Uncovertebral joints

Articulationes uncovertebrales

  • Eponym: Luschka's joints

Definition

Antoine Micheau

The uncovertebral joints (Luschka's joints), are found in the cervical spine from C3 to C7 vertebrae. These joints are formed between the uncinate processes of the vertebrae below and the lateral edges of the vertebral bodies above. The uncinate processes are hook-shaped projections that arise from the superior lateral borders of the vertebral bodies.

The uncovertebral joints have a synovial nature and play a crucial role in the stability and motion of the cervical spine, particularly in lateral bending and axial rotation. They also contribute to the formation of the medial wall of the intervertebral foramen, which is significant in the context of nerve root compression and cervical radiculopathy.

The uncovertebral joints develop and evolve with age, becoming more prominent and clinically significant as they degenerate, potentially leading to conditions such as cervical spondylosis and foraminal stenosis. Their anatomical position and relationship with adjacent structures, such as the vertebral artery and spinal nerves, make them important considerations in surgical approaches to the cervical spine.

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