Neck Pain with Radiating Pain

Presentation focuses on the impairment-based diagnosis of neck pain with radiating pain.

Lateral Foraminal Stenosis
- Accounts for 70% to 75% of cervical radiculopathy cases.
- Result of space-occupying lesion within the intervertebral foramen.
- Causes:
- Changes to disc height.
- Osteophyte formation from facet or uncovertebral joints.
- Leads to reduced space for nerve root exit.
Herniated Nucleus Pulposus
- Less common cause of cervical radiculopathy.
- Unique anatomical features make it less vulnerable than lumbar spine injury.

Important to consider additional diagnoses including:
- Estrogenic diagnoses.
- Serious neuromusculoskeletal conditions (e.g., spinal fractures, disruption of cervical stabilization structures).
Distinguishing symptoms of cervical radiculopathy vs. cervical myelopathy:
- Radiculopathy: typically unilateral symptoms.
- Myelopathy: can present bilaterally.
Thorough neurological examination indicated to differentiate between upper vs. lower motor neuron presentations.
- Hyperreflexia and positive pathological reflexes suggest cervical myelopathy.

Consider other impairment-based diagnoses, upper quarter musculoskeletal conditions, including:
- Neck pain with mobility impairments.
- Neck pain with coordination impairments.
- Neck pain with headaches.
Other pain sources:
- Rotator cuff related shoulder pain.
- Thoracic outlet syndrome.
- Lateral epicondylalgia.
- Radial nerve entrapment.
- Carpal tunnel syndrome.

Common structures involved: nerve root and disc (especially in cases of herniated discs).
Dominant pain mechanism for extremity symptoms: Neuropathic Pain
- Can present as burning, shooting, or electric shock-like sensations, but may also feel sharp or achy.
- Symptoms may include paresthesias, numbness, weakness, or simply pain.
Delayed onset of neuropathic pain or symptoms that worsen post-examination.
Sleep disturbances and psychological effects of neuropathic pain.

Symptoms from lateral foraminal stenosis usually have a gradual onset due to degenerative changes.
Symptoms from disc herniations may have immediate/evolving onset.
Various factors affect symptom behavior, including:
- Severity and irritability of symptoms.
- Patient's subjective reports may vary based on underlying cause.

Lateral Foraminal Stenosis:
- Aggravating factors involve:
- Cervical extension.
- Ipsilateral rotation and side bending.
- Axial compression.
- Symptoms can peripheralize, meaning distal symptoms in the extremity worsen.
- Easing factors include:
- Cervical flexion.
- Contralateral rotation.
- Axial distraction.
Disc Herniations:
- Aggravating positions include cervical flexion or protraction, causing increased tensile forces on the disc and nerve root.
- Easing factors may involve cervical extension or retraction, alleviating tension on the posterior annulus.
- Directional Preference:
- Position of the neck during symptom centralization (positive response).

Initial Screening:
- Determine appropriateness for physical therapy vs. additional medical evaluation.
- Assess vital signs, especially if cardiovascular comorbidities present.
Neurological Exam:
- Essential for determining baseline and monitoring neurological decline.
- Evaluating for progressive worsening necessitates referral for medical evaluation.
Diagnostic Validity:
- Tests have better validity for ruling in cervical radiculopathy than ruling out.
- Constituents: dermatomes, myotomes, reflexes to improve positive likelihood ratios.
Orthopedic Tests:
- Common examinations include Spurling A, distraction test, and arm squeeze test.
- Arm squeeze test has adequate validity to rule in cervical radiculopathy if positive.
- Lifetime Rate of Negative Features:
- Alone and within broader assessment context provides insights.
Neurodynamic Testing:
- Median nerve bias testing is effective for diagnostic screening.
Diagnostic Cluster:
- Wainner cervical radiculopathy cluster criteria:
- Positive ULTTA neural tension test.
- Ipsilateral cervical rotation < 60 degrees.
- Positive distraction test.
- Positive Spurling A.
- Outcomes regarding likelihood ratios influencing diagnostic confidence.

Generally favorable, with a self-limiting resolution in most cases (70% to 90% without surgery).
Factors affecting prognosis include:
- Baseline pain intensity.
- Self-reported disability.
- Psychological factors (e.g., pain catastrophization).
- Age, previous health history, regular exercise participation, prior neck pain, musculoskeletal disorders.
Condition Staging:
- Factors should extend beyond time since injury; also include severity, irritability, stage of healing.
- Understand tissue healing timeframes.

Guide interventions based on identified impairments and clinical practice guidelines.
Acute Stage Treatments (high irritability):
- Educational collar use, exercises for mobilization and stabilization, short-term use of low-level laser therapy.
Chronic Stage Treatments:
- Education, exercise (stretching, strengthening), manual therapy techniques, intermittent traction.
- Coordination and endurance training for deep neck flexors.
- Emphasis on ergonomic adjustments (increased lumbar lordosis, standing desks).

Developed by Nicole Raney for mechanical traction success:
- Criteria: symptom peripheralization with PA testing, positive shoulder abduction test, age over 55, positive ULLTA, positive distraction test.
- Probability of success based on meeting 3-4 criteria.
Caution with Clinical Prediction Rules:
- Should not be solely relied upon without supporting clinical evidence.
Consider imaging only in the context of evaluating progressive neurological decline or lack of progress in treatment after 4-6 weeks.