Assessment of Cervical Myelopathy Risk in Ossification of the Posterior Longitudinal Ligament Patients With Spinal Cord Compression Based on Segmental Dynamic Versus Static Factors

This study examines the relationship between ossification of the posterior longitudinal ligament (OPLL) and the severity of cervical myelopathy using both static and dynamic factors in the cervical spine. The research investigates how factors like spinal canal space, cervical spine alignment, and range of motion at different segments of the cervical spine contribute to the development of myelopathy in OPLL patients. The study aims to provide a more comprehensive understanding of the risk factors for myelopathy in OPLL patients, which can help improve clinical treatment strategies.

• 1
  Minimal space available for the spinal cord (SAC), C2–7 Cobb angle, total range of motion (ROM), and local ROM were identified as independent predictors of myelopathy in OPLL patients.
• 2
  Patients with myelopathy had a straighter whole cervical spine and poorer cervical mobility compared to those without myelopathy.
• 3
  Hypermobility of the C2–3 and C3–4 segments contributes significantly to the development of myelopathy in OPLL.