Anatomy
What are the three parts of a femur?
head, neck, body.
What is the routine for a femur?
Proximal and distal AP and LAT.
What is the most common proximal femur fracture?
Intracapsular fracture or femoral neck
What is the number one cause for a HIGH-level trauma femur fracture?
automobile accidents
What is another name for a compound fracture?
Open fracture
What are the four essential parts of the proximal femur?
head, neck, greater and lesser trochanter.
What is the name of the common projection done for a suspected trauma of the proximal femur?
Danelius-Miller Method
What is an intertrochanteric fracture?
Fracture from the greater to lesser trochanter
What is the longest, largest, and hardest bone in the body?
Femur
How many fragment pieces are needed to be classified as a comminuted fracture?
2 or more
What is the angle of the neck to the shaft on an average adult?
125 degrees
How many degrees and in what direction must the lower leg be rotated to place the femoral neck parallel to the image receptor for an AP projection?
15 to 20 internally.
What are the terms for how a hip fracture is classified?
intracapsular or extracapsular.
How many people will fracture their femur in their lifetime?
1 in 10,000
What is Greenstick fracture?
The fracture is only present on one side of the bone.
What is the name of the thick ridge that joins the trochanters posteriorly?
Intertrochanteric crest
What is a contraindication of a suspected proximal femur fracture?
Exaggerated external rotation of the affected foot.
What is the most common cause of a proximal femur fracture?
Fall
Before WWI, what was your chance of death after suffering femur fracture?
What is the average recovery time for a broken femur?
12 weeks to 12 months
What is the purpose of the Fovea Capitis?
What is the degree of tilt of the IR for the Clements-Nakayama method?
15 degrees
What makes a fracture subtrochanteric?
Anything between the lesser trochanter and 5 cm down the femoral shaft.
How much force does it take to break the average human femur?
A) 20 newtons
B) 100 newtons
C) 4,000 newtons
D) 10,000 newtons
C) 4,000 newtons
What percentage of isolated femur bone breaks require a blood transfusion?
A) 30%
B) 40%
C) 20%
D) 10%
B) 40%