10. bone plating Flashcards
could you use a plate alone to fix a diaphyseal comminuted fracture?
no- plates alone are relatively weak at bending
what are some fixation options for comminuted diaphyseal fractures
interlocking nail
plate/rod
external fixation
is there load sharing with comminuted fractures??
no- there is no load sharing, the plate is responsible to hold up all that load- need stronger/rigid implants
plate/rod general information
discuss forces
no load sharing
alternative to bridging plate
place IM pin first, then place plates/pins
I’m pin counteracts bending forces and helps bring bone out to length
benefits of adding an IM pin to the plate - rather than just having a bridging plate
counteracts bending forces,
helps take strain off the plate,
bring bone out to length
pros of plate/rod
minimal invasive
allows for blood supply to be intact, bc minimal destruction of soft tissue
whats the size of the IM pin in plate/rod
about 35-40 percent of the medullary cavity
whats the best method of insertion
normograde-proximal to distal
how to apply a plate/rod
IM first- normal grade ( 35-40% of cavity)
plate- on tension surface
bicortical screws proxical and distal
pelvic fractures- which bones are recommended to be stabilized?
weight bearing ones
acetabulum, ileum, SI (sacroiliac luxations)
when the pelvis is fractured, there are at least ____ fractures
3 fractures
what are fixation methods for the pelvis
acetabular(articular) and ileum can use bone plates
SI luxation- use lag screws(compressive)
peri-articular fracture fixation options
-external fixation
-cross pins + external coaptation
-plates( locking or specialty)
articular fracture - how to apply and goals
-anatomic fixation/reconstruction (minimum callus)
-rigid fixation- very stabilized
-preserve blood supply
-early and safe mobilization
what is arthrodesis
fusion of the joint- cant preserve cartilage
