Cervical spondylolisthesis (bone spur) is a bony change in the imaging of the cervical vertebrae and their surrounding bony joints, whereas cervical spondylosis is a syndrome.
When the cervical spine develops cervical spine osteophytes in the context of long-term chronic injury, leading to problems such as cervical nerve and vascular compression being compressed or causing vertebral instability, it progresses to become cervical spondylosis, and patients can present with varying degrees of dizziness, headache, abnormal limb sensation and movement disorders.