Ossification of the posterior longitudinal ligament
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. OPLL involving C2 segment and above; 2. C2 dome decompression and C2 single door laminoplasty.
Exclusion criteria
Exclusion criteria: 1. K line (-); 2. Patients with symptoms of thoracolumbar spinal stenosis; 3. Patients with cervical fracture, tumor, dysplasia, infection, etc; 4. Patients with cervical instability or slippage; 5. Patients with severe scoliosis; 6. Patients with a history of cervical spine surgery; 7. Patients with severe or poor general conditions can not tolerate surgery; 8. Lost patients.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Japanese Orthopedic Association (JOA) scoring;Visual Analog Scale (VAS) scoring;Neck Disability Index (NDI);Space available for the cord (SAC);cervical curvature index (CCI);cervical range of motion (ROM); | — |
Countries
China
Contacts
Department of orthopedics, the Second Affiliated Hospital of Medical College of Zhejiang University