Spinal Cord Injury Flashcards
Anterior Cord Syndrome
an incomplete lesion that results from compression and damage to the anterior part of the spinal cord or anterior spinal artery.
MOI: typically cervical flexion
Result: loss of motor function and pain and temperature sense below the lesion
Brown-Sequard’s Syndrome
An incomplete lesion of a hemisection of the spinal cord
MOI: typically a stab wound
Result: paralysis and loss of vibratory and position sense on the ipsilateral side, and loss of pain and temperature sense on the contralateral side.
Cauda Equina Syndrome
An injury that occurs below L1 spinal level where the long nerve roots transcend.
Result: flaccidity, areflexia, impairment of bowel and bladder function
Central Cord Syndrome
an incomplete lesion that results from compression and damage to the central portion of the spinal cord.
MOI: usually cervical hyperextension.
Result: UE > LE involvement, motor > sensory
Posterior Cord Syndrome
A relatively rare syndrome that is caused by compression of the posterior spinal artery
Result: loss of proprioception, two point discrimination, and stereognosis
ASIA A
Complete: no sensory or motor function is preserved in sacral segments S4-S5
ASIA B
Sensory Incomplete: sensory but not motor function is preserved below the neurologic level and extends through sacral segments S4-S5
ASIA C
Motor Incomplete: motor function is preserved below the neurologic level, and most key muscles below neurologic level have a muscle grade less than 3
ASIA D
Motor Incomplete: Motor function is preserved below the neurologic level and most key muscles below the neurologic level have a muscle grade greater than or equal to 3
ASIA E
Normal: sensory and motor functions are normal
Motor Level
determined by the most caudal key muscles that have muscle strength of 3 or greater with the superior segment tested as normal or 5
Motor index scoring
testing each key muscle using the 0-5 scoring, with total points of 25 per extremity for a total possible score of 100
Sensory level
determined by the most caudal dermatome with a normal score of 2/2 for pinprick and light touch
Heterotopic Ossification (Ectopic Bone)
spontaneous formation of bone in the soft tissues
Orthostatic Hypotension
characterized by a decrease in systolic blood pressure greater than 20 mmHg or a decrease in diastolic blood pressure greater than 10 mmHg after moving from supine to sitting position
C1-C5 Injury - Functional Outcomes
Dependent 100%
C5 = max assist for bed mobility, dependent for everything else
C6 Injury - Functional Outcomes
Bed Mobility: min assist Transfers: min assist with sliding board Weight shifts: Mod I to Min A Wheelchair Management: Min to Mod A for smooth terrain ROM/Positioning: Mod A to Mod I with all Feeding: Mod I with adaptive equipment Grooming: Mod I with adaptive equipment
C7-C8 Injury - Functional Outcomes
Bed Mobility: Independent
Transfers: Mod I to independent with sliding board
Weight shifts: Mod I
Wheelchair Management: Mod I with smooth terrain
ROM/Positioning: Min A
Feeding: Mod I with adaptive equipment (C7)
Grooming: Mod I
Paraplegia - Functional Outcomes
Bed Mobility: Independent Transfers: Independent Weight Shifts: Mod I Wheelchair Management: Independent to min A with curbs ROM/Positioning: Independent Feeding: Independent Grooming: Independent
Myelotomy
A surgical procedure that severs certain tracts within the spinal cord in order to decrease spasticity and improve function
Neurectomy
removal of a segment of a nerve in order to decrease spasticity and improve function
Neurogenic nonreflexive bladder
the bladder is flaccid as a result of cauda equina or conus medullaris lesion. The sacral reflex arc is damaged
Neurogenic reflexive bladder
The bladder empties reflexively for a patient with an injury above the level of T12. The sacral reflex arc remains intact
Neurologic level
the lowest segment of the spinal cord with intact strength and sensation with a muscle grade of fair
Paradoxical breathing
A form of abnormal breathing that is common in tetraplegia where the abdomen rises and the chest is pulled inward during inspiration. On expiration the abdomen falls and the chest expands
Rhizotomy
resection of the sensory component of a spinal nerve in order to decrease spasticity and improve functino
Sacral sparing
an incomplete lesion where some of the innermost tracts remain innervated, leaving sensation of the saddle area, movement of the toe flexors, and rectal sphincter contraction
Spinal shock
a physiologic response that occurs between 30 to 60 minutes after trauma to the spinal cord and can last up to several weeks, presenting with total flaccid paralysis and loss of all reflexes below the level of the injury
Tenodesis
tight finger flexors in combination with wrist extension to produce a form of grasp
Tenotomy
a release of a tendon in order to decrease spasticity and improve function
Zone of preservation
describes poor or trace motor or sensory function for up to three levels below the neurologic level of injury