Trauma Flashcards
When to consider treating closed humeral shaft fractures operatively…
When patients had no callus formation and motion at 6 weeks, they are likely to proceed to nonunion and should be managed with ORIF. IMN has higher complication rate.
Class 3 shock is indicated by…
Hemodynamically unstable, need blood product.
SIRS criteria
SIRS criteria
Order of recovery for high radial nerve palsy…
First branch of the internal iliac artery?
Superior gluteal artery
Pelvic ring injury - what artery is most commonly injured…
APC and vertical shear?
Lateral compression?
Superior gluteal artery
Obturator artery
Extension of intertrochanteric fractures _____ below the lesser trochanter can be safely treated with short IMN.
4cm
>4cm need long nail
70% or radial nerve palsy’s recover by….
7 weeks
What view is needed for AP placement of anterior column screw for pelvic ring injury?
Iliac oblique
View needed for superior inferior view of anterior column pelvic screw?
Obturator outlet
Elementary acetabular types
Posterior wall
Posterior column
Anterior wall
Anterior column
Transverse (involves both columns)
Associated acetabular fractures
-Both column (spur sign)
-Anterior column with posterior hemitransverse (elderly)
-T type
-Posterior column posterior wall
-Transverse posterior wall
Acetabular fracture patterns treated via posterior approach
Posterior column
Posterior wall
Posterior column + posterior wall
*Transverse posterior wall
Some transverse and T patterns
Acetabular fracture patterns treated via anterior approaches (ilioinguinal, stoppa)
Anterior column
Anterior wall
Anterior column posterior hemitransverse
Both column
Some transverse and T patterns
When is an extended iliofemoral approach needed for acetabular fracture treatment?
Complex patterns with anterior and posterior displacement
*can also do combined approach instead of iliofemoral
Dynamic stress test of posterior walll acetabular fractures is done on this view?
Obturator oblique
Minimum lateral wall thickness for intertroch fracture to do sliding hip screw?
20.5mm
Using the FRAX calculator tool, at what 10 year risk of hip fracture and/or what overall 10 year risk of fracture (any) are the cutoffs for initiating bone health treatment?
3% hip
20% overall
For femoral shaft fractures what is an acceptable degree of malrotation?
<15 deg
How do you calculate femoral rotational malalignment after IMN?
Hip - knee
How do you calculate femoral rotational malalignment after IMN?
Version of hip - knee
+ = anteversion
- = retroversion
Open distal femur fractures have a high incidence of…
Hoffa fragment
What surgical factors optimize secondary bone healing principle in metaphyseal distal femur fractures?
Long working length
Longer plates
Titanium plate
Non locking Cortical screws in the shaft
Far cortical locking screws
