What does a degenerated intervertebral disc (IVD) primarily restrict?

A degenerated intervertebral disc (IVD) primarily restricts segmental motion due to the loss of disc height and integrity, which can lead to reduced flexibility and mobility between the vertebrae it separates. Healthy intervertebral discs allow for proper movement and shock absorption during activities such as bending and twisting. When a disc degenerates, its ability to facilitate normal motion diminishes, often resulting in stiffness and pain. This restriction can contribute to further spinal issues, as the limited movement may affect surrounding joints and tissues. Understanding this aspect of disc degeneration is crucial for chiropractic care and treatment plans aimed at restoring proper spinal function and mobility.