Cervical vertebral fractures

A cervical vertebral fracture is a break involving one or more of the bones in the neck. The cervical spine is made up of seven vertebrae, labeled C1 through C7.

These fractures range from relatively stable injuries that can heal with a collar to severe injuries associated with spinal instability, spinal cord compression, or neurologic injury.

Because the cervical spine protects the spinal cord and supports the head, fractures in this region require careful evaluation.

What Causes Cervical Spine Fractures?

Common causes include:

  • Motor vehicle accidents
  • Falls
  • Sports injuries
  • Diving injuries
  • Direct trauma
  • Osteoporosis
  • Cancer or other conditions that weaken bone

In older adults, even a relatively minor fall can cause a cervical fracture when bone quality is poor.

Symptoms of a Cervical Fracture

Possible symptoms include:

  • Neck pain
  • Neck stiffness
  • Muscle spasm
  • Pain with movement
  • Tenderness
  • Shoulder or arm pain
  • Numbness or tingling
  • Weakness
  • Difficulty walking
  • Loss of balance

Severe injuries may cause spinal cord dysfunction, including weakness or paralysis.

Why Are Cervical Fractures Important?

The cervical spine contains the spinal cord and allows a large amount of movement.

A fracture may cause problems through:

  • Bone displacement
  • Ligament disruption
  • Disc injury
  • Spinal instability
  • Spinal cord compression
  • Nerve root compression

Some fractures look relatively small on initial imaging but are unstable because of ligament or joint injury.

Upper Cervical Versus Lower Cervical Fractures

Cervical fractures are often divided into:

Upper cervical fractures involving C1 and C2.

Subaxial cervical fractures involving C3 through C7.

These regions have different anatomy and injury patterns.

C1 Fractures

The first cervical vertebra, or atlas, supports the skull.

Fractures of C1 may occur when force is transmitted downward through the head.

A classic C1 burst-type injury is sometimes called a Jefferson fracture.

Symptoms

Symptoms may include:

  • Upper neck pain
  • Pain at the base of the skull
  • Neck stiffness
  • Pain with head movement

Neurologic injury is less common than might be expected because the spinal canal is relatively large at C1.

Stability

A major concern is whether the injury has damaged the transverse ligament, which helps stabilize C1 relative to C2.

Stable fractures may be treated with a rigid cervical collar.

Unstable injuries may require surgical stabilization.

Odontoid Fractures

The odontoid, or dens, is a bony projection from C2 that acts as a pivot for rotation between C1 and C2.

Odontoid fractures are among the most common cervical fractures in older adults.

They are typically classified as Type I, Type II, or Type III.

Type II Odontoid Fracture

A Type II fracture occurs near the base of the dens.

This is particularly important because healing can be less reliable, especially in older adults.

Treatment depends on:

  • Age
  • Fracture displacement
  • Alignment
  • Bone quality
  • Neurologic function
  • Overall health
  • Likelihood of fracture healing

Options may include a rigid collar or surgical fixation.

Type III Odontoid Fracture

A Type III fracture extends into the body of C2.

These fractures generally have a better healing potential than Type II fractures because there is more cancellous bone available for healing.

Many can be treated without surgery if alignment is acceptable.

Hangman Fracture

A hangman fracture is an injury involving the pars or posterior elements of C2.

It usually results from hyperextension combined with axial loading.

Despite the name, modern hangman fractures are more commonly seen after motor vehicle accidents or falls.

Some are stable and can be treated with a collar.

Others involve significant displacement, disc injury, or instability at C2-C3 and may require surgery.

Subaxial Cervical Fractures

Fractures involving C3 through C7 are called subaxial cervical fractures.

These injuries can affect:

  • Vertebral bodies
  • Facet joints
  • Lamina
  • Pedicles
  • Spinous processes
  • Discs
  • Ligaments

The stability of the injury depends on how many structures are disrupted and whether the vertebrae remain properly aligned.

Compression Fractures

A cervical compression fracture may cause partial collapse of the vertebral body.

Stable fractures without neurologic injury may sometimes be treated with a collar.

More severe compression can lead to deformity or instability.

Burst Fractures

A burst fracture occurs when the vertebral body breaks in multiple directions.

Bone fragments may be pushed backward into the spinal canal.

This can cause:

  • Spinal cord compression
  • Neurologic injury
  • Instability
  • Kyphotic deformity

Treatment depends on alignment, spinal cord compression, and the integrity of surrounding ligaments and joints.

Facet Fractures

The facet joints help stabilize the cervical spine.

Facet fractures may be:

  • Nondisplaced
  • Displaced
  • Associated with dislocation
  • Associated with ligament injury

Some isolated facet fractures can be treated with a collar.

Others are unstable and require surgical fixation.

Facet Dislocation

A facet dislocation is more severe than an isolated fracture.

One or both facet joints may become locked in an abnormal position.

This can cause:

  • Severe instability
  • Spinal cord compression
  • Nerve root injury
  • Significant deformity

These injuries often require reduction and surgical stabilization.

Flexion-Distraction Injuries

A flexion-distraction injury occurs when the neck bends forward forcefully and the posterior structures of the spine are pulled apart.

This can tear:

  • Ligaments
  • Facet capsules
  • Disc
  • Posterior supporting structures

These injuries are often unstable even if the amount of bone fracture is relatively small.

Surgical stabilization is frequently required when the ligamentous structures have been significantly disrupted.

Extension Injuries

Hyperextension injuries can damage:

  • Vertebral bodies
  • Discs
  • Ligaments
  • Facets

Older patients with preexisting cervical stenosis may sustain spinal cord injury after hyperextension even without a major fracture.

This can produce central cord syndrome, which often affects the arms more than the legs.

Osteoporotic Cervical Fractures

Cervical fractures in older adults may occur after relatively low-energy falls.

Bone loss can make fractures more likely and can also complicate treatment.

Poor bone quality may increase the risk of:

  • Nonunion
  • Hardware loosening
  • Progressive deformity
  • Additional fractures

Treatment planning should therefore consider both the fracture and the underlying bone quality.

How Are Cervical Fractures Diagnosed?

Evaluation usually includes a neurologic examination and imaging.

CT Scan

CT is one of the most important studies for evaluating cervical fractures.

It provides detailed information about:

  • Fracture pattern
  • Bone displacement
  • Facet injury
  • Spinal alignment
  • Spinal canal compromise

MRI

MRI may be important when there is concern for:

  • Spinal cord injury
  • Disc disruption
  • Ligament injury
  • Epidural hematoma
  • Nerve compression

MRI is particularly useful when CT does not fully explain the suspected degree of instability.

X-Rays

X-rays can evaluate:

  • Alignment
  • Fracture healing
  • Progressive deformity

Flexion-extension X-rays may occasionally be used later in recovery when there is uncertainty about residual instability.

Stable Versus Unstable Cervical Fractures

A major goal of evaluation is determining whether the fracture is stable.

A stable fracture can maintain normal alignment during routine movement and healing.

An unstable fracture may allow abnormal movement that threatens the spinal cord.

Features that may suggest instability include:

  • Significant displacement
  • Facet dislocation
  • Major ligament disruption
  • Translation between vertebrae
  • Progressive kyphosis
  • Disc disruption
  • Multiple-column injury

Neurologic status is important, but a patient can have an unstable fracture and still have a normal neurologic examination.

Nonsurgical Treatment

Selected stable cervical fractures can be treated without surgery.

Treatment may include:

  • Rigid cervical collar
  • Activity modification
  • Pain medication
  • Follow-up imaging

The goal is to maintain alignment while the fracture heals.

Patients treated nonsurgically require follow-up because some fractures can gradually displace.

When Is Surgery Recommended?

Surgery is more likely to be recommended when there is:

  • Significant instability
  • Progressive displacement
  • Spinal cord compression
  • Neurologic injury
  • Facet dislocation
  • Major ligament disruption
  • Progressive deformity
  • Failure of the fracture to heal
  • Inability to maintain alignment in a collar

The exact operation depends on the location and pattern of injury.

Anterior Cervical Surgery

Some fractures are best treated through an anterior approach.

This may involve:

  • Discectomy
  • Corpectomy
  • Decompression
  • Cage placement
  • Plate fixation
  • Fusion

Anterior surgery can be particularly useful when compression or instability is located primarily in front of the spinal cord.

Posterior Cervical Surgery

Posterior fixation may involve:

  • Lateral mass screws
  • Pedicle screws
  • Rods
  • Fusion

This can provide strong stabilization for:

  • Unstable fractures
  • Facet injuries
  • Ligamentous injuries
  • Upper cervical fractures

Some complex injuries require both anterior and posterior surgery.

C1-C2 Fusion

Certain unstable C1 and C2 fractures may require C1-C2 posterior fusion.

This stabilizes the upper cervical spine but reduces some of the normal rotation between the head and neck.

It may be considered when there is:

  • Unstable odontoid fracture
  • Transverse ligament disruption
  • C1-C2 instability
  • Failure of nonsurgical treatment

Recovery After a Cervical Fracture

Recovery depends on:

  • Fracture type
  • Stability
  • Neurologic injury
  • Bone quality
  • Need for surgery
  • Age and overall health

Stable fractures may heal over several weeks to months.

Patients undergoing surgery may begin walking relatively early, but activity restrictions depend on the injury and procedure performed.

Physical therapy may later focus on:

  • Neck mobility
  • Strength
  • Balance
  • Walking
  • Return to activity

Can Cervical Fractures Fail to Heal?

Yes.

Failure of a fracture to heal is called nonunion.

This is particularly important with some Type II odontoid fractures.

Risk factors may include:

  • Older age
  • Poor bone quality
  • Smoking
  • Significant fracture displacement
  • Poor blood supply
  • Chronic instability

A symptomatic or unstable nonunion may require surgery.

Spinal Cord Injury

The most serious complication of a cervical fracture is injury to the spinal cord.

Possible symptoms include:

  • Arm weakness
  • Leg weakness
  • Numbness
  • Difficulty walking
  • Paralysis
  • Loss of bowel or bladder control

The severity depends on the level and extent of spinal cord injury.

Neurologic deficits after cervical trauma require urgent evaluation.

When Is a Cervical Fracture an Emergency?

Cervical fractures resulting from significant trauma should be evaluated promptly.

Emergency evaluation is especially important when there is:

  • New weakness
  • Numbness
  • Difficulty walking
  • Loss of balance
  • Paralysis
  • Severe neck deformity
  • Loss of bowel or bladder control
  • Severe neck pain after major trauma

Until an unstable cervical injury has been excluded, unnecessary neck movement should be avoided.

Outlook

Cervical vertebral fractures range from stable injuries that heal with a collar to severe fractures associated with spinal instability and spinal cord injury.

Treatment should be based on:

  • Fracture pattern
  • Spinal alignment
  • Ligament integrity
  • Neurologic function
  • Bone quality
  • Age and overall health

Stable fractures may be treated successfully without surgery.

Unstable injuries may require decompression, instrumentation, and fusion to protect the spinal cord, restore alignment, and allow the spine to heal in a stable position.

Related Topics

  • C1 Fracture
  • Odontoid Fracture
  • Hangman Fracture
  • Cervical Spinal Cord Injury
  • Cervical Instability
  • Cervical Corpectomy
  • Anterior Cervical Discectomy and Fusion
  • Posterior Cervical Fusion
  • C1-C2 Fusion