Cadaver Lab Test Flashcards
When and how to sell a bbd?
If it looks medically necessary, outside our usual patient profile. Also the only time the surgeon has access to obtain the specimen
True AP
Endplates parallel, spinous process in the middle, pedicles upper 1/2-1/3
True lateral
End plates parallel; pedicles superimposed
OR etiquette
OR control
1 step ahead
Rapport w OR staff
Maintains sterility
Transpediculater vs extrapediculater
Trans: thick pedicles
Extra: thin pedicles
How to explain via extrapediculater
Avoiding costovertebral joint; go medial
Characteristics between Trans and extrapedicular
T5-T10 extrapedicular: around the pedicle; laterally oriented (one step ahead in lateral
T10-L5 transpedicular: through the pedicle; medially oriented (steps align)
Best type of image for kypho? Why?
MRI Stir, presence of edema, points directly to fracture
Oblique/ en face view
Scotty dog is in oblique view
Looking down the barrel is en face
If you are too medial what do you do?
Pull back
When placing balloon, what is the ideal placement? Why?
Balloon is placed on fracture morphology; better lifting surface
If patient is allergic to iodine what should they use?
Gadolinium
What cement is not cleared for kypho?
Symplex P
____ is not cleared for vertebroplasty but ____ is cleared for both VP & BKP
HV-R; Expede
Make sure Expede cement is mixed _____ fill BFD ____ mm syringe
Immediately, 10mm
HV-R timing
Mixing: 2
Handling: 6
Working: 8
Setting: 4
Expede timing
Mixing: 0-1
Handling: 1-2
Working: 2-16
Setting: 16-20
When anterior wall is breached use ________ ? How?
Egg shell technique; but cement against wall and inflate balloon to spread it out
Responses to ballon rupture
Quickly aspirate to prevent the contrast from looking like cement
Responses to uni-lateral approach
Lift force increases by 200%
Height restoration
Less stress on endplates
Responses to using same ballon multiple times
The integrity of the balloon is compromised
Know how to explain trajectory when given images of VB images
Goal: evaluate end plates, fracture reduction
Check lateral view for fracture morphology
Trajectory determines:
- IBT placement
- entry point
How do u close case
Thank Doctor
Did u meet goals
When’s next case on books
What is the proper way a patient is positioned during kypho?
Prone
