Objective:

To report a case of cervical disc herniation with myeloradiculopathy in a patient with clinically probable alkaptonuria-related ochronosis.

Approach:

Key Findings:

• Intraoperatively, the intervertebral discs and nucleus pulposus were diffusely black-pigmented, suggesting ochronotic involvement.
• Postoperative improvement in limb numbness and gait stability was observed, as noted in the source.

Interpretation:

Limitations:

• Diagnosis was regarded as clinically probable due to lack of biochemical confirmation.
• Quantitative urinary homogentisic acid measurement and HGD genetic testing were not completed.

Conclusion:

Standard cervical decompression and fusion principles are effective for neurologic compromise.

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