Trauma
What is a Pilon fracture? - ANSPeriarticular distal tibia fracture often involves articular extension
Type 1 Pilon - ANS-No articular incongruity
-No displacement or fragments
Type 2 pilon - ANS-Significant articular incongruity
-Minimal comminution/impaction
Type 3 pilon - ANS-significant articular comminution and metaphysical impaction
How many primary fragments are involved in a pilon case? - ANS3
Where is most comminution present in pilons? - ANS-Center and anterolateral
-Present in 95%
Insincura is typically split in half which ways? - ANS-Anteromedial and posterior medial frag
Posterior piece is referred to as? - ANSVolkmann; pitfl is disrupted
Anterior piece is referred to as? - ANSChaput; Aitfl îs disrupted
How many primary pilon fusion plates do we have in our set? - ANS2
Anterior and posterior
Benefits of arthofx - ANS-Increased speed
-Cost effective
-1 tray
-High ASP
-20% cheaper than synthes
What size & increment carbon rods are in the Arthrofx? - ANS11mm carbon rods
100-500mm in 50mm increments
What size Shantz pins are offered? - ANS4x125, 150mm
5x175, 200,250mm
What size transfixation pins are offered? - ANS6mmx225mm
, 6mmx300mm
What are the 3 categories for arthrofx? - ANS-Knee spanning
-Pelvic frame
-Delta frame
Transfixation Pin through the calcaneus placement - ANSperpendicular to the long axis of the
calcaneus, parallel to the ankle joint.
What is the correct direction of the trans-calcaneal pin? - ANSAlways medial to lateral, 1-2cm
from calc, parallel to joint
Where can additional schantz pins be added for ankle support? - ANSAn additional 4 mm
Schanz pin can be added into the bar of the first metatarsal at a slight angle to incorporate the
foot.
How many plates are offered in the distal tibia plating system? - ANS7
5 tibial plates Arthrex offers - ANS-Anterolateral
-Anterior
-Medial
-Posterior
-Straight/rim plate
2 fibula plates offered in the system are? - ANSDistal fibula plate 7 anatomic distal fibula plate
How far outside of the zone of injury do you want to be? - ANS4 finger breathes
Varus fracture - ANSGoing towards the midline
-Medial plate
Valgus Fracture; most common type of plate - ANSGoing away from midline
-Anterolateral plate
Communited side= - ANSCompression side
advantages of IM nailing - ANS-Smaller incisions
-Biologically friendly
-May improve union
Disadvantages of IM nailing - ANS-Reduction can be more challenging
-Implant/screw interface is different