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ABFAS boards (Rearfoot and forefoot) Exam Study Guide || Most Recent Exam 2026-2027 Actual Complete Real Exam Questions And Correct Answers (Verified Answers) Already Graded A+ | Guaranteed Success!! | Newest Exam | Just Released!!
why does an infection decrease local anesthetic effectiveness?
- ANSWER -it removes the buffering ability of the tissues which is needed for the anesthetic to be active.
what type of foot is a tibialis anterior muscle transfer used for? - ANSWER - equinovarus
proper treatment of fracture blisters - ANSWER
- aspiration do not de roof the blister
what should also be used when using PMMA beads? - ANSWER -a drain -There is a lot of drainage produced from PMMA beads
Where does the extensor digitorum brevis insert? - ANSWER - extensor expansion of FDL near the MPJ
What is the most common bone tumor in the phalanges?
What to do if bone falls on the floor? - ANSWER -irrigate with bulb syringe iodine bath for 5 minutes and rinse with saline re-implant.
which IV anesthetic can cause adrenal insufficiency? - ANSWER -etomidate
What does it mean when a joint is "Open-pack"? - ANSWER - When the least amount of cartilage is contacting.
When is an ankle in open pack? - ANSWER -plantarflexed
fixation for mildly displaced intraarticular fracture of the styloid process of 5th
varus
when should you start to consider surgery for a child with metatarsus adductus?
- ANSWER -4 years old -at this time they may benefit from soft tissue releases
What is the radiation protection quantity as measured as the amount of energy absored in matter when radiation passes through it? - ANSWER -absorbed dose
which muscle is unipennate?
Which muscle is bipennate? - ANSWER -unipennate-plantar interosseous muscle
Bipennate-dorsal interosseous muscle
genu varum is relatively normal until what age? - ANSWER - years
Which berndt harty OCD lesions are none surgical? - ANSWER - type I and II
Type III when on the medial talar dome due to difficulty accessing the lesion. what is the open chain pronation of the STJ? - ANSWER -dorsiflexion eversion abduction
how many angiosomes are in the foot?
Where do they originate from? - ANSWER -
posterior tibial artery anterior tibial artery peroneal artery
what is genetically mutated and is the cause of malignant hyperthermia - ANSWER -rynodine receptor in the sarcoplasmic reticulum of muscle.
Which zone in the gastroc-soleus complex is most likely to experience over correction? - ANSWER - Zone III
Zones 1 is proximal, zone III is most distal and is the actual achilles tendon.
which metal, common in implants, is not in stainless steel? - ANSWER -titanium
when is it ok to fuse an ankle in slight equinus? - ANSWER - weak quadricep muscles
what local anesthetic property determines potency? - ANSWER - lipid solubility
deepest muscle in the deep posterior calf compartment? - ANSWER -tibialis posterior
best modality to diagnose calcaneal or cuboid stress fracture? - ANSWER -MRI
when doing a delayed flap, when is the graft ready to be mobilized? - ANSWER
days
Which bone tumor is most likely to be found in the epiphysis of the bone? - ANSWER - chondroblastoma
common complication of calcaneucuboid arthroscopy - ANSWER -peroneus brevis tendinitis
when is a second dose of intraoperative antiobiotic indicated? - ANSWER - significant blood loss surgery longer than 2 hours immunocompromise
which nerve fibers are mostly easily blocked with local anesthetic? - ANSWER - B fibers
What does charcot with infection look like on MRI? - ANSWER -joint erosions sinus tract replacement of soft tissues rim enhancement diffuse marrow abnormality
What is the purpose of a SACH heel in an orthotic? - ANSWER - shock absorber
treatment for recurrent club foot after ponseti method in someone less than 2? - ANSWER - repeat same treatment.
what are the 3 phases of wound healing? - ANSWER - inflammation proliferation maturation/remodeling
What ligament limits eversion of the STJ? - ANSWER - interosseous talocalaneal ligament
What is typically the last muscle to weaken in CMT - ANSWER - triceps surae.
In general, smaller muscles degenerate faster -intrinsics -brevis/longus -triceps surrae
clubfoot brace that connects at leg region and can be used for rotational deformities? - ANSWER -wheaton clubfoot brace
What is the main ligament of the STJ? - ANSWER - interosseous talocalcaneal ligament
what position should the medial and longitudinal axis hs be when casting for orthotics? - ANSWER -maximally pronated -locks the midtarsal joint
characteristis of sevoflurane - ANSWER - excellent induction non-pungent (good for asthma) little cardiac depression expensive
minimum degree of malunion to warrant surgical revision of bunionectomy? - ANSWER -15 degrees supposedly
hi nelson - ANSWER -lol
when is midstance? - ANSWER -between opposite side toe off and heel lift of
- acromegaly will have increased bone at the tips of the digits.
what muscle is most responsible for floating toe syndrome? - ANSWER -FDL
Most common congenital deformity affecting the 2nd and 3rd digits? - ANSWER
Syndactly
Most common congenital deformity affecting the 2nd and 3rd digits? - ANSWER
Syndactly
ideal weightbearing status of arthrodiastasis - ANSWER -full weightbearing
what is strain - ANSWER -change in length divided by original length
review wagner classification - ANSWER -
why would the peroneus brevis have a chevron shape on MRI? - ANSWER - split longitudinal tear
On a V-Y tendon lengthening. How long should the "V" be? - ANSWER - 1.5x the length of the advancement needed.
which of the following is not an indication for charcot recon? braceable deformity joint instability bone infection chronic ulcer - ANSWER -braceable deformity-because a braceable deformity is the goal of charcot recon
when is an OATS procedure indicated? - ANSWER -defects over 1.5sqcm
s/s osteoid osteoma - ANSWER -painful, worse at night relieved with aspirin
how can you treat a hypervascular non union? - ANSWER -bone stim ORIF
Do not do early weigthbearing
avulsion of the anterior process of calc results from pull of which ligament? - ANSWER -bifurcate ligament
- Don't get this confused with Vitamin D deficiency
recommended steroid dose for supplementing those taking steroids? - ANSWER -if it will be moderate stress. 50mg prior to incision and then 25mg every 8 hours for 1 day.
best procedure for treatment of dorsiflexed/inverted foot type due to overpowering of anterior tibial tendon? - ANSWER -split transfer of TA to cuneiforms
most important factor for post-op of ankle fracture? - ANSWER -early mobilization/ ROM
what is an example of a mechanical complication of ex fix? - ANSWER -pin- bone interface failure
The following are BIOLOGIC complications:
irritation/infection -compartment syndrome -hematoma formation
what cardiac risk does zofran have? - ANSWER -may increase risk of torsades de pointes (increased QT interval)
What can hyperparathyroidism cause? - ANSWER - hypercalcemia hypophosphatemia hypermagnesemia
if a bone lesion doesn't change after __years, it is considered benign and does not need to be regularly imaged? - ANSWER -2 years
pernicious anemia is due to lack of what? - ANSWER -intrinsic factor (Vitamin B12)
tetracycline will cause what type of bone abnormality to have golden yellow fluorescence? - ANSWER -osteoid osteoma
what is the "modification" in modified brostrom-gould? - ANSWER -use of the
what is the function of the soleus muscle? - ANSWER - deceleration of internal rotation of tibia deceleration of calcaneal eversion slows down anterior motion of tibia
patient in need of surgery has hyperthyroid, what is important to know regarding hyperthyroid and surgery? - ANSWER -epinephrine is beneficial in thyroid storm, anesthetics with epinephrine should be given
standard protocol for post-op of lisfranc injury - ANSWER -6- weeks NWB, 2- weeks partial weightbearing in CAM boot.
3 diseases that cause steppage gait - ANSWER - cerebral palsy polio guillain-barre syndrome
tissues most sensitive to radiation - ANSWER - bone marrow is most sensitive GI CNS
which nerve fibers are most susceptible to nerve block? - ANSWER -B fibers
When is a CT more apropriate than an MRI? - ANSWER - when trying to evaluate articular surfaces
What is the Murphy procedure? what is it used for? - ANSWER -Achilles advancement for spastic equinus especially for cerebral palsy -Advances the attachement anteriorly to reduce the lever arm.
which flexor has muscle at the level of the ankle joint on MRI? - ANSWER -FHL
DVT prevention for post op patient who is still bleeding?
- ANSWER - Intermittent pneumatic compression
