II. Definitions
- Cervical Radiculopathy
- Cervical nerve root irritation or compression resulting in upper extremity pain
III. Epidemiology
-
Incidence (U.S.)
- Men: 107 per 100,000/year
- Women: 64 per 100,000/year
- C5-C6 disc represents 90% of cervical disc lesions
- C6 nerve root impingement is most common (followed by C7 nerve root impingement)
IV. Anatomy
- See Cervical Spine Anatomy
- Cervical spinal nerves C1-C7 exit about their corresponding Vertebrae
- In transitioning to Thoracic Spine, C8 exits below the C7 Vertebra, and above T1
- In contrast, all thoracic and lumbar spinal nerves exit below their corresponding Vertebrae
- Lateral Herniation compresses the nerve root below
- Example: C5-6 disc Herniation compresses C6 root
V. Pathophysiology: Nerve Impingement Types
- Acute Cervical Disc Herniation (22% of radiculopathy cases overall)
- Acute, sudden onset of radiculopathy in younger patients
- Acute disc rupture leads to immediate radiculopathy
- Mechanism: Soft disc protrusion from nuclear Herniation
- Cervical compression
- Axial loading
- Hyperflexion
- Intraforaminal disc Herniation causes sensory radiculopathy (most common)
- Posterolateral disc Herniation causes weakness and Muscle atrophy
- Annulus fibrosus weakest posterolaterally
- Posterior longitudinal ligament also weak
- Central DIsc Herniation causes central cord compression and Myelopathy (least common)
- May result in numbness and weakness as well as Ataxia, urine changes
- Chronic Cervical Disc Disease (majority of patients)
- Gradual, progressive onset in older patients
- See Cervical Spine Anatomy
- See Spondylosis
- Mechanism: Cervical Spine degeneration associated with Osteoarthritis
- Hard disc lesion associated with Cervical Spondylosis
- Spurring at uncovertebral joint (posterior foramen) compresses Sensory Nerve roots
- Spurring at facet joints (anterior foramen) compresses Motor Nerve roots
VI. Symptoms
- See Neck Pain
- Neck tight or stiff
- Radicular Symptoms
- Characteristics
- Radicular pain (most common)
- Paresthesias
- Weakness (15% of patients)
- Radiation into Shoulder
- Radiation along Radial Nerve distribution into arm
- Does not often radiate below elbow
- Contrast with Paresthesias (distal radiation)
- Radiation into medial Scapula
- Interscapular pain is not of Shoulder origin
- Characteristics
- Provocative
- Worse with activity
- Worse on awakening in Morning
- Worse with neck extension
- Worse with coughing, sneezing, or straining
- Associated symptoms
VII. Signs
- See Neck Exam in Cervical Disc Disease
-
General
- Decreased Neck Range of Motion
- Neck flexion and extension
- Neck lateral bending to right and left
- Neck rotation to right and left
- Neck hyperextension elicits disc-related pain
- Pain on palpation
- Localized C-Spine tenderness
- Trigger Point tenderness over interscapular area
- Decreased Neck Range of Motion
- Cervical Disc Provocative Test
-
Cervical Radicular Pain Localization
- Localize involved cervical disc level (C4 to T1)
VIII. Differential Diagnosis: Common
IX. Differential Diagnosis: Focal Peripheral Neuropathy (Neuropraxia)
- See Overuse Syndromes of the Hand and Wrist
- Anterior interosseus nerve entrapment
- Weakness of pinch and grip, without associated pain
- Posterior interosseous nerve entrapment
- Weakness of fingers and wrist, WITH associated pain
- In contrast to C7 nerve root, posterior interosseous has no triceps or wrist flexion weakness
-
Radial Nerve entrapment (Radial Tunnel)
- Radial Forearm pain
-
Median Nerve entrapment (Carpal Tunnel)
- Paresthesias and numbness in radial 3.5 fingers
- In contrast to C6-7 nerve roots, Carpal Tunnel has no triceps or wrist extension weakness
-
Ulnar Nerve entrapment (Cubital Tunnel)
- Flexor digitorum profundus weakness with numbness and Paresthesias in ulnar 1.5 fingers
- In contrast to C8-T1 nerve roots, Cubital Tunnel has no thumb IP flexion weakness
- Brachial plexopathy (Personage-Turner Syndrome, Neuralgic Amyotrophy)
- Proximal arm pain, and ultimately weakness and sensory loss due to Brachial Plexus lesion
X. Differential Diagnosis: Serious and less common
- Vascular causes
- Arteriovenous Malformation
- Cardiac Chest Pain (Angina)
- Post-median sternotomy following thoracic surgery
- Spinal causes
- Miscellaneous causes
- Tumor
- Schwannoma
- Osteochondroma
- Pancoast Tumor
- Thyroid Cancer
- Esophageal Cancer
- Lymphoma
XI. Evaluation: Red Flags (consider alternative diagnosis)
XII. Imaging
XIII. Diagnostics
-
Electromyography (EMG)
- Consider in atypical Peripheral Neuropathy and distinguishing proximal from distal cause
XIV. Precautions
- Thorough Neurologic Exam is critical to identify deficits
- Cervical Radiculopathy with a neurologic deficit should be addressed promptly (consult Spine Surgery)
- Cervical nerve impingement is less forgiving than lumbar nerve impingement
- Prolonged impingement with neurologic deficits is a risk for persistent deficits
-
Cervical Spinal Stenosis may result in significant Spinal Cord Injury
- Upper Motor Neuron effects may include hyperreflexia and Clonus
- Assess proprioception and balance to help exclude cord compression
XV. Management: Acute radicular pain
- Start with history, examination and Cervical Spine XRay as described above
- Urgent Cervical Spine MRI and spine referral indications
- Red flags (see above)
- Progessive neurologic deficit
- Myelopathy
- Imaging findings demonstrate osseous destruction or instability signs
- Initiate conservative management
- Relative Rest
- Consider 1 week of neck immobilization such as in hard Cervical Collar (soft collar insufficient)
- Keeps head slightly flexed or in neutral position
- Kuijper (2009) BMJ 339:b3883 [PubMed]
- Acute disc injury (soft Cervical Disc Herniation)
- Allows healing of disc
- Chronic disc disease (hard Cervical Disc Herniation)
- Allows inflammation around disc to subside
- Consider 1 week of neck immobilization such as in hard Cervical Collar (soft collar insufficient)
- Local moist heat and massage
- Relieves tenderness and Muscle pain
- Acute Pain Management
- NSAIDs
- Muscle relaxants (e.g. Cyclobenzaprine or Flexeril)
- Variable efficacy
- Systemic Corticosteroids
- Epidural Corticosteroids more likely to be of benefit (see below)
- May offer short-term benefit (as evaluated day 10)
- However, no longterm benefit in pain, Disability or need for surgery
- Opioid Analgesics may be needed (e.g. Hydrocodone, Oxycodone)
- Relative Rest
- Reevaluate after 2 weeks and continue conservative therapy with precautions
- Diagnosis unclear with atypical symptoms suggestive of non-radicular Peripheral Neuropathy
- Consider Nerve Conduction Studies and EMG
- Progressive deficit found on re-evaluation (esp. beyond 3 weeks)
- C-Spine MRI
- Refer to Spine Surgery for progressive deficit
- Symptoms fail to improve
- Epidural Corticosteroid Injection
- Interlaminar injections reduce pain at 1 week, 1 month, 6 months
- Transforaminal injections reduce pain at 4 weeks
- Physical therapy 3-5 times per week for 4-6 weeks
- See Cervical Disc Herniation Rehabilitation
- Starting with gentle range of motion, Stretching, massage, TENS
- Stretching focused on neck and chest Muscles
- Later employ isometric strengthening and active range of motion
- Provides short term relief
- Does not change the course of the disc disease
- Cheng (2015) J Phys Ther Sci 3011-18 [PubMed]
- Consider empiric trial of Cervical Traction
- If no contraindications and acute muscular pain has resolved
- Ideal regimen (lying traction more likely to achieve, whereas over-the-door not as likely)
- Position neck flexion 15-25 degrees
- Intermittent traction 60 seconds, followed by 20 seconds relaxed force
- Start with 12 pounds and increase as tolerated
- References
- Consider starting medication to reduce daily pain
- Epidural Corticosteroid Injection
- Diagnosis unclear with atypical symptoms suggestive of non-radicular Peripheral Neuropathy
- Reevaluate after an additional 4 weeks and obtain Cervical Spine MRI for those failing to improve
- Positive Cervical Spine MRI
- Consider cervical epidural steroid injection or foraminal steroid injection
- Consider Spine Surgery or neurosurgery Consultation
- Negative Cervical Spine MRI
- Consider differential diagnosis (see above)
- Consider rheumatologic cause
- Positive Cervical Spine MRI
XVI. Management: General
- See Cervical Disc Herniation Management
- Conservative management indicated in most cases
- See Cervical Disc Herniation Rehabilitation
- No danger in observation (except where urgencies exist as describe above)
- Encourage patience
- Do not rush surgical intervention
- Surgery (5% of cases)
- Indications
- Pain and Disability intolerable
- Arm pain responds better than Neck Pain
- Major neurological deficit
- Pain and Disability intolerable
- Procedure: affected disc replaced
- Bone graft
- Arthrodesis
- Results
- Arm pain subsides immediately after surgery
- Osteophytes in foramen absorbed in 9-18 months
- Indications
XVII. Management: Return to Sports Participation
- Requirements to return to Contact Sports
- Healed anterior or lateral disc Herniation
- Discectomy and interbody solid fusion
- Lateral or central Herniation
- Neurologically intact
- Painless Range of Motion
- Relative Contraindications to Contact Sports
- Residual facet instability
- Absolute contraindications to Contact Sports
- Acute Central DIsc Herniations
- Neurologic deficit
- Pain or limited range of motion
- Spinal stenosis
XVIII. Complications
- See Cervical Spinal Stenosis
-
Cervical Spondylotic Myelopathy
- Results from hard disc lesion, Cervical Spondylosis (chronic) with gradual onset in patients over age 50 years
- Pressure of posterior osteophytes at anterior cord results in combined nerve root and cord symptoms
- Cervical Radiculopathy
- Gait difficulty
- Leg weakness and spasticity
XIX. Prognosis
- Most patients improve with conservative management (88% at 4 weeks)
- Recovery may require weeks to months
XX. Resources
- Treat Your Own Neck (Robin McKenzie)
Images: Related links to external sites (from Bing)
Related Studies
Concepts | Acquired Abnormality (T020) |
SnomedCT | 156630008, 240215009 |
English | Prolapse cerv intervert disc, Cervical disc herniation, extruded cervical intervertebral disc (diagnosis), herniated cervical intervertebral disc, bulging cervical intervertebral disc, herniated cervical disc, bulging cervical intervertebral disc (diagnosis), herniated cervical intervertebral disc (diagnosis), extruded cervical intervertebral disc, bulging cervical disc, extruded cervical disc, Slipped cervical disc, cervical disc slipped, Slipped;disc;cervical, cervical slip disc, cervical disc slip, slipped cervical disc, slip cervical disc, cervical slipped disc, Prolapsed cervical intervertebral disc, Prolapsed cervical intervertebral disc (disorder) |
Dutch | hernia van halswervel, dislocatie tussenwervelschijf cervicaal |
French | Hernie du disque cervical, Hernie discale cervicale |
German | Halswirbelhernie, verlagerte zervikale Bandscheibe |
Italian | Ernia del disco cervicale, Ernia di disco cervicale |
Portuguese | Herniação do disco cervical, Disco cervical deslocado |
Spanish | Hernia discal cervical, prolapso de disco intervertebral cervical (trastorno), prolapso de disco intervertebral cervical |
Japanese | 頚部椎間板すべり症, 頚椎椎間板ヘルニア, ケイブツイカンバンスベリショウ, ケイツイツイカンバンヘルニア |
Czech | Vyhřezlá krční ploténka, Herniace cervikální destičky |
Hungarian | Félrecsúszott nyaki discus, Nyaki discus herniatio |
Ontology: Cervical disc disorder with radiculopathy (C0451888)
Concepts | Disease or Syndrome (T047) |
ICD10 | M50.1 |
SnomedCT | 202757008 |
English | Cerv disc disord + radiculopth, Cervical disc disorder with radiculopathy, Cervical disc disorder with radiculopathy (disorder), compression; nerve root, in intervertebral disk disorder, cervical (etiology), compression; nerve root, in intervertebral disk disorder, cervical (manifestation) |
German | Zervikaler Bandscheibenschaden mit Radikulopathie |
Korean | 신경뿌리병증을 동반한 목뼈원판 장애 |
Dutch | compressie; zenuwwortel, door tussenwervelschijf, cervicaal, Aandoening van cervicale tussenwervelschijf met radiculopathie |
Spanish | discopatía cervical con radiculopatía (trastorno), discopatía cervical con radiculopatía |
Ontology: Cervical disc disorder (C0477633)
Concepts | Disease or Syndrome (T047) |
ICD10 | M50.9 , M50 |
SnomedCT | 425878001, 203832001 |
English | Cervical disc disord, unsp, Cervical disc disorder, unspecified, [X]Cervical disc disord, unsp, [X]Cervical disc disorder, unspecified, Cervical disc disorder (disorder), Cervical disc disorder, Cervical disc disorders, cervical disc disease, cervical disc diseases, disc disease cervical spine, disease cervical disc, disc disease cervical, cervical disc disease spine, cervical spine disc disease, Cervical disc disease, [X]Cervical disc disorder, unspecified (disorder), Cervical intervertebral disc disease |
Spanish | trastorno de disco intervertebral cervical (trastorno), trastorno de disco intervertebral cervical, [X]trastorno del disco intervertebral cervical, no especificado, [X]trastorno del disco intervertebral cervical, no especificado (trastorno) |
German | Zervikale Bandscheibenschaeden, Zervikaler Bandscheibenschaden, nicht naeher bezeichnet |
Korean | 상세불명의 목뼈원판 장애, 목뼈원판 장애 |
Dutch | Aandoening van cervicale tussenwervelschijf, niet gespecificeerd, Aandoeningen van cervicale tussenwervelschijf |
Ontology: Radiculopathy, Cervical (C0742186)
Concepts | Disease or Syndrome (T047) |
MSH | D011843 |
SnomedCT | 54404000 |
Spanish | lesión de la raíz de los nervios cervicales, neuropatía de raíz cervical, Radiculopatía cervical, lesión de la raíz de los nervios cervicales (trastorno), radiculopatía cervical (trastorno), radiculopatía cervical |
French | Radiculopathie cervicale |
English | cervical root lesions, cervical root lesions (diagnosis), cervical radiculopathy, cervical radiculopathy (diagnosis), nerve root and plexus disorder cervical root lesions, Cervical Radiculopathies, Cervical Radiculopathy, Radiculopathies, Cervical, cervical root lesion, radiculopathy cervical, Cervical root neuropathy, Cervical radiculopathy, Cervical radiculopathy (disorder), Cervical root lesion, neuropathy; radicular, cervical, Cervical root lesion, NOS, Radiculopathy, Cervical, lesion of cervical root, Lesion;cervical root |
Czech | cervikální radikulopatie, radikulopatie cervikální, Cervikální radikulopatie |
Norwegian | Cervikal radikulopati |
Dutch | cervicale radiculopathie, neuropathie; radiculair, cervicaal |
German | Radikulopathie der Halswirbel |
Hungarian | Nyaki radiculopathia |
Japanese | 頚髄神経根障害, ケイズイシンケイコンショウガイ |
Portuguese | Radiculopatia cervical |
Italian | Radicolopatia cervicale |