Cervical extensor muscles involution in patients with symptomatic degenerative conditions: Comparative analysis and impact on alignment parameters.

Introduction: In recent years, researchers have studied the impact of lumbar paraspinal muscles' fatty infiltration (FI) on instability and pain. FI is also commonly found in patients with cervical spine conditions such as degenerative myelopathy and spondylosis. Increased FI in the cervical flexor and extensor muscles has been linked to higher pain and disability.