ABFAS REVIEW RRA QUESTIONS AND
ANSWERS WELL ILLUSTRATED.
At what position must the foot be in relation to the ankle during an ankle fusion? -
correct answer. 90 degrees
-too much midfoot extension causes osseous equines
What is the biggest risk with a nonoperative treatment of an Achilles tendon rupture? -
correct answer. Re-rupture
T/F The talar component is primarily seated in the cancellous bone in a total ankle
replacement - correct answer. T
T/F Bone cement is commonly used in TAR to successfully resist shear pressures -
correct answer. F - early TAR systems used it
T/F Two component implants are also known as mobile bearing devices - correct
answer. F - fixed-bearing
-poly piece is locked within the tibial component
What structure is most at risk when utilizing the posterior lateral portal for ankle
arthroscopy? - correct answer. Sural Nerve
What is an important landmark to use when completing a posterior ankle scope? -
correct answer. FHL - always identify and debride from its sheath, allows you to avoid
damage to NV bundle
Hawkins 1 has what percentage chance of AVN? - correct answer. 0-13%
Hawkins 2 has what percentage chance of AVN? - correct answer. 20-50%
Hawkins 3 has what percentage chance of AVN? - correct answer. 20-100%
, Hawkins 4 has what percentage chance of AVN? - correct answer. 70-100%
What is the most common long term complication from a displaced talar neck fracture? -
correct answer. Subtalar Joint arthritis
What is the most important variable in predicting outcome of calcaneal fractures? -
correct answer. Degree of soft tissue injury
What structures should be avoided during the dissection for the Evans procedure? -
correct answer. Plantar, periarticular liagments of the CC joint and long plantar
ligament
-will cause disruption of the fragment stability
What type of nonunions are characterized by an abundant attempts at healing with good
blood flow to the fracture site but without appropriate stability? - correct answer.
Hypertrophic
Which of the following is not an example of a hypertrophic nonunion?
B. Oligotrophic
C. Elephant foot
D. Atrophic - correct answer. D
What is the bone grafting modality of choice in regard to safety and efficiency in the
surgical management of nonunion? - correct answer. Autograft
Post op fever at 48 hours - correct answer. DVT
Post op fever at 12-24 hours - correct answer. pulmonary atelectasis
Post op fever at 24 hours - correct answer. UTI; retention
Post op fever at 72 hours - correct answer. surgical site infection
What structure provides significant blood flow to the talaus that should be preserved
during ORIF? - correct answer. Deltoid ligament, deltoid artery
T/F Medial OCD are more common than lateral OCD - correct answer. T
T/F Anterolateral lesions of the talaus are usually deeper and cup-shaped - correct
answer. F- anterolateral lesions are shallow and wafer shaped
What is the best radiographic view to evaluate for a middle facet coalition? - correct
answer. Harris beath
ANSWERS WELL ILLUSTRATED.
At what position must the foot be in relation to the ankle during an ankle fusion? -
correct answer. 90 degrees
-too much midfoot extension causes osseous equines
What is the biggest risk with a nonoperative treatment of an Achilles tendon rupture? -
correct answer. Re-rupture
T/F The talar component is primarily seated in the cancellous bone in a total ankle
replacement - correct answer. T
T/F Bone cement is commonly used in TAR to successfully resist shear pressures -
correct answer. F - early TAR systems used it
T/F Two component implants are also known as mobile bearing devices - correct
answer. F - fixed-bearing
-poly piece is locked within the tibial component
What structure is most at risk when utilizing the posterior lateral portal for ankle
arthroscopy? - correct answer. Sural Nerve
What is an important landmark to use when completing a posterior ankle scope? -
correct answer. FHL - always identify and debride from its sheath, allows you to avoid
damage to NV bundle
Hawkins 1 has what percentage chance of AVN? - correct answer. 0-13%
Hawkins 2 has what percentage chance of AVN? - correct answer. 20-50%
Hawkins 3 has what percentage chance of AVN? - correct answer. 20-100%
, Hawkins 4 has what percentage chance of AVN? - correct answer. 70-100%
What is the most common long term complication from a displaced talar neck fracture? -
correct answer. Subtalar Joint arthritis
What is the most important variable in predicting outcome of calcaneal fractures? -
correct answer. Degree of soft tissue injury
What structures should be avoided during the dissection for the Evans procedure? -
correct answer. Plantar, periarticular liagments of the CC joint and long plantar
ligament
-will cause disruption of the fragment stability
What type of nonunions are characterized by an abundant attempts at healing with good
blood flow to the fracture site but without appropriate stability? - correct answer.
Hypertrophic
Which of the following is not an example of a hypertrophic nonunion?
B. Oligotrophic
C. Elephant foot
D. Atrophic - correct answer. D
What is the bone grafting modality of choice in regard to safety and efficiency in the
surgical management of nonunion? - correct answer. Autograft
Post op fever at 48 hours - correct answer. DVT
Post op fever at 12-24 hours - correct answer. pulmonary atelectasis
Post op fever at 24 hours - correct answer. UTI; retention
Post op fever at 72 hours - correct answer. surgical site infection
What structure provides significant blood flow to the talaus that should be preserved
during ORIF? - correct answer. Deltoid ligament, deltoid artery
T/F Medial OCD are more common than lateral OCD - correct answer. T
T/F Anterolateral lesions of the talaus are usually deeper and cup-shaped - correct
answer. F- anterolateral lesions are shallow and wafer shaped
What is the best radiographic view to evaluate for a middle facet coalition? - correct
answer. Harris beath
