SAER 2002 Flashcards
A 32-year-old male runner presents to your office with foot pain for the last 3 weeks. He reports
severe pain on the bottom of his foot, which is worse with the first few steps in the morning after
getting out of bed. He has no history of trauma and previously ran up to 12 miles daily. His running
has been severely limited since this pain began. What is the most likely diagnosis?
(a) Morton’s neuroma
(b) Plantar fasciitis
(c) Tarsal tunnel syndrome
(d) Stress fracture
(b) Plantar fasciitis is classically most painful upon arising first thing in the morning, and is aggravated
by overuse or change in footwear. An S1 radiculopathy often presents with numbness and tingling
and has associated reflex changes and possibly weakness in the plantar flexors. Tarsal tunnel
syndrome is caused by compression of the posterior tibial nerve inferior to the medial malleolus. A
Morton’s neuroma causes plantar pain in the forefoot and is aggravated by wearing tight, restrictive
shoes.
A 67-year-old woman who had a left cortical stroke 12 months ago wishes to improve her arm and
hand function. She has good cognition. Sensation is only mildly decreased to light touch. Muscle
strength is shoulder flexion 4-/5, elbow flexion 3/5, elbow extension 3-/5, wrist extension 3-/5,
finger flexion 2/5, and finger extension 2-/5. Which technique is most likely to result in functional
improvement in this patient?
(a) Constraint-induced movement
(b) Proprioceptive neuromuscular facilitation
(c) Electromyographic biofeedback to wrist and arm extensors
(d) Electrical stimulation to finger flexors
(a) Constraint-induced movement is effective in persons more than a year after stroke if they have
preserved wrist extension and finger movement along with good sensation. Proprioceptive
neuromuscular facilitation is typically used during the acute phase of stroke and is not more
effective than other traditional treatments. EMG biofeedback has a mixed record but is probably a
good adjunctive treatment. Functional electrical stimulation appears to be useful in muscle
retraining but would probably not be applied to the finger flexors in this patient. No randomized,
controlled studies have compared these therapies for efficacy.
Trials on the use of glucosamine and chondroitin for knee and hip osteoarthritis have shown that
these compounds
(a) reduced subchondral sclerosis, as evidenced by x-ray.
(b) decreased proteoglycan synthesis in articular cartilage.
(c) had a moderate effect on pain symptoms.
(d) had an immediate effect on symptom severity
(c) A meta-analysis of randomized controlled studies on the treatment of knee and hip osteoarthritis
with glucosamine and chondroitin found moderate effects on symptoms. These effects take a
minimum of 4 weeks. Glucosamine and chondroitin are capable of increasing proteoglycan
synthesis in articular cartilage.
Which change is included in the revised edition of the American Spinal Injury Association (ASIA)
Impairment Scale, published in the year 2000?
(a) The zone of partial preservation (ZPP) is defined as the most rostral segment with sensory
function.
(b) The Functional Independence Measure (FIM) has been added to the standards.
(c) The definition of a motor incomplete injury requires some motor function more than 3 levels
below the motor level.
(d) The sensory exam now includes a 5-point scale to include sharp and dull sensations,
proprioception, and vibration.
(c) The 2000 revisions have clarified a few issues from the previous standards. For a person to receive
a classification of motor incomplete spinal cord injury (ASIA C or ASIA D) they must have either
1) voluntary anal sphincter contraction or 2) sacral sensory sparing with sparing of motor function
more than 3 levels below the motor level. Previously, the person needed only to have sparing more
than 2 levels below the motor level. The FIM was eliminated from the standards. The ZPP is to be
documented as the most caudal segment with some sensory and/or motor function. There has been
no change in the 3-point (0-2) scale for the sensory exam.
A 65-year-old brain tumor patient receiving inpatient rehabilitation develops nausea, fever, and
headache several hours after radiation therapy. You prescribe
(a) ceftriaxone.
(b) dexamethasone.
(c) nimodipine.
(d) sumatriptan.
(b) Radiation reactions may occur at any time during or after radiation therapy. Acute reactions that
occur within hours after the first dose are caused by edema, and manifested by headache, nausea,
vomiting, somnolence and fever. Worsening neurological symptoms may occur with dose fractions
greater than 2 Gray. Symptoms are preventable through use of corticosteroids, eg, dexamethasone 2
mg daily or twice daily.
Which group would NOT be included on a list of occupations with the largest incidences of low
back injuries that receive workman’s compensation?
(a) Truck drivers
(b) House painters
(c) Machine operators
(d) Nurses
(b) Alhough, house painters may be at risk for injury, machine operators, truck drivers, and nurses have
the greatest incidence in compensated low back pain injuries.
Which hypothesis does NOT explain a normal electromyograph (EMG) in a patient who has a lumbar radiculopathy? (a) Involvement of only the sensory root (b) Limited sampling of muscles (c) Oxycodone taken prior to the study (d) Timing of the study
(c) Pain medication has no effect on EMG findings. All the other choices can be an explanation for a
normal EMG in a patient who has a lumbar radiculopathy.
Which reflex is typically NOT seen in a normal 4-month-old infant?
(a) Extremities extend on the face side as the head is turned to the side.
(b) Fingers flex when the palm is touched.
(c) Extremities extend to the direction of displacement when center of gravity is displaced.
(d) Shoulder abduction, and shoulder, elbow, and finger extension occur when the neck is
suddenly extended.
(c) These options all describe reflexes. (a) asymmetric tonic neck reflex, (b) palmar grasp, and (d)
Moroare seen until a baby is about 6 months old. Protective extension or parachute reaction (c)
does not appear until after 6 months.
A 38-year-old drywall hanger presents with shoulder pain after falling onto the tip of his shoulder.
He felt immediate pain in the upper part of his shoulder, but no numbness or tingling in his arm. On
examination, he has a visible deformity on the superior aspect of his shoulder. He has pain with
horizontal adduction of his left arm across his chest and is having difficulty lifting his arm. His
passive range of motion is good. The best treatment for this patient would involve
(a) use of an arm sling for at least 4 weeks.
(b) referral to an orthopedic surgeon for surgical repair.
(c) physical therapy for Codman exercises.
(d) corticosteroid injection after 10 days.
(b) This patient has a grade 3 acromioclavicular separation. Grade 1 or 2 separations would not have a
visible deformity and would require weighted bilateral shoulder films. A grade 3 separation may
have good results with conservative care, but a young manual laborer should be referred for
surgical repair to ensure good results. Grade 4-6 separations should be surgically repaired. Patients
should only be placed in a sling for a few days until the pain subsides. This will decrease the
possibility of losing shoulder range of motion. The shoulder should be given a few days rest, and
physical therapy referral is not appropriate at this time. A corticosteroid injection is not the
treatment of choice and will not repair the separation.
Which factor is a prime determinant of successful return to work after traumatic brain injury?
(a) Presence of associated musculoskeletal injuries
(b) Glasgow Coma Scale score at 48 hours post injury
(c) Presence of post-injury depression
(d) Pre-injury occupation type
(b) There are several determinants to successful return to work for persons with traumatic brain
injuries. All studies have identified the severity of head injury as a primary factor in return to work;
the Glasgow Coma Scale is one of the robust measures of injury severity. Other factors include
preinjury work history, age, cognitive abilities, or motor limitations.
A 70-year-old woman complains of acute localized mid back pain. She has a non-focal neurologic
examination. An anteroposterior and lateral thoracic spine x-ray confirms your clinical suspicion of
an acute T8 compression fracture. Which recommendation would best help her to reduce her risk of
future fractures?
(a) Swimming laps 20-30 minutes daily
(b) Isotonic abdominal strengthening program
(c) A weight reduction diet
(d) Avoidance of tobacco use
(d) The National Osteoporosis Foundation (NOF) established guidelines to reduce risk of osteoporotic
fractures. These recommendations include, participating in weight bearing exercise, ingesting
adequate calcium (1200mg/day) and vitamin D (400-800IU), and avoiding tobacco use.
A 57-year-old woman complains of the onset of tingling in her feet about 2 weeks ago. She now has
muscle weakness of both legs and weakness in her handgrip. She is complaining of pain in the back
of both thighs. On examination, she is noted to have mild weakness of the orbicularis oculi
bilaterally, intact extraocular muscle movements, intact peripheral sensation, decreased grip strength
and lower limb strength measured at 3-/5. Biceps reflexes are present at 1+ and other reflexes are
absent. Immediate management measures would include
(a) oral multivitamins and folate.
(b) twice daily vital capacity testing.
(c) intrathecal steroid injection.
(d) serial erythrocyte sedimentation rates.
(b) This patient is most likely to have acute inflammatory demyelinating polyneuropathy of Guillain-
Barré syndrome. This syndrome presents with ascending symmetrical weakness, generally has mild
sensory involvement although pain complaints are prominent, and commonly spares extraocular
movements despite involvement of other cranial nerves. Management would include careful
monitoring of vital capacity, since respiratory muscle weakness could result in the need for
ventilation. Steroids by any route of administration have not been shown to be effective.
For persons with spinal cord injury who survive the first 24 hours, what is the leading cause of death the first year post-injury? (a) Pulmonary embolism (b) Pneumonia (c) Renal insufficiency (d) Nonischemic heart disease
(b) The leading cause of death for persons with spinal cord injury who survive more than 24 hours is
pulmonary dysfunction (pneumonia, adult respiratory distress syndrome) followed by nonischemic
heart disease, septicemia and pulmonary embolus.
Workers who participate in a cardiovascular training program have been found to
(a) communicate with their supervisors better.
(b) be more efficient.
(c) have better job performance evaluations.
(d) report fewer sick days.
(d) Workers who participated in a cardiovascular training program were compared to a control group.
Those in the training program reported 51% fewer sick days than controls despite no change in their
maximum oxygen consumption (VO2max).
An otherwise healthy elderly woman with history of osteoporosis presents with the acute onset of
focal thoracic spine pain. Your management program should include
(a) William’s flexion exercises.
(b) epidural steroid injections.
(c) spinal extension brace.
(d) steroid iontophoresis.
(c) Spinal flexion will increase pain related to vertebral compression fractures. An extension brace will
promote a position of comfort during the healing process. These braces may include a Jewett brace,
cruciform anterior spinal hyperextension brace, and a chairback or warm and form brace.
What is a common musculoskeletal complication of acute inflammatory demyelinating polyneuropathy? (a) Joint capsule contractures (b) Lumbar scoliosis (c) Achilles tendinitis (d) Two-joint muscle contractures
(d) Patients with acute inflammatory demyelinating polyneuropathy (AIDP) commonly develop painful
tightness in the two-joint muscles, including the hamstrings, tensor fascia lata, and gastrocnemius.
Actual joint capsule contracture is much less common. The vast majority of persons with AIDP
significantly improve and are unlikely to develop scoliosis as a result of muscle weakness. Tendon
inflammation is not a feature of AIDP.
In the emotional stages of recovery from spinal cord injury, most individuals
(a) have prolonged feelings of guilt or worthlessness.
(b) undergo a true depressive episode.
(c) experience bereavement.
(d) feel diminished interest or pleasure in almost all activities.
(c) Although the pattern of emotional reaction is unique to every person, coping with a spinal cord
injury normally involves sadness, yearning, and intense feelings of loss. While bereavement might
appear similar to depression, it does not ordinarily involve prolonged feelings of guilt,
worthlessness, self-reproach or thoughts of death as seen in depressive disorders. Because grieving
or bereavement is universal in the context of spinal cord injury, it is important to differentiate
bereavement from a depressive disorder.
A radical neck dissection for head and neck cancer, by definition, involves sacrifice of which nerve?
(a) Glossopharyngeal
(b) Hypoglossal
(c) Spinal accessory
(d) Auriculotemporal
(c) The external jugular vein, spinal accessory nerve, and sternocleidomastoid muscle are removed
during a radical neck dissection. Loss of the spinal accessory nerve leads to shoulder dysfunction
with long-term adverse functional sequelae.
A 42-year-old jackhammer operator presents with low back and left posterior-lateral thigh pain and
numbness that began at the end of his shift 1 week ago. He has been unable to return to his job since
the onset of pain. His physical examination reveals normal reflexes, strength, and sensory function
upon examination of both lower extremities. His pain is reproduced with forward flexion of the
lumbar spine and left straight leg raise. Your recommendations include
(a) ice, muscle relaxants, x-rays, 10 days of bedrest.
(b) nonsteroidal anti-inflammatory drugs, muscle relaxants, lumbar corset, return to work.
(c) nonsteroidal anti-inflammatory drugs, education in positions of comfort, physical therapy.
(d) narcotic pain medications, lumbar corset, lumbar discography.
(c) Nonsteroidal medications, education in lumbar positions of comfort, and physical therapy constitute
the standard of care in conservative management of lumbar radiculopathy. Ten days of bedrest is no
longer recommended, since the effects of immobilization can further impair recovery. Limited or
relative rest can help relieve repetitive trauma while acute pain management interventions are
underway. A lumbar corset may help with pain in the first few days but immediate return to work
while relying on a lumbar corset does aid in recovery. Jackhammer operators are exposed to a great
deal of vibration, which increases an individual’s risk of disc injury. When a disc injury is
suspected in this population, return to a modified work description avoiding lifting, bending,
twisting, and vibration should be recommended. Lumbar discography should be reserved for
individuals who have exhausted conservative management and are contemplating a spine
procedure.
A 27-year-old previously healthy woman awoke with severe right scapular and shoulder pain 4
weeks ago. There is no history of trauma. She has no constitutional symptoms. Three weeks ago,
her pain began resolving and scapular winging developed. Electromyography (EMG) reveals 3+
positive waves and fibrillations with markedly decreased recruitment in the right serratus anterior.
EMG of the right deltoid, biceps, pronator teres, abductor pollicis brevis, first dorsal interosseous,
and cervical paraspinals is normal, as is EMG of the left serratus anterior. The most likely
diagnosis is
(a) systemic lupus erythematosus.
(b) compression neuropathy of the dorsal scapular nerve.
(c) idiopathic brachial neuropathy (neuralgic amyotrophy).
(d) C5 radiculopathy due to cervical disc herniation.
(c) This is a classic history for neuralgic amyotrophy or idiopathic brachial plexopathy involving the
long thoracic nerve. In 30% of patients with neuralgic amyotrophy, EMG abnormalities can be
found in the asymptomatic upper extremity; however, the absence of such findings does not
obviously exclude the diagnosis. The findings are inconsistent with the other diagnoses.
Which statement is true regarding spinal cord injury without obvious radiologic abnormality in
children?
(a) It most commonly occurs in lumbar rather than cervical injuries.
(b) There is a lower incidence in younger children.
(c) It is associated with larger head size and relatively weak neck muscles.
(d) Neurologic impairmen, if it occurs, is usually apparent within 2 to 4 hours post-injury.
(c) Spinal cord injury without obvious radiologic abnormality (SCIWORA) usually occurs in young
children, is thought to be due to the relatively large head size and weak neck muscles, and motor
abnormalities may not be apparent for up to several days. SCIWORA most commonly occurs in
the cervical region.
Lumbar spondylolisthesis is the term for slippage of one vertebral body on the adjacent body
below. All of the following statements are true EXCEPT
(a) It is graded 0-4, by the percentage of slippage of the superior body on the inferior one.
(b) It is caused by a fracture or defect in the pars interarticularis.
(c) A TLSO brace is the best method to stabilize an unstable spondylolisthesis.
(d) A spondylolisthesis may cause neurologic compromise of the cauda equina.
(c) Spondylolisthesis in the lumbar spine is a common finding, occurring 70% of the time at L5-S1 and
25% at L4-5. It is caused by a defect or fracture in the pars interarticularis and is graded 0-4 on the
basis of the amount of slippage of one body on the other. It may indeed lead to spinal stenosis and
compromise of the cauda equina. A spinal orthosis will not be effective in stabilizing this defect but
can be useful in reducing lumbar lordosis, decreasing pain, and reducing gravitational forces on the
slippage.
A 45-year-old woman with multiple sclerosis reports that her fatigue is interfering with the
activities of daily living. You prescribe an energy conservation program and
(a) amantadine (Symmetrel).
(b) valproic acid (Depakote).
(c) beta-interferon (Avonex).
(d) adrenocorticotropic hormone (ACTH).
(a) Fatigue is a common, limiting symptom in patients with multiple sclerosis. Behavioral techniques
such as energy conservation and well-planned rest periods are often required. Amantadine is
traditionally the first choice; however, pemoline may provide relief. Beta-interferon and ACTH are
more disease-modifying agents used during periods of acute exacerbation.
On the 4th day after revision of his left total hip arthroplasty with an anterior approach, your patient
complains of pain in the left thigh after bridging in bed for the bedpan. You notice that his left leg is
externally rotated and appears shorter than his right. The LEAST likely factor contributing to your
patient’s predicament is
(a) a surgically malpositioned implant.
(b) aseptic loosening of the implant.
(c) inadherence to precautions.
(d) profound soft tissue weakness.
(b) Aseptic loosening is seen 10 years after implant of prosthesis, the other choices are common
etiologies for dislocations during the first few weeks after implant.
A nonambulatory 15-year-old boy with spinal muscular atrophy is requesting a new power
wheelchair after a growth spurt. An important feature of the wheelchair prescription will be
(a) a solid seat with foam padding.
(b) extra room at each side to allow for growth.
(c) seat back below the scapular ridge.
(d) back-slanted seat with pommel.
(a) Because of growth and increasing weakness, a common sequela of motor neuron disease is
scoliosis. It is important to provide adequate pelvic support with a firm seat to avoid hip
asymmetry. If wheelchairs are too big, asymmetric spinal posture is encouraged. Slanted seats with
pommels are useful to control extensor spasticity, which should not be an issue here. Seat backs
should be high to help control spinal posture.
You are called to the bedside of an individual with a T3 spinal cord injury sustained 7 ½ weeks
earlier. The person complains of pounding headache and appears to have piloerection on the upper
extremities, neck, and face, as well as flushing. Blood pressure is 150/90. The first thing you do is
(a) instill a topical anesthetic into the rectum in order to decrease sensation for a rectal check.
(b) apply 1 inch of topical nitropaste above the level of injury.
(c) irrigate the indwelling urinary catheter with a small amount of normal saline.
(d) sit the person up and loosen any clothing.
(d) This individual is experiencing autonomic dysreflexia, seen typically in individuals with spinal cord
injury with lesions at or above T6. A treatment algorithm that outlines the timing of treatment
recommendations was established by the consortium for spinal cord medicine in 1997. When an
individual presents with autonomic dysreflexic symptoms including elevated blood pressure
(systolic blood pressure greater than 150mm Hg), the very first thing to do is to sit the patient up
with his/her clothing and constrictive devices loosened. If the blood pressure remains elevated and
the individual has an indwelling catheter, kinks and twists should be removed. If there is no urine
flow, the catheter then needs to be irrigated. If the individual does not have an indwelling catheter,
a Foley catheter must be inserted and again if there is no urine flow, it should be irrigated. If there
is good urine flow and/or the blood pressure drops down to normal, then the work-up as well as
other interventions would cease. If the blood pressure remains elevated after irrigation or initiation
of catheter, and the systolic blood pressure remains above 150mm Hg, a short-acting
antihypertensive medication such as topical nitropaste is initiated. After this, if the individual
continues to be hypertensive, he/she may have to be admitted to a hospital to control blood
pressure. If, after the short-acting antihypertensive, the blood pressure drops, evaluation of the
rectum for fecal impaction begins, including installation of lidocaine into the rectum and allowing it
to sit for approximately 5 minutes to decrease sensation before probing the rectum with a gloved
finger and subsequently attempting to disimpact.
The generation of speech following a tracheoesophageal puncture procedure requires
(a) use of an electrolarynx.
(b) swallow prior to vocalization.
(c) manual tracheostomy occlusion.
(d) insertion of a one way valve
(c) The generation of speech following trachealesophageal puncture requires that air flow be directed
from the trachea into the esophagus and through the oropharyngeal cavity. This can only be
achieved if the patient’s tracheostomy site is manually occluded, usually with a digit.
A 37-year-old male pipefitter has completed physical therapy you prescribed for a C6 radiculopathy.
He no longer requires pain medication and is independent in his home exercise program. He
complains of some pain and fatigue during physical therapy. His neurologic and strength
examination is normal. Your next recommendation is
(a) a functional capacity evaluation.
(b) return to work without restrictions.
(c) vocational rehabilitation.
(d) exercise program with weights at home.
(a) A functional capacity evaluation (FCE) is a comprehensive test with some objective data that tests a
person’s ability to perform work-related tasks. An FCE helps determine what the worker can do at
work on a safe and dependable basis. Testing is usually performed work after the initial
rehabilitation program has been completed.
A 47-year-old soldier presents with left finger extensor weakness after repetitive wrist extension
exercises at the gym. Motor nerve conduction studies were as follows:
Extensor Indicis
Nerve Stimulation Site Amplitude(mV) Conduction Velocity (m/s)
L. Radial mid-forearm 6.0
L. Radial elbow 2.0 60
L. Radial spiral groove 2.0 65
R. Radial elbow 5.8
This patient has
(a) radial neuropathy just distal to the spiral groove with axonotmesis.
(b) radial neuropathy just distal to the spiral groove with neurapraxia.
(c) posterior interosseous neuropathy with axonotmesis.
(d) posterior interosseous neuropathy with neurapraxia
(d) There is conduction block across the mid-forearm consistent with a posterior interosseous
neuropathy with neurapraxia
A 3-year-old child has a high thoracic spinal cord injury. When he reaches the age 10 years, which
complication is the child most likely to have?
(a) Isolated lumbar lordosis
(b) Thoracolumbar scoliosis
(c) Deep venous thrombosis
(d) Heterotopic ossification
(b) Scoliosis requiring surgery is a common complication seen in children who have had an spinal cord
injury (SCI) at a young age. Increased lordosis in the absence of scoliosis is rarely seen. Deep
venous thrombosis rarely occurs in young children and when it does occur it usually occurs soon
after the SCI. Heterotopic ossification tends to occur soon after the SCI.
A patient is referred to your office by his primary care physician for evaluation of an unusual gait
pattern caused by a remote case of polio. You note excessive lateral trunk flexion to the left during
stance phase between foot flat and heel off. Swing phase is normal. On exam there is normal hip
flexor strength bilaterally. The gluteus medius is 4-/5 on the left and 5/5 on the right. Knee strength
is normal. The tibialis anterior is 4-/5 on the right and 5-/5 on the left. Range of motion is normal at
all joints. Which gait abnormality is occurring?
(a) Waddling gait
(b) Steppage gait
(c) Trendelenberg gait
(d) Circumducted gait
(c) A waddling gait occurs when there is bilateral gluteus medius weakness. A steppage gait occurs as
an abnormality in swing phase due to severely weak dorsiflexors of the ankle. Foot slap is seen with
moderately weak dorsiflexors and occurs on the side of weakness. Trendelenberg gait is excessive
lateral flexion due to ipsilateral weakness. Circumduction is the swinging of the limb in a wide
lateral arc.
A 42-year-old amateur tennis player complains of severe right elbow pain for 6 months. He has tried
heat, ice, and compression wrap without relief. He denies numbness, but does report weakness in his
grip, especially with his backhand. On examination, the patient has severe pain with palpation just
inferior to the lateral epicondyle. Which finding will most likely be present on further examination?
(a) Pain will be increased with ulnar deviation of the wrist with resisted flexion.
(b) The patient’s brachioradialis reflex will be significantly diminished or absent.
(c) Resisted wrist extension with a straightened elbow will reproduce the patient’s pain.
(d) An audible click will be heard with active supination of the forearm.
(c) This patient has lateral epicondylitis or “tennis elbow,” a condition brought on by repetitive flexionextension
or pronation-supination of the forearm. The pain will be increased by resisted wrist
extension with the elbow at 180°. The reflexes will not be affected, nor will atrophy be noted. This
is not a neurologic condition, but a myofascial one. No audible click will be heard. This might
occur if the radial head is subluxing, but not in lateral epicondylitis.
A 43-year-old man with a history of insulin dependent diabetes mellitus, gastroparesis, hypertension,
and obesity had a right cortical ischemic infarct 7 days ago. The nurses note that he is having
frequent small urinary voids with a weak voiding stream. What bladder mechanism is most
characteristic for this presentation?
(a) Small volume bladder with sphincter flaccidity
(b) Spastic detrusor activity with normal sphincter
(c) Flaccid detrusor with large volume bladder
(d) Hyperactive detrusor with large volume bladder
(c) Although the most common bladder among patients with stroke is normal or hyperreflexic, bladder
hyporeflexia is very common in diabetics (especially in this case with recorded gastroparesis).
These patients will have small frequent voids due to overflow from distended bladders with poor
detrusor contraction.
The most common cause of disability in the United States is
(a) arthritis.
(b) carpal tunnel syndrome.
(c) coronary artery disease.
(d) stroke
(a) Arthritis and other rheumatic conditions are the leading cause of disability in the United States,
imparting an aggregate cost of about 1.1% of the gross national product.
A patient ambulates with a Trendelenburg gait. You suspect an injury to the
(a) femoral nerve.
(b) superior gluteal nerve.
(c) obturator nerve.
(d) sciatic nerve.
(b) Trendelenburg gait is characterized by excessive dropping of the pelvis contralateral to the stancephase
leg. It is caused by weakness of the hip abductors, which include the gluteus medius
innervated by the superior gluteal nerve.
You are called to the neurology intensive care unit to evaluate a patient with new spinal cord injury;
you determine that the patient has sustained a C7 ASIA A spinal cord injury. Which change in the
respiratory system would be expected?
(a) Residual volume will decline to 30% of predicted value.
(b) Pulmonary function will not improve after the first 2 weeks postinjury.
(c) Expiratory reserve volume increases 40% 6 weeks postinjury.
(d) Vital capacity of 60% predicted value may be obtained within the first 6 months post-injury.
(d) Tetraplegic patients usually have a reduction in all measures of pulmonary function with the
exception of residual volume. Residual volume is increased due to lack of active expiratory effort.
Vital capacity will continue to improve. Tracheostomy is usually not necessary for pulmonary
hygiene, especially with adequate hydration and techniques for facilitating cough. Since the
diaphragm is supplied by cervical roots C3, C4, and C5, it is common for persons injured above the
C4 level to need ventilator support. In acute spinal cord injury, 67% experience significant
pulmonary complications, most commonly atelectasis. Ventilatory failure and aspiration occur the
earliest (mean, 4.5 days), followed by atelectasis (mean, 17 days) and pneumonia (mean, 24 days).
The late decline coincides with the onset of mucus hypersecretion and muscle fatigue. Ventilator
weaning has been demonstrated in 80% of C4 spinal cord injury patients and 57% of C3 patients.
Considerable patience is required and respiratory muscle fatigue must be closely monitored.
One year has elapsed since a 56-year-old patient received aggressive treatment for high grade ovarian
cancer. She now presents with a 2-week history of progressive unilateral lower extremity swelling and
weakness, as well as urinary incontinence. The most appropriate initial diagnostic test would be
(a) electromyogram.
(b) urodynamic studies.
(c) pelvic CAT scan.
(d) venogram.
(c) Female gynecologic malignancies tend to recur locally within the pelvis. This patient likely has a
lumbosacral plexopathy due to compression by the tumor. An electromyogram could potentially
identify the portions of the plexus involved, however spontaneous activity would not yet have
developed. Computed tomography of the abdomen and pelvis would determine whether and where
recurrent tumor was present. This would inform surgical or radiation oncologic treatment options.
A 29-year-old painter presents to you with 2 days of knee pain and swelling after falling off a ladder
at work. The swelling began immediately after the fall. His neurologic examination is normal, and
peripheral pulses are normal at the knee and ankle. He is unable to fully extend or flex the knee
because of pain and swelling. He is ambulating with an antalgic gait limp. Your recommendations
include ice and
(a) knee immobilizer, crutches, x-rays, return to sedentary work, recheck in 5 days.
(b) crutches, magnetic resonance imaging, referral to an orthopaedic surgeon.
(c) narcotics, physical therapy, recheck in 3 weeks.
(d) nonsteroidal anti-inflammatory drugs, x-rays, return to work.
(a) Appropriate management for acute knee injuries include, ice, elevation, non-steroidal antiinflammatory
drugs, protection, weight bearing as tolerated and activity modification. X-rays
initially rule out bony injury. magnetic resonance imaging should be reserved for cases where the
diagnosis is in question or a surgical procedure is planned. A careful examination to fully exclude
ligament or cartilage injury cannot be completed until the effusion has resolved enough to allow for
an appropriate examination. Therefore, in the case of an acute knee injury with effusion, the patient
should be reexamined within a 1- to 2-week interval in order to narrow the diagnosis and progress
treatment.
A 50-year-old man complains of paresthesias of the right lateral 3 ½ digits and wrist pain. Nerve
conduction studies for the right arm (norm in parentheses) are as follows:
Motor
Nerve Distal Latency (ms) Amplitude (mV) Conduction Velocity (m/s)
R. Median 5.3 (5) 48 (>45)
R. Ulnar 3.7 (5) 52 (>45) forearm
8.5 50 across the elbow
Sensory
Nerve Stimulation Site Peak Latency(ms) Amplitude ()V)
Median (digit II) wrist 14cm 5.2 (10)
mid palm 7cm 2.0 20
Ulnar (digit V) wrist 14cm 3.4 (10)
The most likely diagnosis is
(a) cubital tunnel syndrome.
(b) ulnar entrapment at Guyon’s canal.
(c) peripheral neuropathy.
(d) carpal tunnel syndrome.
(d) There is slowing of the median motor distal latency and the median sensory latency across the
wrist, findings consistent with carpal tunnel syndrome.
Acquired subluxation or dislocation of the hips in spastic cerebral palsy is usually due to muscular
imbalance and pull of the
(a) hip flexors and tensor fascia lata.
(b) hip flexors and hip adductors.
(c) rectus femoris and hip abductors.
(d) tensor fascia lata and hip extensors.
(b) Strong hip flexor and adductor muscles can overpower weak extensors and abductors. Acquired
hip dislocation can be prevented in some cases by release of spastic hip flexors and adductors.
Which of the following distinguishes running from walking?
(a) Shorter stance phase in walking
(b) No double support in running
(c) Longer step length in walking
(d) Shorter stride length in running
(b) Sixty percent of the complete gait cycle is spent in stance phase while walking. Only 40% of the
time is spent in stance phase during running. By definition, running involves little to no heel strike
and has no double support. Stride length and step length are much greater in running than in
walking.
A 21-year-old US Army recruit reports to boot camp. After 5 days of marching, he reports to the
base physiatrist with complaints of severe pain in his left shin. He states his pain began after a 10-
mile run in full gear this morning. The pain has gotten significantly worse over the last 2 hours. He
is now unable to bear weight on his left leg. On examination, his left shin is shiny and edematous.
He has severe pain with palpation and the muscles seem tight. The most appropriate treatment plan
for this patient would be to
(a) obtain an x-ray and a triple phase bone scan.
(b) measure the pressure in his tibialis anterior muscle immediately.
(c) wrap the foreleg with an Ace bandage, applying pressure from distal to proximal.
(d) apply ice and have the patient elevate his leg when he gets back to his barracks.
(b) Suspicion of a compartment syndrome should lead the physician to get pressure measurements
immediately, since delays may result in permanent muscle or nerve damage. Usual pressures are
less than 30mmHg. Pressures from 30 to 50mmHg are equivocal, but pressures greater than
50mmHg constitute a surgical emergency. The leg should NOT be elevated, because this will lower
arterial perfusion pressure and will further compromise vascular supply. An external
circumferential force will increase pressure. An x-ray and bone scan are not indicated in this
patient.
Findings commonly seen after a right hemispheric stroke include
(a) right hemiplegia.
(b) aphasia.
(c) visual-perceptual deficits.
(d) agraphia.
(c) Strokes on the nondominant hemisphere present with contralateral hemiplegia and hemianesthesia,
aprosody, visual-spatial deficit, and neglect syndrome.
Mr. Smith comes to your office complaining of a hot, painful, swollen left foot. He denies any
history of trauma and states that he forgot to take his allopurinol the past several days. X-rays of his
foot may reveal
(a) chondrocalcinosis of articular cartilage.
(b) bony erosion with an overhanging edge.
(c) severe juxta-articular osteopenia.
(d) pencil in cup deformity.
(b) This patient has gout with characteristic “overhanging edge” lytic lesions. Chondrocalcinosis is
seen in pseudogout, juxta-articular osteopenia is seen in RA, and pencil in cup deformity is seen
with psoriatic arthritis.
For patients with amyotrophic lateral sclerosis, exercise should be prescribed for muscles with
(a) weakness and less than 2/5 strength.
(b) muscles with visible fasciculations.
(c) weakness and better than 3/5 strength.
(d) unaffected muscles
(d) Because amyotrophic lateral sclerosis is a relentlessly progressive disease, only muscles with
unaffected strength should be exercised, to prevent disuse atrophy. In the postpolio patient, it is
acceptable to strengthen weak muscles with greater than fair (or 3/5) strength.
Factors associated with poor prognosis in multiple sclerosis include
(a) female gender.
(b) age at onset less than 20 years.
(c) cerebellar involvement at onset.
(d) relapsing remitting course at onset.
(c) Factors associated with a poor prognosis in multiple sclerosis include: 1) progressive course at
onset. 2) Male sex. 3) Age at onset greater than 40 years. 4) Cerebellar involvement at onset. 5)
Multiple system involvement at onset.
An HMO case manager questions the potential benefits of inpatient rehabilitation for a patient with
metastatic cancer. You explain that the presence of metastases
(a) extends inpatient rehabilitation stays.
(b) decreases durable medical equipment costs.
(c) precludes autonomous mobility and self-care.
(d) does not impact achievement of rehabilitation goals.
(d) In a retrospective chart review it was found that neither the presence of metastatic disease, nor the
need for ongoing anticancer therapy (eg, chemo- or radiation therapy delayed the achievement of
rehabilitation goals or extended rehabilitation hospital stay
A 32-year-old welder suffered a brachial plexus injury falling off a scaffold. He is unable to use his
right upper extremity because of severe weakness. According to the World Health Organization
classification system, the patient’s weakness describes his
(a) injury.
(b) impairment.
(c) disability.
(d) handicap.
(b) Impairment is defined as an alteration of a person’s health status, a deviation from normal in a body
part or any organ system (any loss or abnormality of psychologic, physiologic, or anatomic
structure or function).