Musculoskeletal

Neck pain and cervical radiculopathy

Clinical Overview and When to Suspect Cervical Radiculopathy

— Annual incidence ~85 per 100,000; peak age 50–54

— Lifetime prevalence of neck pain ~50%; <1% has true radiculopathy

— Male predominance; right-sided slightly more common

— Older adults (>50): Foraminal stenosis from spondylosis (uncovertebral and facet osteophytes, disc height loss) — gradual, chronic

— Younger adults (<50): Soft lateral disc herniation — acute, often after minor strain

— Less common: tumor, infection, trauma, inflammatory arthritis (RA at C1–C2)

— Neck pain radiating into shoulder, scapula, arm, or hand

— Dermatomal numbness, weakness, or reflex loss

— Symptoms worsen with neck extension, ipsilateral rotation, or Valsalva

— Relief with the shoulder abduction (Bakody) sign — hand placed on top of head

— Myelopathic signs (gait disturbance, hand clumsiness, bowel/bladder dysfunction, Hoffman, Babinski)

— Progressive motor deficit or profound weakness (≤3/5)

— Fever, IV drug use, immunosuppression (epidural abscess)

— History of malignancy, unexplained weight loss, night pain (metastasis)

— Significant trauma (fracture)

— Atlantoaxial instability risk: RA, Down syndrome

Board pearl: Axial neck pain alone with no neurologic signs and no red flags does not warrant early imaging — defer MRI until 4–6 weeks of failed conservative therapy or red flags emerge.

Definition: Neck pain with radicular symptoms (pain, paresthesia, weakness) in a dermatomal/myotomal distribution from cervical nerve root compression or inflammation, most often C6 or C7.

Epidemiology:

Pathophysiology — two dominant mechanisms:

When to suspect on Step 3:

Step 3 ambulatory framing: Most cervical radiculopathy is self-limited — 75–90% improve within 4–6 weeks with conservative care. The family medicine task is to (1) rule out red flags, (2) treat conservatively, (3) re-evaluate at 4–6 weeks, (4) image and refer only when indicated.

Red flags requiring urgent workup:

Presentation Patterns and Key History

— C5 (C4–C5 disc): Lateral shoulder/deltoid pain; weakness of shoulder abduction; diminished biceps reflex; minimal sensory loss

— C6 (C5–C6 disc): Pain into lateral forearm; thumb/index numbness; weakness of biceps and wrist extension; diminished brachioradialis reflex

— C7 (C6–C7 disc, most common ~60%): Pain into posterior arm/dorsal forearm; middle finger numbness; weakness of triceps and wrist flexion; diminished triceps reflex

— C8 (C7–T1 disc): Pain into medial forearm; ring/small finger numbness; weakness of finger flexion and intrinsics; no reflex change

— T1: Medial arm pain; intrinsic hand weakness; possible Horner syndrome if very proximal

— Worse with extension, ipsilateral rotation, coughing, sneezing, Valsalva

— Better with shoulder abduction (Bakody sign) — offloads root tension

— Acute after minor twist/lift → suspect disc herniation

— Gradual over months in patient >50 → spondylotic foraminal stenosis

— Hand clumsiness, dropping objects, deteriorating handwriting → cervical myelopathy

— Gait imbalance, urinary urgency → myelopathy

— Bilateral arm symptoms or lower extremity involvement → central cord process

— Constitutional symptoms, prior cancer → metastatic disease

— IV drug use, recent bacteremia, fever → epidural abscess

— Morning stiffness >1 hr, peripheral arthritis → inflammatory (RA)

Key distinction: Radiculopathy = arm pain > neck pain with dermatomal features; mechanical neck pain = neck pain > arm pain, nondermatomal, no neuro deficits. Myelopathy = bilateral or below-the-lesion signs with UMN findings — a surgical emergency category, not a watchful-waiting case.

Classic complaint: Unilateral neck pain radiating into shoulder blade, lateral arm, forearm, or specific fingers, often with paresthesias.

Root-specific patterns (high-yield):

Aggravating/relieving factors:

Onset clues:

Critical history elements:

Occupational/functional history: Computer work, overhead labor, prior whiplash, tobacco use (accelerates disc degeneration).

Physical Exam Findings and Provocative Testing

— Posture (forward head, antalgic tilt away from painful side)

— Paraspinal and trapezius tenderness, spasm

— Range of motion: extension and ipsilateral rotation typically reproduce symptoms

— Motor: Deltoid (C5), biceps/wrist extension (C6), triceps/wrist flexion (C7), finger flexion (C8), intrinsics (T1) — graded 0–5

— Sensory: Light touch and pinprick by dermatome

— Reflexes: Biceps (C5–C6), brachioradialis (C6), triceps (C7); asymmetry is key

— Upper motor neuron screen (essential): Hoffman sign, inverted brachioradialis reflex, Babinski, clonus, hyperreflexia, gait

— Spurling test: Extension + ipsilateral rotation + axial compression reproduces radicular pain (specificity ~90%)

— Shoulder abduction (Bakody) relief sign: Symptoms diminish with hand on head

— Upper limb tension test (Elvey): Most sensitive (~97%) — good rule-out

— Neck distraction test: Manual cephalad traction relieves symptoms — high specificity

— Lhermitte sign: Electric shock down spine with neck flexion → myelopathy or MS

— Painful arc, positive Hawkins/Neer, no neck reproduction → shoulder

— Spurling positive, dermatomal sensory loss → cervical

— Vital signs (fever → infection)

— Palpate supraclavicular fossa (Pancoast tumor)

— Check for Horner syndrome (ptosis, miosis, anhidrosis) — apical lung tumor or C8/T1 lesion

— Lymphadenopathy, breast/prostate exam if malignancy suspected

Board pearl: Combination of positive Spurling + distraction relief + Bakody sign + upper limb tension test has a post-test probability >90% for cervical radiculopathy — clinical diagnosis often sufficient to start conservative therapy without imaging.

Inspection and palpation:

Neurologic exam — must document:

Provocative maneuvers (high specificity, modest sensitivity):

Shoulder vs cervical differentiation:

Hemodynamic/red-flag screen on exam:

Vascular check: Radial pulses, Adson maneuver if thoracic outlet suspected.

Diagnostic Workup — Initial Imaging and Labs

— Major trauma → CT cervical spine per NEXUS/Canadian C-spine rules

— Progressive or severe motor deficit

— Myelopathic signs (Hoffman, Babinski, gait, bladder)

— Fever, IV drug use, immunosuppression

— Cancer history, weight loss, night pain

— Age >50 with new neck pain and constitutional symptoms

— Failure of 4–6 weeks of conservative therapy

— First-line in trauma (if CT not indicated), suspected instability, RA, Down syndrome

— Flexion/extension views for instability if patient can cooperate safely

— Show alignment, fractures, spondylosis, disc space narrowing, osteophytes

— Imaging gold standard for radiculopathy and myelopathy

— Indicated after 4–6 weeks of failed conservative care, or immediately with red flags

— Add contrast if infection, tumor, or postoperative evaluation suspected

— Best for bone detail (fracture, foraminal osteophytes)

— Use when MRI contraindicated (pacemaker, severe claustrophobia)

— CT myelography for surgical planning if MRI unobtainable

— CBC, ESR, CRP if infection or inflammatory etiology suspected

— Blood cultures if epidural abscess suspected

— HbA1c, B12 if peripheral neuropathy is a competing diagnosis

— RF, anti-CCP if RA suspected; HLA-B27 if spondyloarthropathy

Step 3 management: A 45-year-old with 2 weeks of C7-pattern arm pain, intact strength, no red flags → NSAIDs, activity modification, reassurance, follow-up in 4–6 weeks — not MRI. Ordering early MRI is a frequent wrong-answer trap.

First principle: Cervical radiculopathy is a clinical diagnosis. Routine imaging in the first 4–6 weeks is not indicated absent red flags. Choosing Wisely (AAFP, NASS) explicitly recommends against early imaging.

When to image early (any one triggers workup):

Plain radiographs (3-view: AP, lateral, odontoid):

MRI cervical spine without contrast:

CT cervical spine:

Labs — selective, not routine:

ECG: Consider if left arm pain pattern atypical or with risk factors — rule out ACS masquerading as neck/arm pain.

Diagnostic Workup — Advanced and Confirmatory Studies

— Correlate findings with clinical level — asymptomatic disc bulges occur in >50% of adults over 40 and >85% over 60

— Surgical decisions require concordant clinical + imaging findings

— Look for foraminal stenosis, disc herniation, cord signal change (myelomalacia → urgent surgical referral)

— Indicated when:

— Diagnosis uncertain (radiculopathy vs peripheral neuropathy vs plexopathy)

— MRI findings don't match clinical level (e.g., multilevel changes)

— Symptoms persist >6 weeks with planned intervention

— Differentiating from carpal tunnel, ulnar neuropathy, brachial plexopathy

— Timing: Wait 3 weeks after symptom onset for denervation potentials (fibrillations, positive sharp waves) to appear

— Findings: Abnormal spontaneous activity in muscles of same myotome supplied by different peripheral nerves, with normal sensory NCS (preganglionic lesion preserves DRG)

— Both diagnostic and therapeutic

— Useful when imaging shows multilevel pathology to localize symptomatic level

— Suspected malignancy: MRI with contrast, CT chest/abdomen/pelvis, PET, age-appropriate cancer workup

— Suspected infection: MRI with contrast, blood cultures ×2, ESR/CRP, possible CT-guided biopsy

— Suspected RA: Flexion/extension cervical XR for atlantoaxial subluxation (>3 mm anterior atlantodental interval pathologic)

— Suspected vascular (vertebral artery dissection): CTA or MRA neck — consider in young patient with neck pain + neuro signs after chiropractic manipulation or trauma

Board pearl: A patient with MRI showing C5–C6 disc herniation but exam findings consistent with C7 distribution → order EMG/NCS to clarify level before any surgical referral. Treating the wrong level is a classic preventable error.

MRI interpretation pearls:

Electrodiagnostic studies (EMG/NCS):

Selective nerve root block (SNRB):

Specialized studies by suspected etiology:

Cardiac workup: Stress test or troponin if arm pain has atypical features and CV risk factors present.

Risk Stratification and First-Line Management Logic

— Track 1 — Uncomplicated radiculopathy (>90% of cases): No red flags, no myelopathy, no severe/progressive weakness → conservative care 6 weeks

— Track 2 — Persistent or refractory: Failed 6 weeks conservative → escalate (PT, epidural steroid injection, specialist referral)

— Track 3 — Surgical urgency: Myelopathy, progressive motor deficit, infection, malignancy, unstable fracture → urgent imaging + neurosurgery/orthopedic spine consult

— Activity modification: Avoid aggravating positions; bed rest is harmful — encourage normal activity

— Education and reassurance: Natural history is favorable; 75–90% improve in 4–6 weeks

— NSAIDs: First-line analgesic (see chunk 7)

— Short course muscle relaxant: For acute spasm, ≤2 weeks

— Physical therapy: Initiate within 2–4 weeks if not improving — cervical traction, deep neck flexor strengthening, postural correction, McKenzie-based protocols

— Heat/ice, topical agents

— Avoid: Prolonged cervical collar (>1–2 weeks causes deconditioning), opioids as first-line, manipulation in patients with myelopathy or vertebral artery risk

— 2 weeks: Reassess pain, function, red flags

— 4–6 weeks: If no improvement → MRI + PT intensification

— 6–12 weeks: If MRI confirms concordant pathology and pain persists → consider epidural steroid injection or surgical consult

— Discuss that surgery and non-surgical care have similar 1–2 year outcomes for most uncomplicated radiculopathies

— Surgery offers faster relief but does not improve long-term outcome in most cases

Step 3 management: The exam favors conservative care + scheduled follow-up at 4–6 weeks for uncomplicated radiculopathy. Ordering MRI, opioids, or surgical referral on initial visit without red flags is almost always the wrong answer.

Stratify into three management tracks:

Conservative care pillars (Track 1):

Decision points at follow-up:

Patient-centered shared decision-making:

Pharmacotherapy — First-Line Drug Regimen

— Ibuprofen 600–800 mg TID, naproxen 500 mg BID, or meloxicam 15 mg daily

— Use lowest effective dose, shortest duration (typically 2–4 weeks)

— Avoid in CKD (eGFR <30), active PUD, heart failure, anticoagulation

— Add PPI if age >65, prior GI bleed, or concurrent steroid/anticoagulant

— 650–1000 mg q6h (max 3 g/day in older adults, lower in liver disease)

— Modest efficacy but safer in renal disease and elderly

— Cyclobenzaprine 5 mg TID (avoid 10 mg dose in elderly — Beers list)

— Methocarbamol, tizanidine alternatives

— Use ≤2 weeks; sedation limits utility

— Avoid in elderly when possible (falls, anticholinergic burden)

— Evidence is limited but commonly used for acute severe radicular pain

— Methylprednisolone dose pack or prednisone 40–60 mg taper over 5–7 days

— Reserve for severe cases not responding to NSAIDs

— Gabapentin 300 mg titrated to 900–1800 mg/day in divided doses

— Pregabalin 75 mg BID

— Consider for persistent neuropathic pain beyond acute phase; evidence modest

— Renal dose adjustment essential

— Nortriptyline 10–25 mg qHS for chronic neuropathic pain

— Caution in elderly (anticholinergic)

— Not first-line. Per CDC 2022 guidelines, reserve for severe acute pain unresponsive to other measures

— If used: ≤3–5 days, immediate-release only, no concurrent benzodiazepines

— Document risk-benefit and check PDMP

Board pearl: Gabapentin and pregabalin are commonly tested for chronic neuropathic radicular pain, not acute uncomplicated radiculopathy. For an acute presentation, NSAID ± short muscle relaxant is the right first-line answer.

NSAIDs (first-line):

Acetaminophen:

Muscle relaxants (adjunct, short-term):

Oral corticosteroids:

Neuropathic agents:

Tricyclic antidepressants:

Topicals: Lidocaine 5% patch, diclofenac gel — adjuncts with low systemic absorption

Opioids:

Procedures and Surgical Management

— Indication: Radicular pain persisting >6 weeks despite conservative care with concordant MRI findings

— Provides short- to medium-term pain relief (weeks to months)

— Allows continued PT and may avoid surgery in some patients

— Risks: Rare but serious — vertebral artery injection, spinal cord infarct (transforaminal cervical), epidural hematoma, infection, transient hyperglycemia

— Hold anticoagulants per ASRA guidelines

— Absolute/urgent:

— Progressive motor deficit

— Cervical myelopathy (cord compression with signs)

— Cauda-equina-like syndrome (rare cervical)

— Infection (abscess), unstable fracture, tumor

— Elective:

— Persistent radicular pain >6–12 weeks despite conservative care + injection with concordant imaging

— Severe functional impairment

— Anterior cervical discectomy and fusion (ACDF): Most common; excellent outcome for single-level radiculopathy

— Cervical disc arthroplasty (artificial disc): Motion-preserving; appropriate in younger patients without significant facet arthropathy

— Posterior foraminotomy: For lateral disc/foraminal stenosis with predominantly arm symptoms; preserves motion, no fusion

— Laminectomy ± fusion: Multilevel myelopathy

— ~85–95% good-to-excellent relief of arm pain

— Neck pain relief less reliable

— Adjacent segment degeneration ~3% per year after fusion

— Tobacco cessation 6 weeks pre- and post-op improves fusion rates

— Optimize glycemic control (HbA1c <7.5–8%)

— Hold NSAIDs perioperatively (some surgeons; bone healing concern)

— DVT prophylaxis: Mechanical primarily; chemoprophylaxis individualized

CCS pearl: For a patient with progressive hand weakness, gait imbalance, and Hoffman sign → order MRI cervical spine without contrast, consult neurosurgery urgently, admit if severe — do not discharge home with outpatient follow-up.

Epidural steroid injection (ESI) — cervical transforaminal or interlaminar:

Surgical indications (refer to spine surgeon):

Surgical options:

Surgical outcomes:

Perioperative considerations (Step 3):

Special Populations — Elderly and Renal/Hepatic Impairment

— Spondylotic radiculopathy predominates over disc herniation

— Higher prevalence of concomitant cervical spondylotic myelopathy — screen carefully (Hoffman, gait, hand intrinsic atrophy)

— Comorbid osteoporosis, polypharmacy, falls risk affect treatment choices

— Atypical presentations: less pain, more functional decline, gait change

— Increased risk of GI bleed, AKI, HTN, heart failure exacerbation

— Use lowest dose, shortest duration; add PPI; monitor renal function and BP

— Avoid in CKD stage 3b–5, prior GI bleed, HF, on anticoagulation

— Topical NSAIDs preferred when feasible

— NSAIDs: Avoid if eGFR <30; use cautiously eGFR 30–60 with close monitoring

— Gabapentin/pregabalin: Reduce dose proportional to CrCl (gabapentin 100–300 mg daily if CrCl 15–29)

— Opioids: Morphine and codeine accumulate in renal failure → use hydromorphone or oxycodone with dose adjustment; avoid meperidine

— Cyclobenzaprine: Use cautiously; not extensively studied in CKD

— Acetaminophen: Max 2 g/day in cirrhosis; still preferred over NSAIDs

— NSAIDs: Avoid in cirrhosis (variceal bleed, hepatorenal syndrome risk)

— Muscle relaxants: Cyclobenzaprine hepatically metabolized — avoid in severe disease

— Gabapentin/pregabalin: Renally cleared — safer in hepatic disease

— Assess frailty (clinical frailty scale)

— Higher surgical morbidity but myelopathy generally requires intervention regardless of age — delayed surgery worsens neurologic outcome

— Optimize cardiac risk (RCRI), nutrition, glycemic control before elective surgery

— Counsel on home safety, hand-rail use, vision check

— Even minor falls can cause central cord syndrome in spondylotic patient

Step 3 management: Elderly woman with neck pain + new gait imbalance + dropping objects → think cervical spondylotic myelopathy, not benign mechanical neck pain. MRI urgently, spine surgery referral — do not prescribe just PT.

Older adults (≥65):

NSAID considerations in elderly:

Renal impairment:

Hepatic impairment:

Cervical spine procedures in elderly:

Falls and atlantoaxial considerations:

Special Populations — Pregnancy, Pediatrics, and Athletes

— Postural changes and breast enlargement worsen mechanical neck pain

— True radiculopathy in pregnancy is uncommon

— Imaging: MRI without gadolinium is safe in pregnancy when indicated; avoid gadolinium (reserved for life-threatening indications)

— Pharmacotherapy:

— Acetaminophen: First-line analgesic

— NSAIDs: Avoid after 20 weeks (fetal renal effects, oligohydramnios) and contraindicated after 30 weeks (premature ductus closure)

— Opioids: Avoid; risk of neonatal abstinence

— Muscle relaxants: Generally avoided; cyclobenzaprine category B but limited data

— Gabapentin: Use only if benefits outweigh risks

— Mainstays: PT, postural support, supportive pillows, heat, gentle exercise

— True cervical radiculopathy in children is rare — always investigate for alternative cause

— Differential includes torticollis, infection (retropharyngeal abscess, meningitis), trauma, juvenile arthritis, Chiari malformation, tumor

— Down syndrome: Atlantoaxial instability — screen with lateral cervical X-ray before sports clearance; symptoms (neck pain, gait change) warrant urgent MRI

— Sports clearance and Special Olympics previously required imaging; current guidance is symptom-based screening

— "Stingers/burners" — transient brachial plexus or root stretch injury; unilateral, resolves in minutes

— Bilateral arm symptoms or symptoms lasting >15 min → suspect cord injury, hold from play, image

— Return-to-play: Asymptomatic, full strength, full painless ROM

— Cervical stenosis (Torg ratio <0.8) increases transient quadriparesis risk

— Counsel on protective gear and tackling technique

Board pearl: Pregnant patient with neck/arm pain after 20 weeks → acetaminophen + PT, not NSAIDs. After 30 weeks, NSAIDs are contraindicated due to premature ductus arteriosus closure.

Pregnancy:

Postpartum: Lifting and breastfeeding posture commonly aggravate; ergonomic counseling helps

Pediatrics:

Adolescent athletes:

Older athletes / contact sports:

Complications and Adverse Outcomes

— Cervical myelopathy: Progression from radiculopathy or de novo; irreversible if untreated late — manifests as gait dysfunction, hand clumsiness, bowel/bladder changes

— Persistent neuropathic pain: Develops in 5–10%, may persist despite imaging resolution

— Chronic pain syndrome / central sensitization: Especially in patients with depression, catastrophizing, prolonged opioid use

— Muscle atrophy and permanent weakness: From prolonged severe compression

— Functional disability: Work loss, driving impairment

— Depression and anxiety: Bidirectional relationship with chronic pain

— NSAID adverse effects: GI bleed, AKI, HTN, MI/stroke risk with chronic use

— Opioid complications: Dependence, OD, constipation, hyperalgesia, hypogonadism

— Cyclobenzaprine/muscle relaxant: Sedation, falls in elderly, anticholinergic

— Oral steroid: Hyperglycemia, insomnia, mood changes, AVN with repeated courses, immunosuppression

— Cervical ESI:

— Rare but devastating: spinal cord infarct (transforaminal), vertebral artery injury, epidural hematoma, dural puncture

— More common: transient pain flare, vasovagal, hyperglycemia in diabetics

— Surgical complications:

— ACDF: Dysphagia (most common, usually transient), recurrent laryngeal nerve injury (hoarseness), esophageal injury, dural tear, pseudarthrosis (~5%), adjacent segment disease

— Posterior approach: Wound infection, axial neck pain, C5 palsy

— Disc arthroplasty: Heterotopic ossification, implant failure

Key distinction: Dysphagia in first 1–2 weeks after ACDF is common (up to 50%) and usually self-limited. Persistent dysphagia >6 weeks, fever, or neck swelling → evaluate for esophageal injury, hematoma, hardware issue.

Disease-related complications:

Treatment-related complications:

Post-surgical neurologic decline: Rare but requires immediate imaging and surgical re-exploration

Failed cervical surgery syndrome: Persistent or recurrent symptoms after surgery — multidisciplinary pain management

Cervical artery dissection: Rare association with high-velocity manipulation — counsel patients about this risk before chiropractic referral

When to Escalate Care — Consult and Inpatient Triage

— Acute traumatic neck injury with neurologic deficit

— Suspected spinal epidural abscess: fever + neck pain + neurologic signs ± IVDU/immunosuppression → emergent MRI with contrast, IV antibiotics after blood cultures, neurosurgery consult

— Spinal cord compression with rapidly progressive deficit

— Cauda-equina-equivalent cervical cord syndrome (bowel/bladder dysfunction)

— Major motor weakness (≤3/5) developing over hours to days

— Pathologic fracture from suspected metastasis

— Atlantoaxial instability with neurologic compromise (RA flare with cord signs)

— Myelopathic signs without rapid progression — neurosurgery or orthopedic spine

— Significant motor weakness (4/5 or worse) that is stable

— Imaging showing cord compression even if mild symptoms

— Failed conservative therapy with concordant imaging

— Persistent radicular pain limiting function

— Need for interventional pain procedure (ESI, SNRB)

— Neurosurgery / Ortho spine: Surgical evaluation, myelopathy, instability

— Pain management / Physiatry: Injections, multimodal pain plans, chronic pain

— Neurology: Diagnostic uncertainty, suspected MS, ALS, peripheral neuropathy

— Rheumatology: Suspected inflammatory arthritis

— Oncology: Known or suspected malignancy

— Infectious disease: Spinal infection

— Cord injury with respiratory compromise (high cervical lesion)

— Septic patient with epidural abscess and hemodynamic instability

— Postoperative airway compromise after anterior approach (hematoma)

CCS pearl: Febrile IV drug user with neck pain and arm weakness → admit, blood cultures × 2, MRI cervical spine with contrast STAT, empiric vancomycin + ceftriaxone, neurosurgery consult. Do not delay antibiotics waiting for biopsy if patient is septic.

Immediate ED referral / inpatient admission:

Urgent outpatient (within 1–2 weeks):

Routine referral (4–6+ weeks):

Specialty consult considerations:

ICU criteria:

Key Differentials — Same-Category (Musculoskeletal/Neurogenic) Causes

— Axial neck pain without dermatomal radiation, normal neuro exam

— Negative Spurling, no red flags

— Treat with NSAIDs, PT, reassurance

— Post-MVA, hyperextension-flexion injury

— Pain often delayed 24–48 h; may have headache, dizziness

— Most resolve in weeks; chronic in ~30%

— Deep aching neck pain referred to occiput, shoulder, scapula — non-dermatomal

— Worse with extension and rotation

— Diagnostic: facet medial branch block

— Bilateral hand clumsiness, gait imbalance, hyperreflexia, Hoffman, Babinski

— Surgical consult — different management track

— Parsonage-Turner (neuralgic amyotrophy): Severe shoulder pain followed by weakness in non-radicular distribution; often post-viral or post-vaccination; EMG localizes to plexus

— Traumatic plexopathy: After traction injury

— Carpal tunnel (median): Nocturnal thumb/index/middle finger paresthesias; Tinel/Phalen positive; NCS confirms

— Cubital tunnel (ulnar): Ring/small finger numbness; resembles C8

— Radial neuropathy: Wrist drop; resembles C7 motor

— Neurogenic (C8/T1 distribution), vascular, or disputed

— Provocative tests (Roos, Adson) and imaging

— Shoulder pain with overhead activity, painful arc

— No dermatomal pattern, no neuro deficit

Key distinction: Carpal tunnel and C6/C7 radiculopathy can both cause thumb–index numbness. Carpal tunnel = nocturnal, distal-only, positive Tinel/Phalen, abnormal sensory NCS. Radiculopathy = neck and proximal arm symptoms, dermatomal, normal sensory NCS (preganglionic). EMG resolves the question.

Cervical strain / mechanical neck pain:

Whiplash-associated disorder:

Cervical facet joint syndrome:

Cervical spondylotic myelopathy:

Brachial plexopathy:

Peripheral mononeuropathies (mimics):

Thoracic outlet syndrome:

Rotator cuff disease / shoulder impingement:

Adhesive capsulitis: Loss of passive ROM, distinguishes from radiculopathy

Occipital neuralgia: Sharp pain in occipital nerve distribution; tender greater occipital nerve

Key Differentials — Other-Category Causes

— Left arm/shoulder/jaw pain, especially with exertion, diaphoresis, dyspnea

— Women, diabetics, elderly may have atypical presentations

— Always include ECG ± troponin when arm pain pattern is atypical or risk factors present

— Tearing chest/back pain radiating to neck; blood pressure differential between arms

— CTA chest emergently

— Apical lung mass causing C8/T1 radiculopathy, Horner syndrome, shoulder pain

— Chest imaging in smokers with persistent shoulder/arm pain and weight loss

— Cervical spine metastasis from breast, lung, prostate, renal, thyroid, multiple myeloma

— Night pain, weight loss, known cancer

— Vertebral osteomyelitis / discitis: insidious neck pain, fever (only ~50%), elevated ESR/CRP

— Epidural abscess: triad of fever, back/neck pain, neuro deficit (only ~13% have all three)

— Meningitis: fever, photophobia, nuchal rigidity (passive flexion painful in all directions, unlike radiculopathy)

— RA with atlantoaxial subluxation

— Ankylosing spondylitis: morning stiffness, improves with activity, HLA-B27

— Polymyalgia rheumatica: bilateral shoulder/neck stiffness in age >50, elevated ESR

— Multiple sclerosis: Lhermitte sign, optic neuritis history, MRI brain lesions

— Amyotrophic lateral sclerosis: mixed UMN/LMN, no sensory loss, fasciculations

— Syringomyelia: cape-like sensory loss, hand atrophy

— Vertebral artery dissection: neck pain + posterior circulation stroke signs

Board pearl: A 60-year-old smoker with shoulder pain + Horner syndrome + C8/T1 weakness = Pancoast tumor until proven otherwise — order chest CT immediately, not cervical MRI alone.

Cardiac — acute coronary syndrome:

Aortic dissection:

Pancoast (superior sulcus) tumor:

Metastatic disease:

Infection:

Inflammatory:

Neurologic mimics:

Esophageal: GERD or esophageal spasm can cause referred neck/arm pain

Functional/psychogenic: Diagnosis of exclusion after thorough workup

Fibromyalgia: Diffuse pain with tender points, fatigue, sleep disturbance

Secondary Prevention and Long-Term Plan

— Tobacco cessation: Accelerates disc degeneration, impairs surgical healing; counsel and offer pharmacotherapy

— Obesity: Add load on cervical spine; weight management

— Sedentary work / poor ergonomics: Workstation evaluation (monitor at eye level, supportive chair, frequent breaks every 30 min)

— Sleep posture: Supportive pillow maintaining neutral cervical position; avoid prone sleeping

— Stress and depression: Treat — strongly associated with chronic neck pain

— Smartphone "tech neck": Counsel on screen height

— Deep cervical flexor strengthening

— Scapular stabilization (rhomboids, lower trapezius, serratus)

— Postural correction with cervical retraction exercises

— Aerobic exercise — improves chronic pain outcomes

— Yoga, Pilates — evidence-supported adjuncts

— Discontinue NSAIDs once acute pain resolves (avoid chronic use)

— Taper neuropathic agents after 3–6 months if pain stable

— Avoid chronic opioids

— Activity restrictions per surgeon (lifting limits 4–6 weeks)

— Smoking cessation crucial for fusion success

— Monitor for adjacent segment degeneration symptoms

— Hardware imaging at 6 weeks, 3 months, 1 year per surgeon protocol

— Natural history is favorable

— Imaging findings often don't dictate treatment

— Self-management strategies

— When to seek urgent re-evaluation (worsening weakness, bowel/bladder changes, gait change, fever)

— Update USPSTF-recommended screenings (cancer screening relevant given malignancy differential)

— Vaccinations

— Bone health (DEXA if appropriate)

Step 3 management: Long-term cervical radiculopathy follow-up should emphasize exercise therapy and ergonomic modification as the cornerstone of secondary prevention — not chronic medication or repeat imaging.

Modifiable risk factors to address:

Exercise and posture program (long-term):

Medication tapering:

Post-surgical long-term care:

Patient education:

Preventive health integration (Step 3):

Follow-Up, Monitoring, and Rehabilitation

— 2 weeks: Reassess pain, neurologic exam, red flags; medication tolerance; reinforce activity

— 4–6 weeks: If improving, continue plan; if not, escalate (MRI, PT intensification, consider ESI/specialist referral)

— 3 months: Outcome assessment; consider chronic pain pathway if persistent

— Pain (numeric rating scale or visual analog)

— Functional status (Neck Disability Index, validated tool)

— Strength, reflex, sensory exam at each visit

— Medication adverse effects (renal function on NSAIDs, mood/sedation on neuropathic agents)

— Blood pressure (NSAIDs raise BP)

— Sleep, mood, work function

— Manual therapy and mobilization

— Cervical traction (mechanical or manual) — modest evidence

— Therapeutic exercise: deep neck flexor, scapular, postural

— Modalities (heat, TENS) as adjuncts

— Education on home exercise program — most important long-term factor

— Most patients can continue working with modifications

— Avoid prolonged static neck posture, heavy lifting, overhead work during recovery

— Driving: avoid if significant weakness or sedating medication

— Early gentle ROM after ACDF (per surgeon)

— Cervical collar use varies by surgeon and construct

— Structured PT typically starts 4–6 weeks postoperatively

— Return to non-contact activity 6–12 weeks; contact sports often deferred 6 months or indefinitely after fusion

— New or worsening weakness, hand clumsiness

— Gait imbalance, falls

— Bowel or bladder dysfunction

— Fever, new constitutional symptoms

Board pearl: Documented serial neurologic exams are essential — progressive motor weakness on follow-up is an indication for urgent imaging and surgical referral, regardless of whether the original imaging was reassuring.

Initial follow-up schedule for uncomplicated radiculopathy:

Monitoring parameters:

Physical therapy program (4–6 weeks initial course):

Return-to-work / activity counseling:

Post-surgical rehabilitation:

Counseling on red flags requiring return:

Ethical, Legal, and Patient Safety Considerations

— Discuss risks/benefits of MRI (incidentalomas), ESI (rare but serious neurologic injury), and surgery (dysphagia, hoarseness, pseudarthrosis, adjacent-segment disease)

— Special consent considerations for cervical transforaminal injections — explicitly counsel about rare risk of spinal cord infarction

— Shared decision-making model: present surgical and non-surgical options with comparable long-term outcomes for uncomplicated radiculopathy

— Check prescription drug monitoring program (PDMP) before prescribing

— CDC 2022 guidelines: avoid as first-line, limit duration, no concurrent benzodiazepines, naloxone co-prescription for high-risk

— Document opioid risk assessment and discussion of non-opioid alternatives

— After ED or hospital visit for neck pain: Ensure outpatient follow-up within 1–2 weeks scheduled before discharge

— Communicate red-flag return precautions (worsening weakness, bowel/bladder, fever) in writing

— Reconciliation of medications across settings — duplicate NSAIDs, missed steroid tapers are common errors

— Post-operative discharge: Specific instructions on wound care, signs of hematoma (expanding neck swelling, dyspnea → 911), DVT prevention, follow-up appointment

— Document objective findings to support work restrictions

— Avoid prolonged disability — return to modified duty improves outcomes

— Independent medical examination obligations

— Counsel about rare but serious risk of vertebral artery dissection with high-velocity cervical manipulation

— Document discussion before referral

— Sedating medications (muscle relaxants, opioids, gabapentinoids) — counsel against driving

— Significant motor weakness or sensory loss in dominant arm — assess fitness

— Document objective resolution before return to contact sport

— Cervical stenosis or instability may preclude return

Step 3 management: Before discharging a patient with neck pain and arm radicular symptoms, document the neurologic exam, red-flag counseling, return precautions, and a scheduled follow-up date — this is the highest-yield medico-legal protection and the right Step 3 answer for safe transitions.

Informed consent for imaging and procedures:

Opioid stewardship:

Transitions of care — high-yield Step 3:

Workers' compensation and disability:

Manipulation risks:

Driving safety:

Athlete clearance:

High-Yield Associations and Rapid-Fire Clinical Facts

Board pearl: Memorize the C5/C6/C7 motor-sensory-reflex triads — they are the single most testable element of cervical radiculopathy on every USMLE step.

Most commonly affected root: C7 (~60%), then C6 (~20%), C8 (~10%), C5 (~10%)

Most common cause <50: Soft disc herniation

Most common cause >50: Spondylotic foraminal stenosis

Spurling test: High specificity, modest sensitivity — good rule-in

Upper limb tension test: Highest sensitivity — best rule-out

Shoulder abduction (Bakody) relief sign: Classic finding — patient drapes hand on head for relief

Hoffman sign: Flick distal phalanx of middle finger → thumb/index flexion = UMN sign suggesting myelopathy

Lhermitte sign: Shock down spine with neck flexion → cord pathology (MS, cervical myelopathy, B12 deficiency)

Natural history: 75–90% of uncomplicated cervical radiculopathies resolve in 4–6 weeks with conservative care

EMG timing: Wait ≥3 weeks for fibrillation potentials

Asymptomatic MRI abnormalities: Disc bulges in >50% of adults >40, >85% >60

C5 palsy: Post-op deltoid weakness after cervical decompression, usually transient

Horner + arm pain in smoker: Pancoast tumor

Atlantoaxial instability: RA, Down syndrome, achondroplasia

RA atlantodental interval: >3 mm (adults), >5 mm (children) = abnormal

Cord compression in cancer patient with neck pain: Emergent steroids (dexamethasone 10 mg IV) + MRI + neurosurgery/radiation oncology

Cervical epidural abscess triad: Fever + neck pain + neurologic deficit (complete in only ~13%)

CSM (cervical spondylotic myelopathy): Most common cause of spinal cord dysfunction in adults >55

ACDF dysphagia: Most common postop complication, usually resolves in weeks

Cervical disc arthroplasty: Motion-preserving alternative to ACDF

Choosing Wisely: No imaging in <6 weeks of nonspecific neck pain without red flags

NSAIDs in pregnancy: Avoid after 20 weeks, contraindicated after 30 weeks

Stinger / burner: Unilateral, transient brachial plexus or root stretch in athletes

Bilateral stingers or >15 min duration: Cord injury until proven otherwise

Board Question Stem Patterns

— 45-year-old with 2 weeks of neck pain radiating to middle finger after lifting; weak triceps; diminished triceps reflex; intact gait; no red flags

— Best next step: NSAIDs + activity modification + follow-up 4–6 weeks (NOT MRI, NOT opioids, NOT surgical referral)

— 65-year-old with gait imbalance, hand clumsiness, hyperreflexia, Hoffman sign

— Best next step: MRI cervical spine + neurosurgery referral

— 60-year-old smoker with shoulder/arm pain, ipsilateral ptosis/miosis, hand weakness, weight loss

— Best next step: Chest imaging (CT chest)

— IV drug user with fever, neck pain, progressive arm weakness

— Best next step: Blood cultures, MRI cervical spine with contrast, empiric antibiotics, neurosurgery consult

— Nocturnal hand paresthesias, positive Phalen, normal neck exam

— Best next step: NCS confirming median neuropathy at the wrist (not cervical MRI)

— Persistent radicular pain at 8 weeks despite NSAIDs and PT, concordant MRI

— Best next step: Epidural steroid injection or surgical consult

— Pregnant woman at 32 weeks with mechanical neck pain

— Best next step: Acetaminophen + PT (NOT ibuprofen — contraindicated after 30 weeks)

— Long-standing RA patient with neck pain and new gait change

— Best next step: Flexion/extension cervical X-ray + MRI; urgent rheum/neurosurg referral

— New dysphagia 5 days postoperatively, no fever, no swelling

— Best next step: Reassurance, soft diet, monitor (usually self-limited)

— Young patient with neck pain + posterior circulation stroke signs after chiropractic manipulation

— Best next step: CTA neck, antithrombotic therapy, neurology consult

Key distinction: Step 3 questions reward knowing when NOT to image and NOT to refer as much as recognizing red flags requiring escalation.

Pattern 1 — Classic outpatient C7 radiculopathy:

Pattern 2 — Cervical myelopathy:

Pattern 3 — Pancoast tumor:

Pattern 4 — Epidural abscess:

Pattern 5 — Carpal tunnel mimic:

Pattern 6 — Failed conservative care:

Pattern 7 — Pregnancy and pain:

Pattern 8 — RA with atlantoaxial:

Pattern 9 — Post-ACDF dysphagia:

Pattern 10 — Vertebral dissection:

One-Line Recap

Most cervical radiculopathy is a clinical diagnosis that resolves with 4–6 weeks of NSAIDs, activity modification, and physical therapy — reserve MRI and specialist referral for red flags (myelopathy, progressive weakness, infection, malignancy, trauma) or failure of conservative care.

Board pearl: When in doubt between "order MRI" and "conservative care with follow-up" on a Step 3 stem about new neck/arm pain without red flags, choose conservative care with scheduled follow-up — this is the highest-yield management answer in family/preventive medicine for cervical radiculopathy.

Diagnosis: Dermatomal pain + concordant motor/sensory/reflex findings (C7 most common); positive Spurling and shoulder-abduction relief signs support diagnosis; image only after 4–6 weeks of failed care or with red flags

First-line treatment: NSAIDs + short-course muscle relaxant if spasm + early PT + reassurance about favorable natural history; avoid opioids and prolonged collars; gabapentinoids reserved for persistent neuropathic pain

Escalation triggers: Myelopathy (Hoffman, gait change, hand clumsiness, bowel/bladder), progressive motor weakness, fever with IVDU, cancer history with night pain, or failure at 6 weeks → MRI ± EMG and spine surgery referral; consider epidural steroid injection before surgery for refractory pain with concordant imaging

Step 3 priorities: Document serial neurologic exams, counsel on red-flag return precautions, schedule structured follow-up before discharge, avoid opioids, address modifiable risk factors (tobacco, ergonomics, posture, weight, mood), and use shared decision-making when discussing surgical vs non-surgical options given equivalent long-term outcomes for most uncomplicated radiculopathies