Trauma Module-Lower Extremity — OrthopaedicPrinciples.com

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

MCL
PCL
ACL
PLC
LCL

(Question 1 of 10)

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

Castile Soap
Povidone Iodine
Bacitracin
Distilled water
Normal Saline

(Question 2 of 10)

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

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

(Question 3 of 10)

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

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

(Question 4 of 10)

5. 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
Tension forces predominate in the lateral tibial cortex
It is associated with an increased risk posttraumatic degeneration of the ipsilateral ankle.
It is associated with an increased risk of nonunion
It is associated with an increased incidence of valgus malunion.

(Question 5 of 10)

6. True about Sacral fractures are all except?

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

(Question 6 of 10)

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

Supracondylar fractures
Shaft fractures
Intertrochanteric fractures
Femoral neck fractures
Subtrochanteric fractures

(Question 7 of 10)

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

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

(Question 8 of 10)

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

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

(Question 9 of 10)

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

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

(Question 10 of 10)