Hip Joint Flashcards Preview

Jonathan's Locomotor > Hip Joint > Flashcards

Flashcards in Hip Joint Deck (44):
1

T/F Hip joint is very mobile and unstable like the shoulder joint

False, it is the most mobile and stable joint of the body

2

What are the three hip bones?

ischium, ileum, pubis

3

What's the name of the joint socket?

acetabulum

4

Which parts of the acetabulum is non-articular

the notch and the fossa

5

T/F the bony structure of acetabulum is a complete circle

False, the bony structure forms a lunate surface. Only Cartilage forms the complete circle

6

T/F the fat pads of hip joint are intra-articular but extra-synovial

True

7

Is the fovea of the femur articular?

No, it is a site of ligament attachment by is non-articular

8

Where is the anatomical neck and what is it a site for?

Just below the head of the femur. it is a site of epiphysis

9

What are the holes of the femur neck for?

they are vascular foramina

10

Is the lesser trochanter more prominent anteriorly or posteriorly?

posteriorly

11

Where is the intertrochanteric line? What is its function?

it is located anteriorly at the base of the femur neck. It is a site of ligament attachments

12

Where is the intertrochanteric crest?

located posteriorly. It is an elevation medial to the greater trochanter

13

What are the two types of epiphysis?

pressure and traction epiphysis

14

where is pressure epiphysis formed?

at weight bearing sites

15

where is traction epiphysis formed?

at sites of muscle + ligament attachments

16

Which part of the femur head tend to lie outside of the socket? How is it protected?

the anterior part
It is protected by the psoas bursa

17

What is the direction of femural head into the socket

superiorly, medially and anteriorly

18

Which muscles arise from the ischial tuberosity?

hamstring muscles

19

What is Weaver's bottom?

bursitis associated with the ischial tuberosity

20

How does the narrowing of the neck help hip movement?

there is greater room of movement at hip joint

21

What is the labrum made of?

fibrocartilage

22

How is fibrocartilage different to hyaline cartilage?

there is some peripheral vascular supply

23

What is the function of the ligament of the head of femur

direct branches of obturator artery to femoral head

24

What is the appearance of arcuate bundle?

trabeculae in either the vertical or lateral direction intersecting with each other

25

The loss of trabeculae usually leads to which condition?

osteoporosis

26

where does the line of gravity fall at the hip, knee and ankle

behind the hip joint
in front of the knee joint
significantly in front of the ankle joint

27

When is the femoral joint at maximum stability?

during extension, due to the tightening of iliofemoral ligament

28

At which position is it most likely to dislocate the hip joint?

during flexion

29

What are the internal and external ligaments for the femoral joint?

internal: zona orbicularis
external: iliofemoral, ischiofemoral and pubofemoral

30

what is the function of retinacular fibres

transmit blood vessels to the epiphysis and head of femur

31

What is Perthe's disease?

avascular necrosis of the femoral head

32

Does medial rotation occur with flexion?

No, medial rotation occurs with hip extension, and lateral rotation occurs with hip flexion

33

What is trendellenberg gait?

person unable to keep the pelvis parallel, often due to abductor damage

34

Which nerves supply the
1) anterior
2) medial
3) posterior

aspects of the trunk

1) femoral
2) medial
3) sciatic

35

which four spinal segments are responsible for hip movements

L2, L3 for flexors
L4, L5 for extensors

36

Do the same lumbar branches go on to supply the knee joint?

Yes, so knee and hip movements can be coordinated

37

T/F You can have pain at the knee joint without any pathology

True, because you can get referred pain from the hip

38

What are the key arterial branches of the hip joint?

medial and lateral circumflex arteries of the profunda femoris

39

In which position is the capsule most susceptible to injury?

in crossed legged position

40

Why is there shortening of the limb in a femoral neck fracture?

the rotator muscles can spasm and pull in the femur

41

How does oesteoarthritis occur?

age -> loss of cartilage -> bones rub against each other -> develop osteophites

42

What is the usual pathology in congenital dislocation of the hip?

flattening of the femoral head and acetabulum

43

What is the test for congenital flattening of the acetabulum

adduct the hip to listen for the click (click = joint slipping in and out of the capsule)

44

What is the treatment for congenital dislocation

put legs into abduction to activate abductor magnus and bring the head back into the socket