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Neck & Upper QuarterTraumatic / WhiplashModerate evidence

Whiplash-Associated Disorder (WAD)

Neck symptoms following acceleration–deceleration trauma, commonly a road traffic collision; classify severity and screen carefully for associated injury.

PNA Clinical Visual Atlas

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Open the related anatomy and pathology visuals.

Open Visual Atlas

Structures Involved

  • Cervical muscles, joints and other soft tissues; neurological structures may be involved in higher-grade presentations.

Mechanism / Why It Happens

  • Rapid acceleration–deceleration loading
  • Symptoms may emerge or evolve over hours after collision

Classification / Grades

  • WAD 0: no neck complaint or signs
  • WAD I: pain/stiffness without physical signs
  • WAD II: musculoskeletal signs
  • WAD III: neurological signs
  • WAD IV: fracture/dislocation (urgent medical pathway)

Symptoms

  • Neck pain or stiffness
  • Headache
  • Dizziness or concentration difficulty may coexist
  • Shoulder/upper-back discomfort

Clinical Signs

  • Reduced cervical ROM
  • Cervical tenderness
  • Possible neurological findings in WAD III

Red Flags & Referral Clues

  • Midline tenderness or high-risk trauma requiring Canadian C-Spine Rule assessment
  • Loss of consciousness, severe headache or repeated vomiting
  • Progressive weakness, sensory loss, gait change
  • Airway, swallowing, vascular or spinal cord symptoms

Diagnostic Examination

How to perform the tests — step by step

Each test includes patient setup, therapist position, hand placement, exact performance, positive finding and clinical interpretation.

Canadian C-Spine Rule (clinician decision aid)

Determine need for cervical spine imaging in alert, stable adults after blunt trauma; apply the complete validated rule.

Patient position

Assess alert, stable adult trauma patient; document high-risk factors, low-risk factors and ability to rotate 45° each way.

Therapist position

Position yourself to observe and stabilise the relevant segment without forcing the movement.

Hand placement

Use comfortable, controlled contact appropriate to the test; avoid painful compression or excessive force.

How to perform

  1. 1Explain the test and obtain consent.
  2. 2Screen contraindications and compare sides when appropriate.
  3. 3Perform the movement slowly and apply only the required resistance or stress.
  4. 4Record familiar symptom reproduction, range, strength and side-to-side difference.

Positive sign

Any high-risk criterion, or inability to rotate 45° when the rule indicates rotation testing.

Interpretation

Follow the rule and local trauma pathway; do not use in populations outside its validated scope.

Clinical note: A special test modifies clinical probability; it does not confirm a diagnosis in isolation.

Differential Diagnosis

  • Cervical fracture/dislocation
  • Concussion
  • Cervical radiculopathy
  • Cervical artery injury
  • Shoulder injury

Investigations / Imaging

  • Use validated trauma decision rules and urgent medical referral when indicated.
  • Imaging is determined by trauma risk and clinical findings, not pain intensity alone.

Complete Rehabilitation Plan

From protection to full function

Phase 1 — Protection, Education & Symptom-Guided Loading

Address safety, settle excessive irritability and maintain useful movement.

What to do

  • Exclude serious injury and classify WAD grade
  • Provide reassurance, clear information and encouragement to resume ordinary activity as tolerated
  • Use gentle active movement and avoid unnecessary immobilisation
  • Address sleep, headache, dizziness or concussion symptoms through appropriate referral pathways

Exercise dosage

  • Comfortable cervical ROM: 5–10 reps several times/day
  • Walking: begin with tolerable short bouts, build gradually

Progress when

  • Daily function is stable or improving.
  • No new red flags or progressive neurological deficit.
  • Exercise response returns to baseline by the following day.

Phase 2 — Mobility, Strength & Capacity

Restore the specific strength, mobility and control required by the condition.

What to do

  • Progress cervical and scapular endurance and strength
  • Graded aerobic activity and functional exposure
  • Treat associated vestibular or sensorimotor impairments when identified

Exercise dosage

  • Deep neck flexor endurance and scapular strengthening: 2–3 sets, 3 days/week
  • Aerobic activity: frequent low-to-moderate intensity bouts as tolerated

Progress when

  • Target movement and resistance are tolerated with good quality.
  • Functional capacity is improving without sustained symptom flare.
  • Progression is based on objective performance and patient goals.

Phase 3 — Functional Restoration & Return to Activity

Rebuild real-world, occupational or sporting capacity.

What to do

  • Progress driving, work and sport-specific demands
  • Increase lifting, rotation and sustained activity gradually
  • Coordinate multidisciplinary care for persistent disability or high distress

Exercise dosage

  • Task-specific strengthening 2–4 sets of 6–15 reps
  • Progress activity volume in small steps, avoiding repeated symptom exacerbation

Progress when

  • Condition-specific return criteria are met.
  • Full task exposure is completed progressively.
  • No clinically meaningful deterioration during the following 24 hours.

Manual Therapy — Role & Application

  • Gentle mobilization may be considered after serious injury is excluded and when it supports active recovery.
  • Avoid forceful cervical techniques in acute trauma or when vascular/neurological concerns exist.

Modalities — Use / Avoid

  • Analgesia decisions belong with the prescribing clinician.
  • Passive treatment should not replace advice, activity and graded exercise.

Return / Discharge Criteria

  • Serious injury excluded or managed
  • Functional neck movement and neurological status stable
  • Driving/work tasks tolerated safely
  • Patient confident with self-management

Common Clinical Mistakes

  • Applying routine neck treatment before trauma screening
  • Over-reassuring without reassessment
  • Prolonged immobilisation without indication
  • Ignoring concussion, dizziness or psychological distress

Clinical Pearls

  • Use the Canadian C-Spine Rule only in its intended population and setting.
  • Recovery is influenced by physical, cognitive and psychosocial factors; avoid deterministic predictions.

Continue learning

Connect assessment with management

Use the related PNA learning pathways to explore examination techniques and structured rehabilitation. A test result should always be interpreted alongside the history, full examination and clinical presentation.

Evidence sources

Use these sources as a starting point for clinical learning. A reference being listed here does not, by itself, establish that every recommendation on this page is strongly supported. Check the original publication, study design, population and limitations before applying findings to an individual patient.

Educational resource only. Tests and treatment plans must be adapted to the individual patient, irritability, comorbidities, surgical restrictions and local scope-of-practice requirements.