Cervical Spine (Week 3) Flashcards
Why is the cervical spine prone to injury?
Stability is sacrificed for mobility in the cervical spine, making it prone to injury.
How many vertebrae and facet joints are in the cervical spine?
7 vertebrae and 14 facet (synovial) joints.
How many cervical nerve roots are there, and where do they exit?
There are 8 cervical nerve roots that exit above the vertebral bodies.
What type of movement requires coupled motion between bilateral facet joints in the cervical spine?
Rotation and side flexion.
What is the normal lordotic curve of the cervical spine?
30° - 40°
Which cervical vertebrae have the greatest flexion-extension, and why is this significant?
C5-C6, making it the most commonly injured or degenerated level.
List possible symptoms of injury in the C5-C6 area.
Headache, fatigue, vertigo, poor concentration, hypertonia of the sympathetic nervous system, irritability, cognitive dysfunction, and cranial nerve dysfunction.
Which vertebrae make up the upper cervical spine?
C0 - C2
Are there discs in the upper cervical spine?
No, there are no discs between C0 and C2.
What are the principal motions of the atlanto-occipital joint (C0-C1)?
Flexion and extension (15°-20°), also called the “yes” motion, with side flexion of 10°.
What are the principal motions of the atlanto-axial joint (C1-C2)?
Rotation (50°), known as the “no” motion, and it is the most mobile articulation of the spine. It also allows 10° of flexion + extension and 5° of side flexion.
Describe the pivot (trochoidal) joint in the upper cervical spine.
It is the articulation between the anterior arch of the atlas (C1) and the odontoid process, supported by the transverse ligament.
What is the clinical significance of the first palpable spinous process, C2?
C2 is significant due to its relation to the vertebral-basilar artery (VBA), os odontoideum, and its vulnerability to rheumatoid arthritis.
Which vertebrae make up the lower cervical spine?
C3 - C7
What is the primary purpose of the cervical spinous and transverse processes?
They are present strictly for muscle attachment purposes.
How is lateral cervical musculature related to the brachial plexus?
It is closely involved with the brachial plexus, meaning issues in these muscles can affect brachial plexus pathology.
What can muscle imbalances in the cervical spine lead to?
They can cause pain and contribute to secondary headaches.
They can cause pain and contribute to secondary headaches.
Flexion, extension, and lateral flexion.
What are the available movements at the atlanto-axial joint (C1-C2)?
Flexion, extension, and rotation.
What movements are possible in the intracervical region (C2-C7)?
Flexion, extension, rotation, and lateral flexion.
What are the total available movements across the craniocervical region (C0-C7)?
Flexion, extension, rotation, and lateral flexion.
What is the resting position of the cervical spine?
Midway between flexion and extension.
What is the close-packed position of the cervical spine?
Full extension.
What is the capsular pattern of the cervical spine?
Side flexion and rotation are equally limited, followed by extension.
Do radicular symptoms extend down the arm in cases of C4 nerve root injury and above?
No, radicular symptoms do not go down the arm for C4 nerve root injury and above.
What type of headaches can originate from the cervical spine?
Cervicogenic headaches.
What is a primary headache disorder?
A disorder where the headache itself is the primary issue rather than a symptom of another underlying problem.
What role do some cervical spine muscles play in respiration?
They act as accessory respiratory muscles.
How does bone pain typically present in terms of onset?
Bone pain usually comes on immediately.
When can muscle or ligamentous pain appear after an injury?
It can appear immediately or occur several hours or days later.
Why is age relevant in case history for cervical issues?
Spondylosis is more common in individuals over 25, and osteoarthritis (OA) is prevalent in those over 65.
What should be considered when assessing symptom severity in the cervical spine?
Neurological severity should be considered.
What are WAD, “burners,” and “stingers” in relation to the cervical spine?
They are mechanisms of injury (MOI) that can indicate whiplash-associated disorders (WAD 1-4) and specific types of nerve trauma.
What are possible sources of referral pain in the cervical spine?
Cervicogenic headache and facet irritation (medial branch of dorsal primary rami).
What characterizes radiculopathy in the cervical spine?
Injury to nerve roots with unilateral motor and sensory symptoms in the upper limb, muscle weakness, sensory alteration, reflex hypoactivity, and sometimes focal activity.
What symptoms are associated with cervical disc herniations?
Severe neck pain, shoulder/scapula/arm pain, limited ROM, and increased pain with coughing, sneezing, jarring, or straining.
What symptoms suggest autonomic relevance in cervical spine assessment?
Sympathetic symptoms in the soft tissue of the neck lateral/anterior to the cervical vertebrae.
What are signs of cervical myelopathy?
Spastic weakness, paresthesia, possible incoordination in one or both lower limbs, and proprioceptive and/or sphincter dysfunction.
What additional symptoms may indicate dizziness, nausea, or visual disturbances in cervical assessment?
Primary headache, vertebrobasilar artery (VBA) obstruction, vestibular issues, or TIA/stroke.
What postural issues should be observed in the head and neck?
Look for upper crossed syndrome and head forward carriage (HFC).
What is the normal cervical spine curvature?
Typically 30°-40° lordotic curve.
What aspects of shoulder alignment should be checked in cervical assessment?
Observe shoulder levels for asymmetry.
What muscular issues might be observed in the cervical region?
Muscle spasm or asymmetry, torticollis, and nerve palsy.
What should be noted regarding bony or soft tissue contours?
Check for any abnormalities or asymmetries in contour.
What might ischemia in the cervical area indicate?
Possible restricted blood flow or vascular compromise.
Why is ergonomics important in cervical spine assessment?
Poor ergonomics can contribute to or exacerbate cervical spine issues.
What should be checked for during palpation in cervical assessment?
Inflammation, heat, and any deformities.
Why is the hyoid bone relevant in cervical spine palpation?
It is at the level of C3 and should move with swallowing.
What might muscle spasm or hypertonicity indicate in cervical palpation?
Potential overactivity or guarding in the muscles due to pain or injury.
Which vascular structure should be palpated in the cervical spine assessment?
The carotid artery.