Giant cervical facet joint osteophyte causing myelopathy: illustrative case.

To the authors' knowledge, this is the first description of a cervical facet joint osteophyte presenting with cervical myelopathy. This case highlights the variability of cervical degenerative disease. The proposed mechanism suggests that asymmetric joint stress resulting from his occupation with the right arm elevated initiated a cycle of facet degeneration and medial osteophyte proliferation, progressively occluding the central canal and causing myelopathy. https://thejns.org/doi/10.3171/CASE25987.