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Related Experiment Video

Updated: Dec 10, 2025

Diffusion Tensor Magnetic Resonance Imaging in Chronic Spinal Cord Compression
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Multi-shot echo-planar diffusion tensor imaging in cervical spondylotic myelopathy.

Hanwen Zhang1, Li Guan1, Yong Hai1

  • 1Department of Orthopedic Surgery, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.

The Bone & Joint Journal
|September 1, 2020
PubMed
Summary

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Diffusion tensor imaging (DTI) can detect spinal cord changes after surgery for cervical spondylotic myelopathy (CSM). Fractional anisotropy (FA) values and clinical scores show maximum recovery two years post-surgery.

Area of Science:

  • Neurosurgery
  • Radiology
  • Orthopedics

Background:

  • Cervical spondylotic myelopathy (CSM) is a condition affecting the spinal cord.
  • Decompressive surgery is a common treatment for CSM.
  • Assessing functional recovery after surgery is crucial.

Purpose of the Study:

  • To investigate changes in diffusion metrics using diffusion tensor imaging (DTI) in CSM patients post-surgery.
  • To correlate DTI metrics with clinical outcomes up to five years after surgery.
  • To evaluate DTI as a potential biomarker for spinal cord dysfunction.

Main Methods:

  • Multi-shot, high-resolution DTI (ms-DTI) was used in CSM patients.
  • Diffusion metrics, including fractional anisotropy (FA), were analyzed.
Keywords:
Cervical spondylotic myelopathyDiffusion tensor imagingFollow-upLong-termMS-DTImJOA

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  • Clinical outcomes were assessed using the Modified Japanese Orthopedic Association (mJOA) scale, Neck Disability Index (NDI), and Visual Analogue Scale (VAS).

    • Main Results:

    • Significant differences in mJOA scores and FA values were observed between preoperative and postoperative timepoints up to two years.
    • Preoperative and postoperative FA values correlated significantly with respective mJOA scores.
    • No statistical relationship was found between NDI and mJOA or VAS scores.

    Conclusions:

    • ms-DTI can detect microstructural spinal cord changes and reflect functional improvement in CSM patients.
    • Maximum recovery in both FA values and mJOA scores was noted two years after surgery.
    • DTI metrics serve as sensitive, quantifiable biomarkers for evaluating CSM and spinal cord dysfunction.