Can you provide a sample assessment for a patient with suspected cervical radiculopathy?

Cervical Radiculopathy Assessment Sample

A comprehensive assessment for suspected cervical radiculopathy requires clinical history, targeted physical examination with provocative testing, and selective imaging—with MRI cervical spine without contrast being the imaging modality of choice when radiculopathy symptoms are present.

Clinical History Components

Obtain specific details about:

• Pain characteristics: Neck pain radiating into the upper limb, particularly distal to the elbow 1
• Sensory symptoms: Paresthesias, numbness in dermatomal distribution
• Motor symptoms: Weakness in specific muscle groups
• Symptom onset: Acute versus chronic presentation
• Red flag symptoms: Fever, unexplained weight loss, history of cancer, progressive neurological deficits, bowel/bladder dysfunction 1

Critical caveat: Cervical radiculopathy is self-limiting in 75-90% of cases with conservative therapy, so aggressive workup may not be immediately necessary in uncomplicated presentations 1.

Physical Examination

Provocative Testing

The Spurling test should be performed in a staged manner 2:

1. First stage: Extension and lateral bending toward the symptomatic side
2. Second stage: If inconclusive, add axial compression to the above position

This staged approach elicits the highest pain scores (mean VAS 7) and most distal pain radiation (mean 2.5 on 0-3 scale) 2. The test is positive when it reproduces pain or tingling starting in the shoulder and radiating distally to the elbow 3.

Important limitations: The Spurling test has only 30% sensitivity but 93% specificity 3. This means it's not useful for screening but excellent for confirming radiculopathy when positive. A negative test does NOT rule out cervical radiculopathy.

Additional Physical Examination Elements

• Upper Limb Tension Test A: Most useful for ruling OUT cervical radiculopathy when negative 4
• Sensory examination: Test light touch and pinprick in dermatomal distributions
• Motor examination: Test key muscles for each nerve root (C5: deltoid, C6: biceps/wrist extensors, C7: triceps/wrist flexors, C8: finger flexors)
• Reflex testing: Biceps (C5-C6), brachioradialis (C6), triceps (C7)

Critical pitfall: Physical examination alone has limited diagnostic accuracy for cervical radiculopathy 1. A systematic review found limited evidence supporting physical tests compared to imaging or surgical reference standards 1.

Optimal Test Item Cluster

The most diagnostically useful combination includes four clinical variables with a positive likelihood ratio of 30.3 4:

• Positive Spurling test
• Positive Upper Limb Tension Test A
• Cervical rotation less than 60 degrees to the ipsilateral side
• Distraction test relieves symptoms

Electrodiagnostic Testing

Needle electromyography (EMG) with nerve conduction studies should be considered when diagnosis is uncertain 5, 6, 7.

EMG characteristics:

• Sensitivity: 50-71% (modest)
• Specificity: Approaching 100% (excellent) 7
• Optimal examination: 6 muscles including 1 paraspinal muscle provides high diagnostic yield while minimizing patient discomfort 6

EMG findings by chronicity 7:

• Acute lesions: Denervation potentials, reduced recruitment, preserved MUAP morphology
• Chronic lesions: Remodeled MUAPs with increased duration, amplitude, and phases; reduced recruitment

Key advantage: EMG combined with nerve conduction studies effectively excludes entrapment neuropathies (carpal tunnel, cubital tunnel) and polyneuropathy that frequently mimic radicular symptoms 5, 6.

Imaging

When Radiculopathy Symptoms Are Present

MRI cervical spine without IV contrast is the imaging modality of choice 1.

Rationale:

• Most sensitive for soft tissue abnormalities and nerve root impingement 1
• 88% accuracy for predicting surgical lesions versus 81% for CT myelography 1
• Superior for detecting disc herniation and nerve root compression 1

Contrast is NOT indicated unless red flag symptoms suggest infection, tumor, or inflammatory conditions 1.

When Only Neck Pain Without Radiculopathy

Plain radiographs (flexion-extension lateral views) are appropriate initial imaging 1:

• Useful for screening spondylosis, degenerative disc disease, malalignment
• 53.9% of adults show disc degenerative changes, increasing with age 1

MRI is NOT first-line in the absence of radiculopathy or red flags due to high false-positive rates in asymptomatic patients 1.

Alternative Imaging

CT myelography is reserved for:

• Patients who cannot undergo MRI (claustrophobia, pacemakers)
• Higher spatial resolution needed for surgical planning 1

CT without contrast offers superior bone detail but is less sensitive for nerve root compression 1.

Critical Integration Point

MRI findings must ALWAYS be interpreted in combination with clinical findings 1. MRI demonstrates:

• Frequent false-positives in asymptomatic patients 1
• Frequent false-negatives 1
• Abnormal levels that don't always correspond to clinical examination levels 1

Therefore, diagnosis requires concordance between clinical presentation and imaging findings—neither alone is sufficient 1.

Documentation Sample Structure

1. Chief complaint: Specific pain location and radiation pattern
2. History of present illness: Onset, duration, aggravating/relieving factors, red flags
3. Physical examination: Spurling test result, ULTT-A result, sensory/motor/reflex findings, test item cluster components
4. Assessment: Clinical diagnosis with suspected nerve root level
5. Plan: Conservative management versus imaging (MRI if radiculopathy confirmed clinically) versus EMG if diagnosis uncertain or to exclude mimics