The uncovertebral joints (joints of Luschka) are paired lateral joints at C3-C7 formed by the uncinate processes and the adjacent vertebral body, becoming synovial joints by adolescence through disc degeneration fissuring. They guide cervical motion and protect against disc herniation laterally. Osteophytes at the uncovertebral joints from degeneration narrow the neuroforamen, producing cervical foraminal stenosis and radiculopathy.
Uncovertebral osteophytes are the most common cause of cervical foraminal stenosis producing radiculopathy — they are best seen on oblique radiographs and CT where they narrow the neuroforamen. Anterior cervical discectomy removes the disc and uncovertebral joints, decompressing the foramen. Posterior foraminotomy directly enlarges the foramen from behind.
Luschka joint osteophyte narrowing the neuroforamen producing cervical radiculopathy managed with ACDF or posterior cervical foraminotomy.
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