Disorders Of The Hip

Question 1

Which of intracapsular and extracapsular femoral neck fractures are likely to disrupt blood supply from the medial femoral circumflex artery?

Answer 1

Intracapsular

Question 2

Are the majority of hip dislocation anterior or posterior dislocations?

Answer 2

Around 90% are posterior

Question 3

What happens in a central dislocation of the hip?

Answer 3

The head of the femur is driven into the pelvis through the acetabulum

Question 4

What nerve can be damaged in a posterior hip dislocation?

Answer 4

The sciatic nerve

Question 5

If a patient has experienced a posterior hip dislocation how will there affected lower limb appear?

Answer 5

Shortened, flexed, adducted and internally rotated

Question 6

What is a common cause of hip dislocation seen in patients aged 16-40?

Answer 6

High-speed road traffic accident as it takes a huge amount of force to dislocate a normal hip

Question 7

If you suspect a patient has a neck of femur fracture why is it important to not do a vigorous examination?

Answer 7

You may displace the fracture

Question 8

How would a displaced intracapsular fracture of the neck of femur be treated in an older patient?

Answer 8

Treated by surgical replacement of the femoral head or total hip joint due to high risk of avascular necrosis

Question 9

How will a lower limb appear that has a neck of femur fracture?

Answer 9

Shortened, abducted and externally rotated