23. SCI (spinal cord injury) Flashcards
Aetiology
80% traumatic injury (motor vehicle accidents, falls, hit by object, water related, other)
21% non-traumatic (tumour)
Diagnosis
X-ray, CT scan, MRI, physical observation (movement, sensation)
Symptomology of paraplegia
Damage to: spinal cord at/below T1
Affects: Lower portion of the body, legs and some/all of trunk
Results in: Partial or complete motor/sensory loss
Symptomology of tetra/quadriplegia
Damage to: Spinal cord above C7
Affects: Upper and lower portion of the body (legs, trunk, arms and hands)
Results in: Partial or complete motor/sensory loss
Symptomology of complete SCI
No neural messages can travel past the level of cord lesion
Results in: Total loss of movement and sensation below the level of lesion
Symptomology of incomplete SCI
Some parts of the spinal cord are spared at the level of lesion, allowing some neural messages through
Some movement and sensation below level of lesion. Amount of resultant function can be minimal (toe flickers) or substantial (ambulation)
Level of injury
Relates to lowest functioning level of spinal nerves (T8 level complete, T8 still functioning)
Level of injury can differ from level of bony damage (fracture at T8 but damage at T6 of spinal cord).
C1-C4 Tetraplegia
C1-C3: Allows head and neck movements
C4: Allows shoulder shrug.
Fully dependent in self-care, transfers and mobility.
C5 Tetraplegia
Allows shoulder control, elbow flexion, supination
C6 Tetraplegia
Allows wrist extension, pronation
Tenodesis action: Wrist extension and flexion is used to grab things. Encourage stronger grip, grasp and release
C7 Tetraplegia
Allows elbow extension, finger flexion/extension, wrist flexion
C8-T1 Tetraplegia/paraplegia
Allows MCP flexion, finger abduction and adduction, thumb movements.
Fully independent in self-care, transfers and mobility.
T1-T12: Thoracic paraplegia
Have: Innervation and function of all upper extremity muscles, including hand function
T2-T9: Variable trunk control
T10-T12: Have better trunk control
Lumbar/sacral paraplegia
Can achieve functioning independence for all mobility, self-care, bladder and bowel skills
Injury above T6:
Difficulties with: Temp. regulation, blood pressure, heart rate, circulation, breathing and coughing.
Have autonomic dysreflexia: If baller is too full, messages don’t travel all the way up to spinal cord. Reflex arc increases blood pressure. Bladder incontinence.