ABFAS Assessment Comprehensive
Questions (Frequently Tested) with
Verified Answers Graded A+
Tetanus prophylaxis - Answer: -Td + tetanus immune globulin if never vaccinated
-Td if >5 years since vaccination
-Nothing if <5 years since vaccination/booster
Bernt and hardy - Answer: - used for osteochondral lesions of talus
. Stage I small area of subchondral bone compressed (small compression fracture) 2. Stage II
partially detached osteochondral fragment (Incomplete avulsion of a fragment) 3. Stage III
completely detached fragment, remaining in crater (Complete avulsion without displacement)
4. Stage IV displaced osteochondral fragment (Avulsed fragment displaced within the joint)
Hawkins - Answer: - talar neck fracture classification
Relation of sessamoids in PF vs DF first ray - Answer: P(f) = Distal sesamoids
D(f) = Proximal sesamoids
Giant Cell - Answer: SPINDLE CELLS
epiphysis
, 2nd,3rd, 4th decades of life
- lytic lesions
- distal tibia
- lung nodule on chest xray
3 phases of skin graft healing - Answer: 1) plasmatic imbibition: first 24-48 hours; graft is initially
bound to the recipient site through formation of a fibrin layer and undergoes diffusion of
nutrients by capillary action from the recipient bed
2) inosculation: donor and recipient end capillaries are aligned and establish a vascular network.
3) Revascularization: ingrowth of new vessels through neovascularization in the third and final
phase, which is generally complete within 4-7 days.
4) Reinnervation: begins approximately 2-4 weeks after grafting and occurs by ingrowth of nerve
fibers from the recipient bed and surrounding tissue
Harris Beath View - Answer: Harris Beath demonstrates the body of the calcaneus, middle facet
of the sub-talar joint and the sustenaculum tali, AND POSTERIOR
and is most useful in demonstrating talocalcaneal coalitions. Middle facet coalitions are the
most common coalition of the subtalar joint. Keep in mind that coalitions are often bilateral.
Chondromyxoid fibroma - Answer: - SPINDLE CELL or stellate cell
- MALE dominance, 2nd and 3rd decades of life
- rare
- tx is curettage and bone graft
- on radiograph- LYTIC lesion with scleoritic rim
- location tibia, femur, also feet
Half life of subcutaneous heparin? - Answer: 1.5 hours
Questions (Frequently Tested) with
Verified Answers Graded A+
Tetanus prophylaxis - Answer: -Td + tetanus immune globulin if never vaccinated
-Td if >5 years since vaccination
-Nothing if <5 years since vaccination/booster
Bernt and hardy - Answer: - used for osteochondral lesions of talus
. Stage I small area of subchondral bone compressed (small compression fracture) 2. Stage II
partially detached osteochondral fragment (Incomplete avulsion of a fragment) 3. Stage III
completely detached fragment, remaining in crater (Complete avulsion without displacement)
4. Stage IV displaced osteochondral fragment (Avulsed fragment displaced within the joint)
Hawkins - Answer: - talar neck fracture classification
Relation of sessamoids in PF vs DF first ray - Answer: P(f) = Distal sesamoids
D(f) = Proximal sesamoids
Giant Cell - Answer: SPINDLE CELLS
epiphysis
, 2nd,3rd, 4th decades of life
- lytic lesions
- distal tibia
- lung nodule on chest xray
3 phases of skin graft healing - Answer: 1) plasmatic imbibition: first 24-48 hours; graft is initially
bound to the recipient site through formation of a fibrin layer and undergoes diffusion of
nutrients by capillary action from the recipient bed
2) inosculation: donor and recipient end capillaries are aligned and establish a vascular network.
3) Revascularization: ingrowth of new vessels through neovascularization in the third and final
phase, which is generally complete within 4-7 days.
4) Reinnervation: begins approximately 2-4 weeks after grafting and occurs by ingrowth of nerve
fibers from the recipient bed and surrounding tissue
Harris Beath View - Answer: Harris Beath demonstrates the body of the calcaneus, middle facet
of the sub-talar joint and the sustenaculum tali, AND POSTERIOR
and is most useful in demonstrating talocalcaneal coalitions. Middle facet coalitions are the
most common coalition of the subtalar joint. Keep in mind that coalitions are often bilateral.
Chondromyxoid fibroma - Answer: - SPINDLE CELL or stellate cell
- MALE dominance, 2nd and 3rd decades of life
- rare
- tx is curettage and bone graft
- on radiograph- LYTIC lesion with scleoritic rim
- location tibia, femur, also feet
Half life of subcutaneous heparin? - Answer: 1.5 hours
