ABFAS boards (Rearfoot and forefoot)
UPDATED ACTUAL Questions and
CORRECT Answers
Properties of Calcium phosphate antibiotic beads - CORRECT ANSWER - non
exothermic
Must use powder
Peaks at 3 hours and then elutes over 72 hours
120 day shelf life
Most common 5th metatarsal fracture - CORRECT ANSWER - Avulsion fracture (about
50% of 5th met fractures)
normal IM between 4 and 5?
normal lateral bowing angle? - CORRECT ANSWER - IM= 6.5-9.0
bowing angle=2.6
What is the Myerson procedure? - CORRECT ANSWER - use of EHB in correction of
HAV.
What is biologic fixation? - CORRECT ANSWER -
stewart classification - CORRECT ANSWER - 5th met base fracture
benefit of ropivicaine over bupivaine - CORRECT ANSWER - less cardiotoxicity, but
much more expensive.
most common cause of peroneal spastic flatfoot? - CORRECT ANSWER - tarsal coalition
,What causes a local anesthetic to have faster onset? - CORRECT ANSWER - Lower pKa
Where does the extensor apparatus originate/insert - CORRECT ANSWER - There is no
specific area that it originates from or inserts
What is a geode in medical terms?? - CORRECT ANSWER - A subchondral cyst
Insertion of EDB - CORRECT ANSWER - Extensor apparatus near base of proximal
phalanx.
changes to X-ray machine for fiberglass cast - CORRECT ANSWER - increase mA by
1.5x
What motion unlocks the knee during gait cycle? - CORRECT ANSWER - Pronation of
the STJ, this causes the femur to rotate laterally which will unlock the knee
Which inhaled anesthetic is the most cardioprotective? - CORRECT ANSWER -
isoflurane
What is the half life of heparin? - CORRECT ANSWER - 6 hours
Difference between technetium and gallium - CORRECT ANSWER - Technetium binds
to hydroxyapatite and is seen in areas of high bone turnover.
Gallium binds to WBC's and is seen in areas of increased inflammation.
If used together, Technetium should be given first.
,Which ASA class has 2-3x risk for post-op complications. - CORRECT ANSWER - ASA
class III: specifically a pulmonary complication
How is LMWH excreted? - CORRECT ANSWER - through the kidneys; should be
avoided in those with kidney failure
Which local anesthetic is lease likely to cause methemoglobinemia? - CORRECT
ANSWER - Marcaine
although is is very rare for the other local anesthetics anyway.
What does exposure mean in medical research? - CORRECT ANSWER - Any factors or
characteristics that may explain/predict a certain outcome.
What types of fixation provide compression and also osteogenesis.
How do things provide osteogenesis? - CORRECT ANSWER - Lag screws and dynamic
compression plates.
The lack of motion stimulates osteogenesis
Why is alcohol used to dilute phenol? - CORRECT ANSWER - phenol is insoluble in
water, but is soluble in alcohol.
Should diuretics be held prior to surgery? - CORRECT ANSWER - yes, hypotension is
common in surgery and taking a diuretic may exacerbate the hypotension
anticoagulant that is a direct thrombin inhibitor? - CORRECT ANSWER - dabigatran
, Term in a research study for all people who enter a study regardless of treatment, exposure, or
ability to complete the study? - CORRECT ANSWER - study population
antibiotic for open fracture at a farm? - CORRECT ANSWER - 10-20 million units of
penicillin due to possibility of clostridium contamination.
Why is thermal necrosis of bone problematic? - CORRECT ANSWER - increased zone of
resorption at osteotomy site
met base osteotomy with high rate of dorsal malunion - CORRECT ANSWER - crescentic
osteotomy
Correction of digiti quinti varus with V-y skin plasty often doesn't work due to... - CORRECT
ANSWER - inability of V-Y plasty to correct the deformity adequately
When is midstance phase of gait? - CORRECT ANSWER - opposite side toe off.
apex of deformity in anterior cavus foot with occur at which joint? - CORRECT
ANSWER - 1st met cuneiform joint
effect on mu receptors with surgery?
What affect does this have on pain killers? - CORRECT ANSWER - Mu receptor are up
regulated, this causes opioids to be more effective for pain control
most common complication with polycactyly treatment. - CORRECT ANSWER -
Removal of the wrong extra digit.
-Need adequate pre-op planning and vascular assessment.
What are the stages of anesthesia? - CORRECT ANSWER - 1. amnesia/analgesia
UPDATED ACTUAL Questions and
CORRECT Answers
Properties of Calcium phosphate antibiotic beads - CORRECT ANSWER - non
exothermic
Must use powder
Peaks at 3 hours and then elutes over 72 hours
120 day shelf life
Most common 5th metatarsal fracture - CORRECT ANSWER - Avulsion fracture (about
50% of 5th met fractures)
normal IM between 4 and 5?
normal lateral bowing angle? - CORRECT ANSWER - IM= 6.5-9.0
bowing angle=2.6
What is the Myerson procedure? - CORRECT ANSWER - use of EHB in correction of
HAV.
What is biologic fixation? - CORRECT ANSWER -
stewart classification - CORRECT ANSWER - 5th met base fracture
benefit of ropivicaine over bupivaine - CORRECT ANSWER - less cardiotoxicity, but
much more expensive.
most common cause of peroneal spastic flatfoot? - CORRECT ANSWER - tarsal coalition
,What causes a local anesthetic to have faster onset? - CORRECT ANSWER - Lower pKa
Where does the extensor apparatus originate/insert - CORRECT ANSWER - There is no
specific area that it originates from or inserts
What is a geode in medical terms?? - CORRECT ANSWER - A subchondral cyst
Insertion of EDB - CORRECT ANSWER - Extensor apparatus near base of proximal
phalanx.
changes to X-ray machine for fiberglass cast - CORRECT ANSWER - increase mA by
1.5x
What motion unlocks the knee during gait cycle? - CORRECT ANSWER - Pronation of
the STJ, this causes the femur to rotate laterally which will unlock the knee
Which inhaled anesthetic is the most cardioprotective? - CORRECT ANSWER -
isoflurane
What is the half life of heparin? - CORRECT ANSWER - 6 hours
Difference between technetium and gallium - CORRECT ANSWER - Technetium binds
to hydroxyapatite and is seen in areas of high bone turnover.
Gallium binds to WBC's and is seen in areas of increased inflammation.
If used together, Technetium should be given first.
,Which ASA class has 2-3x risk for post-op complications. - CORRECT ANSWER - ASA
class III: specifically a pulmonary complication
How is LMWH excreted? - CORRECT ANSWER - through the kidneys; should be
avoided in those with kidney failure
Which local anesthetic is lease likely to cause methemoglobinemia? - CORRECT
ANSWER - Marcaine
although is is very rare for the other local anesthetics anyway.
What does exposure mean in medical research? - CORRECT ANSWER - Any factors or
characteristics that may explain/predict a certain outcome.
What types of fixation provide compression and also osteogenesis.
How do things provide osteogenesis? - CORRECT ANSWER - Lag screws and dynamic
compression plates.
The lack of motion stimulates osteogenesis
Why is alcohol used to dilute phenol? - CORRECT ANSWER - phenol is insoluble in
water, but is soluble in alcohol.
Should diuretics be held prior to surgery? - CORRECT ANSWER - yes, hypotension is
common in surgery and taking a diuretic may exacerbate the hypotension
anticoagulant that is a direct thrombin inhibitor? - CORRECT ANSWER - dabigatran
, Term in a research study for all people who enter a study regardless of treatment, exposure, or
ability to complete the study? - CORRECT ANSWER - study population
antibiotic for open fracture at a farm? - CORRECT ANSWER - 10-20 million units of
penicillin due to possibility of clostridium contamination.
Why is thermal necrosis of bone problematic? - CORRECT ANSWER - increased zone of
resorption at osteotomy site
met base osteotomy with high rate of dorsal malunion - CORRECT ANSWER - crescentic
osteotomy
Correction of digiti quinti varus with V-y skin plasty often doesn't work due to... - CORRECT
ANSWER - inability of V-Y plasty to correct the deformity adequately
When is midstance phase of gait? - CORRECT ANSWER - opposite side toe off.
apex of deformity in anterior cavus foot with occur at which joint? - CORRECT
ANSWER - 1st met cuneiform joint
effect on mu receptors with surgery?
What affect does this have on pain killers? - CORRECT ANSWER - Mu receptor are up
regulated, this causes opioids to be more effective for pain control
most common complication with polycactyly treatment. - CORRECT ANSWER -
Removal of the wrong extra digit.
-Need adequate pre-op planning and vascular assessment.
What are the stages of anesthesia? - CORRECT ANSWER - 1. amnesia/analgesia
