What Is Cervical Spondylosis?

Cervical spondylosis is a broad term describing the spectrum of age-related degenerative changes affecting the cervical spine: intervertebral disc dehydration and height loss, osteophyte formation (bony spurs at vertebral end-plates and facet joints), facet joint hypertrophy and arthrosis, and changes to the uncovertebral joints of Luschka. These changes represent the normal biological response to decades of repetitive mechanical loading, and their prevalence is closely correlated with age — studies using MRI demonstrate that by age 60, over 90% of men and 80% of women show some radiographic evidence of cervical disc degeneration. The critical clinical question is not whether these changes exist, but whether they are clinically relevant to the patient's symptoms.

Why Does the Cervical Spine Degenerate?

The intervertebral disc undergoes predictable age-related changes beginning in the second decade of life. The nucleus pulposus — the gel-like central core responsible for distributing compressive loads — gradually dehydrates as proteoglycan content decreases and water-binding capacity diminishes. The disc loses height, and the annulus fibrosus (the fibrocartilaginous outer ring) bears increasing mechanical stress, developing circumferential tears and fissures. As disc height decreases, the surrounding joints and ligaments are subjected to altered loading — facet joints approximate and develop articular cartilage wear, and end-plate micro-damage stimulates periosteal new bone formation (osteophytes) in an attempt to increase the load-bearing surface area. These processes are accelerated by sustained poor posture, repetitive cervical loading, prior trauma, genetic predisposition, and systemic metabolic factors.

Clinical Presentations

Cervical spondylosis manifests along a spectrum. Many individuals remain entirely asymptomatic throughout their lives despite significant radiographic changes. When symptomatic, presentations include: axial neck pain from disc, facet, or uncovertebral joint involvement — typically a deep, aching pain with stiffness and reduced rotation; cervicogenic headache from upper cervical segment involvement; cervical radiculopathy when osteophytes or disc material narrow the neural foramen and compress a nerve root, producing arm pain, tingling, and weakness in a dermatomal or myotomal distribution; and cervical myelopathy in severe cases where the spinal canal is narrowed sufficiently to compress the spinal cord itself — a more serious presentation requiring urgent specialist assessment.

On imaging and clinical correlation: A patient may present with significant neck pain from a muscular or facet source, have an MRI showing "severe degenerative changes," and respond completely to manual therapy and exercise. Conversely, a patient may have minimal radiographic changes and severe refractory pain. The image is a snapshot of anatomy — it does not capture pain sensitivity, movement quality, or functional capacity. Clinical assessment remains the gold standard.

Management of Cervical Spondylosis

Conservative management is highly effective for the majority of symptomatic cervical spondylosis presentations. Exercise therapy — cervical strengthening, deep flexor activation, and thoracic mobility work — reduces pain and improves function with robust evidence. Manual therapy (cervical joint mobilisation, manipulation, and soft tissue techniques) provides meaningful pain relief and improves range of motion in axial neck pain presentations. Pain neuroscience education — reframing what imaging findings mean and do not mean — significantly reduces fear-avoidance behaviours that perpetuate disability. Ergonomic optimisation of workstation setup, sleeping position, and habitual posture reduces sustained provocative loading. For radiculopathy, specific cervical traction, nerve mobilisation, and targeted rehabilitation address neural sensitisation and motor deficits. Pharmacological management, corticosteroid injections, and surgical consultation (anterior cervical discectomy and fusion or laminoplasty) are considered when conservative management is insufficient for significant radiculopathy or myelopathy.

References & Further Reading

  1. Boden SD, et al. Abnormal magnetic-resonance scans of the cervical spine in asymptomatic subjects. J Bone Joint Surg Am. 1990;72(8):1178–1184.
  2. Gross AR, et al. Exercises for mechanical neck disorders. Cochrane Database Syst Rev. 2015;(1):CD004250.
  3. Young WF. Cervical spondylotic myelopathy: a common cause of spinal cord dysfunction in older persons. Am Fam Physician. 2000;62(5):1064–1070.