ABFAS BOARD EXAM 2026
COMPREHENSIVE EXAM FINAL PAPER
WITH VERIFIED SOLUTIONS
⩥ Most common 5th metatarsal fracture. Answer: Avulsion fracture
(about 50% of 5th met fractures)
⩥ normal IM between 4 and 5?
normal lateral bowing angle?. Answer: IM= 6.5-9.0
bowing angle=2.6
⩥ What is the Myerson procedure?. Answer: use of EHB in correction of
HAV.
⩥ What is biologic fixation?. Answer:
⩥ stewart classification. Answer: 5th met base fracture
⩥ benefit of ropivicaine over bupivaine. Answer: less cardiotoxicity, but
much more expensive.
,⩥ most common cause of peroneal spastic flatfoot?. Answer: tarsal
coalition
⩥ What causes a local anesthetic to have faster onset?. Answer: Lower
pKa
⩥ Where does the extensor apparatus originate/insert. Answer: There is
no specific area that it originates from or inserts
⩥ What is a geode in medical terms??. Answer: A subchondral cyst
⩥ Insertion of EDB. Answer: Extensor apparatus near base of proximal
phalanx.
⩥ changes to X-ray machine for fiberglass cast. Answer: increase mA by
1.5x
⩥ What motion unlocks the knee during gait cycle?. Answer: Pronation
of the STJ, this causes the femur to rotate laterally which will unlock the
knee
⩥ Which inhaled anesthetic is the most cardioprotective?. Answer:
isoflurane
,⩥ What is the half life of heparin?. Answer: 6 hours
⩥ Difference between technetium and gallium. 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.. Answer:
ASA class III: specifically a pulmonary complication
⩥ How is LMWH excreted?. Answer: through the kidneys; should be
avoided in those with kidney failure
⩥ Which local anesthetic is lease likely to cause methemoglobinemia?.
Answer: Marcaine
although is is very rare for the other local anesthetics anyway.
⩥ What does exposure mean in medical research?. 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?. Answer: Lag screws and dynamic
compression plates.
The lack of motion stimulates osteogenesis
⩥ Why is alcohol used to dilute phenol?. Answer: phenol is insoluble in
water, but is soluble in alcohol.
⩥ Should diuretics be held prior to surgery?. Answer: yes, hypotension
is common in surgery and taking a diuretic may exacerbate the
hypotension
⩥ anticoagulant that is a direct thrombin inhibitor?. Answer: dabigatran
⩥ Term in a research study for all people who enter a study regardless of
treatment, exposure, or ability to complete the study?. Answer: study
population
⩥ antibiotic for open fracture at a farm?. Answer: 10-20 million units of
penicillin due to possibility of clostridium contamination.
COMPREHENSIVE EXAM FINAL PAPER
WITH VERIFIED SOLUTIONS
⩥ Most common 5th metatarsal fracture. Answer: Avulsion fracture
(about 50% of 5th met fractures)
⩥ normal IM between 4 and 5?
normal lateral bowing angle?. Answer: IM= 6.5-9.0
bowing angle=2.6
⩥ What is the Myerson procedure?. Answer: use of EHB in correction of
HAV.
⩥ What is biologic fixation?. Answer:
⩥ stewart classification. Answer: 5th met base fracture
⩥ benefit of ropivicaine over bupivaine. Answer: less cardiotoxicity, but
much more expensive.
,⩥ most common cause of peroneal spastic flatfoot?. Answer: tarsal
coalition
⩥ What causes a local anesthetic to have faster onset?. Answer: Lower
pKa
⩥ Where does the extensor apparatus originate/insert. Answer: There is
no specific area that it originates from or inserts
⩥ What is a geode in medical terms??. Answer: A subchondral cyst
⩥ Insertion of EDB. Answer: Extensor apparatus near base of proximal
phalanx.
⩥ changes to X-ray machine for fiberglass cast. Answer: increase mA by
1.5x
⩥ What motion unlocks the knee during gait cycle?. Answer: Pronation
of the STJ, this causes the femur to rotate laterally which will unlock the
knee
⩥ Which inhaled anesthetic is the most cardioprotective?. Answer:
isoflurane
,⩥ What is the half life of heparin?. Answer: 6 hours
⩥ Difference between technetium and gallium. 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.. Answer:
ASA class III: specifically a pulmonary complication
⩥ How is LMWH excreted?. Answer: through the kidneys; should be
avoided in those with kidney failure
⩥ Which local anesthetic is lease likely to cause methemoglobinemia?.
Answer: Marcaine
although is is very rare for the other local anesthetics anyway.
⩥ What does exposure mean in medical research?. 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?. Answer: Lag screws and dynamic
compression plates.
The lack of motion stimulates osteogenesis
⩥ Why is alcohol used to dilute phenol?. Answer: phenol is insoluble in
water, but is soluble in alcohol.
⩥ Should diuretics be held prior to surgery?. Answer: yes, hypotension
is common in surgery and taking a diuretic may exacerbate the
hypotension
⩥ anticoagulant that is a direct thrombin inhibitor?. Answer: dabigatran
⩥ Term in a research study for all people who enter a study regardless of
treatment, exposure, or ability to complete the study?. Answer: study
population
⩥ antibiotic for open fracture at a farm?. Answer: 10-20 million units of
penicillin due to possibility of clostridium contamination.
