Cervical Radiculopathy

What is being pinched, and by what

Eight pairs of nerve roots leave the cervical spine, each through a bony opening between two vertebrae. Two things commonly narrow that opening.

One is a disc herniation: soft material escaping the disc and sitting against the root. This tends to arrive over days, often in younger patients, and it is the version that most often settles on its own.

The other is a bone spur, part of the arthritic change that accumulates in every neck over decades. This arrives over years, is more common later in life, and does not resorb. Both produce the same arm symptoms, but they behave differently over time, which is why the distinction matters when deciding whether to wait.

The fingers tell you the level

Cervical nerve roots have distinct territories, and patients are often more precise about them than they realise.

Numbness in the thumb and index finger with a weak biceps points at one level. Middle finger numbness with a weak triceps points at the next. Little finger numbness with a weak grip points lower again. Add the reflexes and a few strength tests and the examination usually identifies the root before any film is opened.

An MRI then confirms whether the anatomy at that level explains it. Ordering the film first and reasoning backward from it is the common error, because cervical degenerative changes are present in a great many people who have no symptoms at all.

What usually helps first

Most patients start non-operatively, and many do not need anything further.

Time does a substantial amount of the work, particularly for a soft disc herniation. Alongside it: activity modification, anti-inflammatory medication where appropriate, and physical therapy directed at the cervical spine rather than generic shoulder work.

A cervical epidural or selective nerve root injection can reduce inflammation around the root and, as in the lumbar spine, tells you something useful when it works. Good temporary relief from an injection at one level supports that level being the source.

Traction helps some patients and not others. It is worth a trial when symptoms ease with the arm raised overhead, which suggests the root responds to being unloaded.

When an operation becomes reasonable

Progressive weakness is the clearest indication. A biceps or a grip that is measurably weaker than it was a month ago is losing function, and that argues against continuing to wait.

Arm pain that stays disabling after a fair trial of non-operative care, in a patient whose imaging shows compression at the level the examination identified, is the more common scenario. The target is specific and the operation is focused on it.

Symptoms suggesting the spinal cord rather than a nerve root is involved, such as hand clumsiness, handwriting change or unsteadiness, are a different and more urgent situation. That is covered under cervical spinal stenosis and myelopathy.

What the operation would be

Two approaches address a compressed cervical root from the front, and both remove the disc and the material pressing on the nerve.

Cervical disc replacement puts an artificial disc in the space, keeping that segment moving. Anterior fusion joins the two vertebrae instead.

At Academy the starting point is motion preservation. Disc replacement suits patients whose facet joints, alignment and pathology support motion at that level. Fusion is the more reliable choice when they do not, which includes significant facet arthritis at the level, poor alignment, or instability. Candidacy is assessed from the imaging and the examination, and it is a reasonable thing to ask a surgeon to justify either way. The disc replacement vs fusion guide sets out the findings that decide it.

Posterior approaches, which reach the nerve from the back of the neck without entering the disc space, suit a narrower set of patients and can preserve the disc entirely.