Overview MIO

Question 1

Why is imaging of the contralateral segment highly recommended? (3)

Answer 1

1. optimizes implant selection
2. ID normal vs abnormal structures
3. evaluate postop alignment

Question 2

True/false: The avoidance of undue tissue handling (including external manipulation) is what makes surgery minimally invasive

Answer 2

true

it is the surgical footprint you are leaving behind, not incision length

Question 3

What planes and directions are you checking alignment?

Answer 3

Sagittal (procurvatum-recurvatum)
frontal (varus-valgus)
transverse (internal/external torsion)
*also length

Question 4

Doubling the distance between surgeon and X-ray beam decreases exposure by ___%

Answer 4

75%

Question 5

What is the highest personnel exposure from radiation?

Answer 5

Scatter: backward scatter toward the generator can represent 25-40% energy of primary beam

Question 6

Where is the primary biomechanical weakness in ESF?

Answer 6

pin-bone interface

Question 7

Why is appropriate insertional torque important? (3)

Answer 7

impacts push-out strength
cantilever bending
stiffness of locking interface

Question 8

True/false: Rotational alignment and frontal alignment are well tolerated, but sagittal plane and limb length may severely impede functional recovery

Answer 8

False:
Rotational alignment and frontal alignment may severely impede functional recovery
but sagittal plane and limb length are well tolerated

Question 9

What bones (and surfaces) are safe for plate placement?

Answer 9

femur (lateral),
tibia (medial)
radius (cranial)