Laminoplasty for Multilevel Cervical Spondylotic Myelopathy Guided by Modified K-line and Modified SC-line in MRI

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2020-01-01

Study Completion Date

2027-12-30

Brief Summary

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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.

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Detailed Description

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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.

Conditions

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Modified K-line and Modified SC-line in MRI

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

RETROSPECTIVE

Study Groups

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MCSM

This study collected MRI images and baseline information of patients with multilevel cervical spondylotic myelopathy (MCSM) and underwent Laminoplasty (LAMP) surgery in Nantong First People's Hospital. No interventions would be used. This study just collect the MRI images pre- or postoperation to investigate the effect of the combination 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.

No Intervention: MCSM

Intervention Type DIAGNOSTIC_TEST

No Intervention: MCSM

Interventions

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No Intervention: MCSM

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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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).

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No