Trauma Module-Lower Extremity — OrthopaedicPrinciples.com

1. Regarding plate fixation for pubic symphysis diastasis the following are true except

symphysis is an amphiarthrodial joint, consisting of a fibrocartilaginous disc, and stabilized by the superior and inferior arcuate ligaments
A lower midline incision is preferred to help identify visceral injuries if necessary
Placement of a Foley catheter is needed to decompress the bladder
Double plating is ideally done in 90-90 degree fashion
Indicated if there is more than 2.5 cm displacement

(Question 1 of 10)

2. In a pelvic fracture, selective arterial embolisation can be considered to reduce ongoing haemorrhage if

Restoration of haemodynamic stability by initial fluid resuscitation
Stable fracture pattern
liver, kidney, spleen or other visceral lacerations
A CT Scan finding of a large hematoma in the space of Retzius
Ultrasound finding of a retroperitoneal hematoma

(Question 2 of 10)

3. The most important ligament to be reconstructed in an isolated knee dislocation in the absence of a fracture is?

PCL
LCL
ACL
PLC
MCL

(Question 3 of 10)

4. Sarmiento’s functional cast bracing is contraindicated in which of the following?

Articular Involvement
Significant angular instability.
Presence of an open fracture
Rotational instability
Significant axial instability

(Question 4 of 10)

5. Femur fractures that are most often associated with a pathologic process:

Subtrochanteric fractures
Femoral neck fractures
Shaft fractures
Supracondylar fractures
Intertrochanteric fractures

(Question 5 of 10)

6. Which of the following injuries is most commonly associated with knee dislocation

fracture of the tibial plateau
common peroneal nerve injury
Segond fracture
fracture of the distal femur
popliteal artery rupture

(Question 6 of 10)

7. The following are true of acetabular fracture surgery except:

Infratectal and Juxtatectal fractures are best managed by Kocher Langenback approach
The incidence of heterotopic ossification is highest for Ilioinguinal approach
The Ilioinguinal approach is ideal for anterior column fracture fixation
The development of secondary arthritis has a correlation with degree of articular reduction
An arteriogram is required to check the patency of superior gluteal artery prior to undertaking an extended iliofemoral approach

(Question 7 of 10)

8. The best solution for irrigation during debridement of an open tibial fracture is

Povidone Iodine
Distilled water
Castile Soap
Bacitracin
Normal Saline

(Question 8 of 10)

9. True about Sacral fractures are all except?

U shaped fractures involved spinopelvic dissociation and maybe associated with cauda equina syndrome
L5 nerve root is most commonly injured in Zone 1 injuries
The Denis classification has 3 zones
Transformaminal fractures with vertical instability and comminution should be treated with iliosacral screws only
Zone 3 injuries have highest risk of neurological involvement

(Question 9 of 10)

10. A 20 year old male sustains a closed tibial shaft fracture with an intact fibula. Which of the following statements is false?

It is associated with an increased incidence of delayed union
It is associated with an increased incidence of valgus malunion.
It is associated with an increased risk posttraumatic degeneration of the ipsilateral ankle.
Tension forces predominate in the lateral tibial cortex
It is associated with an increased risk of nonunion

(Question 10 of 10)