Hip Joint

Question 1

Which bones form the acetabulum?

Answer 1

ileum, ischium and pubis

Question 2

What is the lunate surface of the acetabulum?

Answer 2

the weight bearing part of the acetabulum

Question 3

Which parts of the acetabulum are non articular?

Answer 3

the fossa filled by a fat pad and a notch filled by the ligament of head of femur

Question 4

Where is the epiphyses in the head of the the femur?

Answer 4

at the anatomical neck

Question 5

What is the fovea of the head of the femur?

Answer 5

the non articular site where the ligament of head of femur attaches

Question 6

Where is the intertrochanteric line?

Answer 6

between the greater and lesser trochanters anteriorly

Question 7

Where is the intertrochanteric crest?

Answer 7

between the greater and lesser trochanters posteriorly

Question 8

What is responsible for growth and fusion of pressure epiphyses in the femur?

Answer 8

weight bearing

Question 9

What is responsible for growth and fusion of traction epiphyses in the femur?

Answer 9

force of contraction from gluteal muscles

Question 10

In what direction is the femoral head oriented?

Answer 10

upwards, medially and anteriorly

Question 11

What protects the part of the femoral head which is outside the capsule?

Answer 11

the psoas bursa

Question 12

What increases the surface area of the hip joint?

Answer 12

the labrum

Question 13

What is the role of the ligament of head of femur?

Answer 13

direct a branch of the obturator artery to the head of the femur

Question 14

What are the 4 trabecular systems in the bone of the femur?

Answer 14

vertical, arcuate, medial and lateral

Question 15

Where does the line of gravity pass compared to the hip joint?

Answer 15

behind

Question 16

What is the open packed position of the hip joint?

Answer 16

flexed, laterally rotated and adducted

Question 17

What ligaments reinforce the hip joint?

Answer 17

iliofemoral ligament, pubofemoral ligament, ischiofemoral ligament

Question 18

What is the role of the iliofemoral ligament?

Answer 18

to resist extension by spiraling and tightening

Question 19

What nerves is the hip joint innervated by?

Answer 19

femoral and obturator nerves

Question 20

What nerve will give referred pain from the hip?

Answer 20

the obturator nerve

Question 21

What will refer pain to the hip?

Answer 21

the sacroiliac joint and the lumbar spine

Question 22

What is the blood supply of the hip?

Answer 22

medial and lateral femoral circumflex arteries, artery of head of femur, retinacular vessels

Question 23

What fracture is associated with a dislocation of the hip?

Answer 23

fracture of the posterior lip of the acetabulum

Question 24

What nerve is endangered in a dislocation of the hip?

Answer 24

sciatic nerve

Question 25

What position of the leg indicates a fracture of the neck of femur?

Answer 25

external rotation and shortening of the limb - due to muscle spasm

Question 26

When is the blood supply to the hip joint at risk?

Answer 26

in a fracture of the neck of femur