Answer :
Final answer:
Approximately 50% of patients with cervical spondylolisthesis also have degenerative disc disease, a condition wherein the intervertebral discs deteriorate over time. (option d)
Explanation:
Approximately 50% of patients with cervical spondylolisthesis also have degenerative disc disease of the affected vertebrae. Degenerative disc disease involves the deterioration over time of the discs between each vertebra in the neck, which can cause pain in various parts of the body.
This condition is part of a broader category of spinal diseases that can affect any part of the vertebra, the intervertebral disk, and the surrounding soft tissue.
It is important to understand how the spine functions and the common conditions that can affect it, such as spondylolisthesis, whose complications may include degenerative changes like those seen with degenerative disc disease.
Hence , the answer is option d
