Problems of the CNS: The Spinal Cord Flashcards
What is lumbosacral back pain (Low Back Pain)
Herniated nucleus pulposus
What are preventative measures
Good posture Proper lifting Exercise Ergonomics Equipment that can be used
What are nonsurgical management
Positioning Drug therapy Heat therapy Physical therapy Weight control Complementary and alternative therapies
Minimally invasive surgery
Percutaneous lumbar diskectomy
Thermodiskectomy
Laser-assisted laparoscopic lumbar diskectomy
Conventional open surgical procedures
Diskectomy
Laminectomy
Spinal fusion
Postoperative care
Prevention/assessment of complications Neurologic assessment; vital signs Patient’s ability to void Pain control Wound care CSF check Patient positioning/mobility Discharge teaching (Home care management Community resources)
Cervical neck surgical management
Anterior cervical diskectomy
Fusion
Spinal cord secondary injuries
Hemorrhage Metabolic (Inflammatory Processes) Cellular changes Vasoconstriction/Thrombosis Vasospasms/Edema Decreased spinal cord blood flow Spinal cord ischemia and hypoxia
Spinal cord injuries
Hyperflexion
Hyperextension
Axial loading or vertical compression (e.g., caused by jumping)
Excessive head rotation beyond its range
Penetration (e.g., caused by bullet or knife)
Frequently seen at C5 & C6
Deceleration motion
Head-on collisions
HYPERFLEXION
Hyperflexion results in
Compression of cord from fractures
Rupture or tearing of muscles or ligaments
Back and downward motion of the head
Rear-end collisions (Whiplash)
Diving accidents
HYPEREXTENSION
Hyperextension results in
Spinal cord is stretched and distorted resulting in contusion or ischemia
Displacement of spinal column
Tearing of the posterior ligaments & displacement of the spinal column
Occurs along with extension flexion injuries
ROTATION
Rotation results in
May disrupt ligaments, vessels, tissue, bone, and related organs
Vertical force on cord
Long fall landing on feet or buttocks
Burst fractures (Bony fragments into spinal canal)
Axial Loading
Axial loading results in
vertical compression that may result in such force on the vertebral body to cause a “burst” fracture with fragments that impinge upon the cord.
Knife or Gun shot wounds
Cut cord
PENETRATING
Penetrating results in
May partially or completely severe the vertebra, cord, ligaments, and blood supply or indirectly cause injury by heat or shock wave.
Total loss of sensory and motor function below level of injury
Complete injury
Types of complete injury
Tetraplegia (Quadriplegia)
Paraplegia
Paralysis of both arms and legs
Injury to cervical region C1-C8
Airway management
Paralysis of diaphragm if injury above C3
Requires wheelchair with breath, head or shoulder control
Tetraplegia
Paralysis of both legs
Injury to thoracolumbar region T2-L1
May have full use of arms
May require wheelchair or have some limited use lower extremities
May have some respiratory compromise (varying degrees of intercostals and abdominal muscle paralysis
Paraplegia
Mixed loss of voluntary motor activity and sensation below level of injury
Incomplete Injury
Types of incomplete injuries
Brown-Sequard Syndrome
Central Cord Syndrome
Anterior Cord Syndrome
Posterior Cord Syndrome
Transection/Damage of one side of spinal cord
Brown-Sequard
Below injured site cord
Loss voluntary motor function (same side as Injury)
Loss of pain, temperature, & sensation (opposite side of injury)
Brown-Sequard
Associated with cervical flexion/extension injury
Hematoma formation in center of cervical cord
Central Cord Syndrome
Motor weakness (upper extremities weaker than lower) Sensory function varies Varying degrees bowel and bladder dysfunction
Central Cord Syndrome