NEUROSURGERY Flashcards
- Surgical procedures utilized in the treatment of spasmodic torticollis include
I. upper cervical ventral rhizotomies and spinal accessory neurectomy
11. stereotactic thalamotomy
111. microvascular decompression of the spinal accessory nerve
IV. myotomy
A. I, 11,111
B. I, 111
C. 11, IV
D. IV
E. all of the above
E. all of the above
Which surgical approach for thoracic disk herniations is associated with the
highest rate of neurologic injury?
A. costotransversectomy
B. lateral extracavitary
C. midline laminectomy
D. transpedicular
E. transthoracic
C. Midline Laminectomy
- Most patients with intrinsic brainstem gliomas initially present with
A. cranial neuropathies
B. headache
C. hydrocephalus
D. nausea and vomiting
E. papilledema
A. cranial neuropathies
Each of the following is characteristic of complex regional pain syndrome I1
(causalgia) except
A. atrophic changes in the limb
B. hypesthesia
C. increased sweating
D. lack of major motor deficit
E. good relief with sympathetic block
B. hypesthesia
- Ventricular enlargement from choroid plexus papillomas can be secondary to
I. entrapment of cerebrospinal fluid (CSF)
11. decreased absorption of CSF from hemorrhage-induced arachnoiditis
111. tumor growth
IV. excessive production of CSF
A. I, 11, 111
B. I, 111
C. 11, IV
D. IV
E. all of the above
E. all of the above
- Which approach is favored for a patient with an 8 mm acoustic neuroma in
which hearing preservation is a goal?
A. middle fossa
B. suboccipital
C. translabyrinthine
A. middle fossa
- Uncinate seizures typically produce
A. auditory hallucinations
B. gustatory hallucinations
C. olfactory hallucinations
D. vertiginous sensations
E. visual seizures
C. olfactory hallucinations
- The radial nerve or one of its branches innervates each of the following except the
A. abductor pollicis longus
B. adductor pollicis
C. brachioradialis
D. extensor pollicis brevis
E. supinator
B. adductor pollicis
- Each of the following is true of intraventricular hemorrhage (IVH) in the newborn except
A. Periventricular hemorrhagic infarction is one sequela.
B. Posthemorrhagic hydrocephalus can result in persistent bradycardia and apneic spells.
C The capillary bed of the germinal matrix is composed of large irregular vessels.
D. The germinal matrix is the most common site of IVH in the full-term neonate.
E. The risk of IVH is greater in the preterm than in the term infant.
D. The germinal matrix is the most common site of IVH in the full-term neonate.
- The ossification centers of the odontoid consist of
A. one primary and two secondary centers
B. one secondary and three primary centers
C. three secondary and one primary center
D. two primary Centers
E. two primary and one secondary center
E. two primary and one secondary center
- The most common single-suture synostosis is
A. coronal
B. lambdoid
C. metopic
D. sagittal
E. sphenozygomatic
D. sagittal
- The most sensitive method for detecting carpal tunnel syndrome is
A. needle examination of the abductor pollicis brevis
B. needle examination of the first and second lumbricals
C motor amplitude of the median nerve
D. motor distal latency of the median nerve
E. palmar sensory conduction time of the median nerve
E. palmar sensory conduction time of the median nerve
- Coup contusions most commonly occur at the
A. cerebral convexities
B. frontal and temporal poles
C. orbital surface of the frontal lobes
D. posterior fossa
E. ventral surface of the temporal lobe
A. cerebral convexities
For questions 32 to 36, match the aneurysm with the sign or symptom it is most
likely to produce. Each response may be used once, more than once, or not at all.
A. anterior communicating artery aneurysm
B. intracavernous carotid aneurysm
C. middle cerebral artery aneurysm
D. ophthalmic artery aneurysm
E. posterior communicating artery aneurysm
- pupil-involving third nerve palsy
- seizures
- diabetes insipidus
- inferior nasal quadrantanopia
- exophthalmos
- The essential difference between a syringomyelic and a hydromyelic cavity is that the cavity in
A. hydromyelia is lined with ependymal cells, and in syringomyelia is not
B. hydromyelia is lined with choroid plexus, and in syringomyelia is not
C. syringomyelia contains CSF, and in hydromyelia contains serum
D. syringomyelia is focal, and in hydromyelia is more extensive
E. syringomyelia is an enlargement of the central canal, and in hydromyelia is an enlargement of the anterior median septum
For questions 38 to 45, identify the following structures. The figure illustrates the
A. hydromyelia is lined with ependymal cells, and in syringomyelia is not
- Each of the following is true of basilar impression except
A. Cerebellar and vestibular complaints typically overshadow motor and sensory complaints.
B. McGregor’s line is helpful in routine screening.
C. McRae’s line is helpful in clinical assessment.
D. Short necks and torticollis are common.
E. Vertebral artery anomalies are common.
A. Cerebellar and vestibular complaints typically overshadow motor and sensory complaints.
- Which of the following fractures has the poorest prognosis for healing without surgical intervention?
A. hangman’s
B. Jefferson’s fracture with 4 mm displacement of lateral masses
C. type l odontoid
D. type 11 odontoid
E. type I11 odontoid
D. type 11 odontoid
- Sprengel’s deformity refers to a(n)
A. congenital elevation of the scapula
B. congenital fusion of the upper cervical vertebrae
C. intravertebral disk herniation
D. postlaminectomy kyphosis
E. scoliosis resulting from tethering of the spinal cord
A. congenital elevation of the scapula
For questions 49 to 55, match the fracture type with the mechanism. Each response may be used once, more than once, or not at all.
Force Neck Posture!
A. flexing . flexed
B. compressing flexed
C. compressing neutral
D. distracting extended
E. flexing axially rotated
F. compressing laterally bent
- hangman’s fracture
- burst fracture
- unilateral facet dislocation
- teardrop fracture
- bilateral facet dislocation
- horizontal facet fracture
- Jefferson’s fracture
- Lateral recess stenosis in spondylosis is most commonly caused by
A. disk herniation
B. hypertrophied pedicles
C. inferior articular facet hypertrophy
D. ligamentum flavum hypertrophy
E. superior articular facet hypertrophy
E. superior articular facet hypertrophy
- In the treatment of chronic pain, the undesirable effect(s) that islare more common in stimulation of the periaqueductal gray than the periventricular gray region is lare
I. diplopia
11. oscillopsia
111. reduction of upgaze *
IV. sense of impending doom
A. I, 11, Ill
B. I, I11
C. 11, IV
D. IV
E. all of the above
E. all of the above
- '’Trilateral retinoblastoma” describes bilateral ocular retinoblastomas and a(n)
A. astrocytoma
B. medulloblastoma
C. neurofibroma
D. optic nerve sheath tumor
E. pineoblastoma
E. pineoblastoma
- Carotid artery ligation is absolutely contraindicated in patients with (a)
A. bilateral intracavernous carotid aneurysms
B. giant ophthalmic artery aneurym and evidence of vasospasm on arteriogram
C. giant ophthalmic artery aneurysm and extracranial atherosclerotic disease
D. intracavernous carotid artery aneurysm and sudden loss of extraocular
motility
E. traumatic dissecting aneurysm of the petrous carotid artery
B. giant ophthalmic artery aneurym and evidence of vasospasm on arteriogram
- The syndrome of weakness in one upper extremity followed by lower extremity weakness on the same side, then contralateral lower extremity weakness, is most characteristic of a meningioma involving the
A. clivus
B. falx
C. foramen magnum
D. olfactory groove
E. tuberculum sella
C. foramen magnum