ABFAS REVIEW RRA
At what position must the foot be in relation to the ankle during an ankle fusion? -
Answer- 90 degrees
-too much midfoot extension causes osseous equines
What is the biggest risk with a nonoperative treatment of an Achilles tendon rupture?
- Answer- Re-rupture
T/F The talar component is primarily seated in the cancellous bone in a total ankle
replacement - Answer- T
T/F Bone cement is commonly used in TAR to successfully resist shear pressures -
Answer- F - early TAR systems used it
T/F Two component implants are also known as mobile bearing devices - 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? - Answer- Sural Nerve
What is an important landmark to use when completing a posterior ankle scope? -
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? - Answer- 0-13%
Hawkins 2 has what percentage chance of AVN? - Answer- 20-50%
Hawkins 3 has what percentage chance of AVN? - Answer- 20-100%
Hawkins 4 has what percentage chance of AVN? - Answer- 70-100%
What is the most common long term complication from a displaced talar neck
fracture? - Answer- Subtalar Joint arthritis
What is the most important variable in predicting outcome of calcaneal fractures? -
Answer- Degree of soft tissue injury
What structures should be avoided during the dissection for the Evans procedure? -
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? - Answer-
Hypertrophic
, Which of the following is not an example of a hypertrophic nonunion?
B. Oligotrophic
C. Elephant foot
D. Atrophic - Answer- D
What is the bone grafting modality of choice in regard to safety and efficiency in the
surgical management of nonunion? - Answer- Autograft
Post op fever at 48 hours - Answer- DVT
Post op fever at 12-24 hours - Answer- pulmonary atelectasis
Post op fever at 24 hours - Answer- UTI; retention
Post op fever at 72 hours - Answer- surgical site infection
What structure provides significant blood flow to the talaus that should be preserved
during ORIF? - Answer- Deltoid ligament, deltoid artery
T/F Medial OCD are more common than lateral OCD - Answer- T
T/F Anterolateral lesions of the talaus are usually deeper and cup-shaped - Answer-
F- anterolateral lesions are shallow and wafer shaped
What is the best radiographic view to evaluate for a middle facet coalition? - Answer-
Harris beath
What is the most common MOI in patients with an avulsion fracture of the calcaneal
tuberostiy? - Answer- Fall from height
Thurston-Holland sign is seen in what injury? - Answer- Type II Salter Harris
KUWADA Classification - Answer- KUWADA - Achilles Tendon Ruptures
Type 1 - partial tear <50%
Tx: cast with foot plantarflexed
Type 2 - complete tear with <3 cm defect after debridement
Tx: end-to-end attachment
Type 3 - complete tear with 3-6 cm defect after debridement
Tx: end-to-end attachment and tendon flap
Type 4 - complete tear with >6 cm defect after debridement
Tx: end-to-end attachment, recession, or graft
What is the Sneppen classification? - Answer- Talar body fractures
At what position must the foot be in relation to the ankle during an ankle fusion? -
Answer- 90 degrees
-too much midfoot extension causes osseous equines
What is the biggest risk with a nonoperative treatment of an Achilles tendon rupture?
- Answer- Re-rupture
T/F The talar component is primarily seated in the cancellous bone in a total ankle
replacement - Answer- T
T/F Bone cement is commonly used in TAR to successfully resist shear pressures -
Answer- F - early TAR systems used it
T/F Two component implants are also known as mobile bearing devices - 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? - Answer- Sural Nerve
What is an important landmark to use when completing a posterior ankle scope? -
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? - Answer- 0-13%
Hawkins 2 has what percentage chance of AVN? - Answer- 20-50%
Hawkins 3 has what percentage chance of AVN? - Answer- 20-100%
Hawkins 4 has what percentage chance of AVN? - Answer- 70-100%
What is the most common long term complication from a displaced talar neck
fracture? - Answer- Subtalar Joint arthritis
What is the most important variable in predicting outcome of calcaneal fractures? -
Answer- Degree of soft tissue injury
What structures should be avoided during the dissection for the Evans procedure? -
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? - Answer-
Hypertrophic
, Which of the following is not an example of a hypertrophic nonunion?
B. Oligotrophic
C. Elephant foot
D. Atrophic - Answer- D
What is the bone grafting modality of choice in regard to safety and efficiency in the
surgical management of nonunion? - Answer- Autograft
Post op fever at 48 hours - Answer- DVT
Post op fever at 12-24 hours - Answer- pulmonary atelectasis
Post op fever at 24 hours - Answer- UTI; retention
Post op fever at 72 hours - Answer- surgical site infection
What structure provides significant blood flow to the talaus that should be preserved
during ORIF? - Answer- Deltoid ligament, deltoid artery
T/F Medial OCD are more common than lateral OCD - Answer- T
T/F Anterolateral lesions of the talaus are usually deeper and cup-shaped - Answer-
F- anterolateral lesions are shallow and wafer shaped
What is the best radiographic view to evaluate for a middle facet coalition? - Answer-
Harris beath
What is the most common MOI in patients with an avulsion fracture of the calcaneal
tuberostiy? - Answer- Fall from height
Thurston-Holland sign is seen in what injury? - Answer- Type II Salter Harris
KUWADA Classification - Answer- KUWADA - Achilles Tendon Ruptures
Type 1 - partial tear <50%
Tx: cast with foot plantarflexed
Type 2 - complete tear with <3 cm defect after debridement
Tx: end-to-end attachment
Type 3 - complete tear with 3-6 cm defect after debridement
Tx: end-to-end attachment and tendon flap
Type 4 - complete tear with >6 cm defect after debridement
Tx: end-to-end attachment, recession, or graft
What is the Sneppen classification? - Answer- Talar body fractures
