CALCANEAL FX

Question 1

most common tarsal bone fractured and this percent is found in young males (21-45 years old)?

Answer 1

calcaneus and 90%

Question 2

Boehlers Angle

describe?

Answer 2

20-40 degrees

decreased with joint depression fx

Question 3

critical angle of gissane

describe

Answer 3

120-140 degrees

increased or decreased with joint depression fx

Question 4

initial tx for blisters that develop on fx site?

Answer 4

incise blister, cover with bacitracin/xeroform and compressive dressing and delay surgery 5-7 days

Question 5

joint depression fx separates the joint/facet from tuberosity what is the effect?

Answer 5

pronation at impact

Question 6

sanders classification is performed at what angle?

Answer 6

30 degrees semicoronal

Question 7

what is this type of fx?

MOA: axial force with foot in supination which causes the talus to be centered further medially, directly oner the sustenaculum tali and is typically non displaced

Answer 7

sustentaculum tali fx

Question 8

types of surgical tx for calcaneal fx, see below

*TQ on which isn’t

maintain full thickness flap

K-wires driven into talus and fibula to maintain exposure and decrease trauma to flap

locate sural nerve and peroneal tendon

incision is prone to dehiscence and delayed healing

Answer 8

see over

Question 9

which piece of hind foot is used as surgical tx for fixation?

Answer 9

sustentaculum tali

Question 10

posterior facet fixation?

Answer 10

4.0 mm cannulated cancellous screw x 2

place into sustentaculum tali

drive guide wires under fluoroscopy in lateral and calcaneal axial projections

Question 11

this can be used to buttress bone graft?

Answer 11

plate application

Question 12

how to treat sanders type IV fx?

Answer 12

fusion