Hip Joint

Question 1

What are the articulating surfaces of the hip joint?

Answer 1

Head of the femur and acetabulum of the pelvix

Question 2

Where is the articulating surface of the acetabulum deficient? What is this area called?

Answer 2

Deficient inferiorly at the acetabular notch

Question 3

What structure deepens the cavity of the acetabulum? By what percent can the cavity be deepened?

Answer 3

acetabular labrum

10%

Question 4

What is the name of the ligament that bridges the acetabular notch?

Answer 4

transverse acetabular ligament

Question 5

the transverse acetabular ligament is a part of what larger structure?

Answer 5

the acetabular labrum

Question 6

This ligament permits free movement, but cannot maintain joint integrity.

Answer 6

The capsular ligament

Question 7

These ligaments reinforce the capsular ligament both anteriorly and inferiorly.

Answer 7

The iliofemoral ligament

the pubofemoral ligament

Question 8

This ligament is considered to be the strongest in the body.

Answer 8

The iliofemoral ligament

Question 9

What are the two attachment sites for the iliofemoral ligament?

Answer 9

the anterior inferior iliac spine

the intertrochanteric line

Question 10

How does the iliofemoral ligament allow a person to stand upright?

Answer 10

becomes tight with full extension - supports the hip joint

“screws” the head of the femur into the acetabulum

Question 11

What muscles take over support/keep you from falling when bending backward?

Answer 11

anterior hip and abdominal muscles

Question 12

What muscles take over support/keep you from falling when bending forward?

Answer 12

Gluteal, hamstring and spinal muscles

Question 13

Is the iliofemoral ligament rope like or wall like?

Answer 13

rope like

Question 14

What is the nerve supply to the hip joint?

Answer 14

Femoral, obturator and sciatic nerves

Question 15

What are the attachment sites for the pubofemoral ligament?

Answer 15

superior ramus of the pubis

intertrochanteric line

Question 16

Which hip ligament prevents abduction of the joint?

Answer 16

the pubofemoral

Question 17

What type of ligament is the pubofemoral?

Answer 17

extrinsic, rope like

Question 18

How does the ischiofemoral ligament reinforce the hip joint?

Answer 18

posteriorly

Question 19

What are the attachment sites for the ischiofemoral ligament?

Answer 19

body of ischium

neck and greater trochanter of the femur

Question 20

What movements are prevented by the ischiofemoral?

Answer 20

hyperextension and abduction

Question 21

Is the ischiofemoral intrinsic/extrinsic, wall like/rope like?

Answer 21

extrinsic rope like

Question 22

Which ligament transforms the acetabular notch into a tunnel? what is the significance of this tunnel?

Answer 22

The transverse acetabular ligament

tunnel is passageway for blood vessels and nerves to enter the joint

Question 23

What is the function of the capitis femoris ligament?

Answer 23

conduct the obturator artery to the head of the femur

Question 24

what role does the capitis femoris ligament play in stabilizing the joint?

Answer 24

none

Question 25

Which two hip ligaments are intrinsic?

Answer 25

Transverse acetabular ligament and capitis femoris ligament

Question 26

How is movement of the hip more limited than movement of the shoulder?

Answer 26

1. when leg flexed at knee: hip flexion limited by anterior surface of thigh contacting with anterior abdominal wall 2. when leg extended at knee: hip flexion limited by hamstrings

Question 27

What is another term for congenital dislocation?

Answer 27

Developmental dysplasia

Question 28

what is the usual causation of developmental dysplasia?

Answer 28

ligamentous laxity: allows hip to slip out of place | ...apparent correlation to breech births

Question 29

Is developmental dysplasia more common in males or females?

Answer 29

females (8x)

Question 30

Pain, abnormal gait, unequal leg length, osteoarthritis, twisting of the femur and contracture of the hip muscle are all symptoms of what condition?

Answer 30

Developmental dysplasia

Question 31

what is another description for femoral anteversion?

Answer 31

twisting of the femur

Question 32

What type of acquired dislocation is most common? What structure is torn? where does the head of the femur end up? what structure could be compromised?

Answer 32

posterior dislocation capsular ligament on the ilium sciatic nerve

Question 33

In an anterior dislocation, where does the head of the femur end up? what nerve may be compromised?

Answer 33

obturator foramen | obturator nerve