for both preoperative and follow-up imaging data and clinical data, including sex, age, clinical symptoms, Japanese Orthopedic Association (JOA) score, Visual Analog Scale (VAS) score, Neck Disability Index(NDI) score and MRI data.
Exclusion criteria
(1) Previous cervical spine surgery; (2) Diagnosis of tumor, central cord syndrome, infection or other acute traumatic injuries; (3) Diagnosed neurological disorders Parkinson's disease, polio, multiple sclerosis, or other central and peripheral nervous system diseases).
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Observational model
- Case-only
Study locations
China · 1 center
- The Second Affiliated Hospital of Nantong University — Nantong
Identifiers
NCT: NCT06478485 · mK-line and mSC-line