S3_L3: Spina Bifida Flashcards
Most common birth defect
Congenital heart defects (cardiac anomalies)
Second most common birth defects
Spinal dysraphism, spina bifida, neural tube defect
Refers to complete absence of skin and sac with exposure of the muscle and presence of a dysplastic spinal cord without evidence of a covering.
Rachischisis
Caused by tissue attachments that limit the movement of the spinal cord within the spinal column
Tethered Cord Syndrome
It results in the abnormal stretching and thinning of the spinal cord.
Tethered Cord Syndrome
Additional: 20-50% of children with spina bifida defects that are repaired shortly after birth will require surgery to untether spinal cord.
Arnold Chiari Type II Malformation refers to the caudal displacement or herniation into the cervical spinal canal of the medulla and lower pons, causing an elongation of what two structures?
4th ventricle and cerebellar vermis
Neurogenic Sphincter Dysfunction
- Voiding reflex arc is intact
- Low intravesical pressure
- Results from a thoracic lesion
- Emptying is incomplete, leading to
overdistention and retrograde flow
A. Hypertonic Bladder
B. Hypotonic Bladder
- A
- B
- A
- B
Neurogenic Sphincter Dysfunction
- Results from a sacral lesion, LMNL
- High intravesical pressure leading to reflux
- Weak or absent detrusor muscle
contraction - Prone to infections (i.e., UTI)
A. Hypertonic Bladder
B. Hypotonic Bladder
- B
- A
- B
- B
Neurogenic Sphincter Dysfunction
- Spastic bladder
- Detrusor contractions are uninhibited
due to loss of central control - High level of affectation
- Leads to incontinence
A. Hypertonic Bladder
B. Hypotonic Bladder
- A
- A
- A
- A
Detrusor-Sphincter Dyssynergia refers to the specific severe disturbance of the voiding function. The bladder and sphincter contractions occur
simultaneously, resulting in a low intravesical pressure.
A. Only the 1st statement is true
B. Only the 2nd statement is true
C. Both statements are true
D. Both statements are false
A. Only the 1st statement is true
Results in a high intravesical pressure
Studies have demonstrated that taking this substance periconceptually and during early pregnancy significantly reduces the occurrence and recurrence of neural tube deficits.
folic acid
Dosage of folic acid to take at least 1 month before conception and during the 1st trimester of pregnancy
400 μg or 0.4 mg
Dosage of folic acid to take if the mother already has a child with a neural tube defect or has history of a child with spina bifida
4 mg
A type of spina bifida that occurs when excessive fatty (lipomatous) tissue is within the vertebral canal and attaches to the spinal cord or filum terminale. It results in the development of motor and sensory deficits as the fatty tissue can pull the spinal cord, thereby causing deficits.
Lipomeningocele
A _____ team approach is most ideal to treat spina bifida.
Multidisciplinary
Note: Not only is the rehab team significant in treatment, but also the neurologists, pediatricians, urologists (to assess kidney problems), orthopedic surgeons, and neurosurgeons (for the closure).
A myelocele presents with a cystic cavity in front of the _____ wall of the spinal cord.
anterior
Prognosticating in myelomeningocele: Critical motor function present
- Lateral hamstring and peroneal muscles
- Hip flexor muscles
- Totally paralyzed lower limbs
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- E
- B
- A
Prognosticating in myelomeningocele: Critical motor function present
- Quadriceps muscles
- Mild loss of intrinsic foot muscles possible
- Medial hamstrings, anterior tibial muscles
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- C
- F
- D
Prognosticating in myelomeningocele - Range: Adult
- Crutches, community ambulation
- Community ambulation
- Wheelchair, household ambulation
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- D
- E
- B
Prognosticating in myelomeningocele - Range: Adult
- Normal
- Wheelchair
- Crutches household ambulation, wheelchair
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- F
- A
- C
Prognosticating in myelomeningocele - Activity: Adolescent
- 50% wheelchair, household ambulation with crutches
- Community ambulation, 50% crutch or cane
- Wheelchair, non functional ambulation
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- C
- E
- B
Prognosticating in myelomeningocele - Activity: Adolescent
- Limited endurance because of late foot deformities
- Wheelchair, no ambulation
- Community ambulation with crutches
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- F
- A
- D
Prognosticating in myelomeningocele - Mobility: School Age
- Community ambulation
- Crutches, braces, wheelchair
- Crutches, braces, household ambulation, wheelchair
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- E
- B
- C
Prognosticating in myelomeningocele - Mobility: School Age
- Standing brace, wheelchair
- Normal
- Crutches, braces, community
A. T12
B. L1-L2
C. L3-L4
D. L5
E. S1
F. S2-S3
- A
- F
- D