Fx

Question 1

Risk factors for HO after adult BBFA ORIF

Answer 1

Single incision
Surgery delay >2 weeks
Screws/bone graft put into IO membrane
Prolonged immobilization

Question 2

When to ROH after adult BBFA ORIF

Answer 2

At least 15 months

Protect activity for 3 months after ROH

Question 3

Normal Bohler angle

Answer 3

20-40 deg

Question 4

Normal angle of Gissane

Answer 4

130-145 deg

Question 5

Most common complication with supine femur fx nailing

Answer 5

Increased internal rotation

Question 6

Most common complication with lateral femur fx nailing

Answer 6

Increased external rotation

Question 7

Kid with normal knee XR but no straight leg raise

Answer 7

GET MRI

Question 8

Most common cause/predictor of mortality after pelvic fx

Answer 8

Bleeding + transfusion

APC3 has highest need for transfusion

Question 9

Ligaments disrupted in APC2

Answer 9

Anterior SI
Sacrotuberous
Sacrospinous

Question 10

Ligaments disrupted in APC3

Answer 10

APC2 + posterior SI

Question 11

Most common complication after pelvic fx

Answer 11

DVT

Question 12

RBC on UA after pelvic fx to get cystogram

Answer 12

> 25 RBC

Question 13

Amount of prox humerus calcar needed to preserve blood supply

Answer 13

8 mm

Question 14

Treatment for varus malunion talus fx

Answer 14

Medial opening wedge osteotomy

Question 15

Most common long-term sequelae of APC ring injuries

Answer 15

Sexual dysfunction

Question 16

Strongest risk factors for nonunion of non-op clavicle fx

Answer 16

Smoking
Comminution
Displacement

Question 17

Factors predictive of AVN after prox hum fx

Answer 17

4 part fx
Head angulation >45 deg
Tuberosities displaced >1 cm
Dislocation
Head-split
<8 mm calcar segment

Question 18

What is the assoc injury with a cuboid compression fx (nutcracker fx)

Answer 18

Lisfranc injury