Hip Joints and Ligaments

Question 1

What type of joint is the sacroiliac joint

Answer 1

Synovial joint with fibrous component

Question 2

Sacroiliac Joint allows limited _____ and _______

Answer 2

Sacroiliac joint allows limited gliding and rotation.

Question 3

Sacroiliac Joint is quite mobile in who?

Answer 3

Sacroiliac joint is quite mobile in children.

Question 4

The amount of motion in the sacroiliac joint ______ with age

Answer 4

The amount of motion in the sacroiliac joint decreases with age

Question 5

Mobility in the sacroiliac joint is lower in who? Men or women.

Who’s sacroiliac joint may fuse when they become elderly?

Answer 5

Mobility is lower in men than in women, may fuse in elderly males

Question 6

Sacroiliac joint surfaces are ______ in adults

Answer 6

irregular

Question 7

Sacroiliac joint surfaces are irregular in adults. Why?

Answer 7

It provides an interlocking surface ideal for bearing weight

Question 8

What are the main supporting ligaments of the sacroiliac joint?

Answer 8

1) Anterior and posterior sacroiliac ligaments
2) Interosseous sacroiliac ligament
3) Sacrospinous and Sacrotuberous ligaments

Question 9

What is the main accessory ligament of the sacroiliac joint?

Answer 9

Iliolumbar ligament

Question 10

When under load the anterior sacral promontory tends to rotate ______ and _______

What is this called?

Answer 10

Inferiorly and anteriorly

This is called Nutation

Question 11

Which ligament limits nutation by 1 degree?

Answer 11

Nutation is limited by anterior sacroiliac ligament by 1 degree

Question 12

Which two ligaments limit nutation by 2 degrees?

Answer 12

Sacrotuberous and sacrospinous ligaments limit nutation by 2 degrees

Question 13

Which two ligaments maintain joint apposition during nutation?

Answer 13

Interosseous and sacrotuberous ligaments maintain joint apposition during nutation

Question 14

Counternutation is limited by which ligament?

Answer 14

Counternutation is limited by the posterior sacroiliac ligament (relaxed in nutation)

Question 15

If the sacroiliac joints are working this means there is less stress on what two things?

Answer 15

If SI joints are workmen there is less stress on the femur and Intervertebral discs

Question 16

What type of joint is the pubic symphysis?

Answer 16

Cartilaginous joint (fibrocartilaginous, secondary cartilaginous, or symphyseal joint)

Question 17

Pubic Symphysis is two bony surfaces covered in what type of cartilage?

Answer 17

hyaline cartilage

Question 18

Pubic symphysis is joined by the ______ ______ disc

Answer 18

Interpubic fibrocartilaginous

Question 19

What joint has limited motion that increases during the latter stages of pregnancy?

Answer 19

pubic symphysis

Question 20

the _______ joint forms a ____ _____ chain with the sacroiliac joints

Answer 20

The pubic symphysis joint forms a closed kinetic chain with the sacroiliac joints

Question 21

which ligaments support the pubic symphysis?

Answer 21

superior, posterior, and inferior (arcuate) pubic ligaments

Question 22

The hip joint is formed by the ____ and ____

Answer 22

Hip joint is formed by the femur and acetabulum

Question 23

The hip joint is what type of joint?

Answer 23

ball and socket synovial joint

Question 24

Hip joint allows what type of movement?

Answer 24

Flexion/extension
abduction/adduction
medial/lateral rotation
circumduction

Question 25

The hip joint is deepens by what?

Answer 25

acetabular labrum (fibrocartilage)

Question 26

The acetabular fossa is non articular and is cover by what?

Answer 26

a fat pad

Question 27

The hip joint is a strong fibrous joint capsule supported by what ligaments?

Answer 27

Iliofemoral, pubofemoral, and ischiofemoral

Question 28

Where does the iliofemoral ligament attach? What shape is it?

Answer 28

AIIS and acetabular rim to the intertrochanteric line of the femur Y shaped

Question 29

What is the strongest ligament in the body?

Answer 29

Iliofemoral

Question 30

What does the iliofemoral ligament help prevent?

Answer 30

Hyperextension of the hip joint in standing

Question 31

What is close packed position of the hip joint?

Answer 31

Extension, medial rotation, and slight abduction Where it is most stable and least likely to dislocate

Question 32

Where does the pubofemoral ligament attach?

Answer 32

1) Obturator crest | 2) Anterior to lesser trochanter of femur

Question 33

What does the pubofemoral ligament do?

Answer 33

Prevents excessive abduction

Question 34

Where does the ischiofemoral ligament attach?

Answer 34

1) posterior surface of the acetabular rim | 2) medial to base of greater trochanter

Question 35

What does the ischiofemoral ligament prevent?

Answer 35

Prevents excessive rotation

Question 36

Three main functions of ligaments of the hip

Answer 36

1) All combine to support strong capsule 2) allow little or no distraction (bones being far apart and dislocating) 3) will support the head of the femur during weight bearing even if the hip joint is dislocated (iliofemoral ligament)

Question 37

Where does the ligament of the head of the femur attach?

Answer 37

1) acetabular notch and transverse acetabular ligament | 2) fovea of head of femur

Question 38

True/False | The ligament of head of femur is an important stabilizer

Answer 38

false

Question 39

What does the ligament of head of femur contain?

Answer 39

Contains artery of the head of the femur

Question 40

the ligament of head of femur is intra________ but extra________

Answer 40

intracapsular but extrasynovial (which means it travels within the joint capsule but not within the synovial membrane)

Question 41

Which ligament crosses the acetabular notch? What does it prevent?

Answer 41

Transverse acetabular ligament and it prevents inferior dislocation of femur

Question 42

Which ligament encircles the neck of the femur (runs at 90 degree angle to other ligaments)

Answer 42

orbicular zone

Question 43

What is it called when there is a decrease in the angle of inclination of the neck of the femur relative to the shaft

Answer 43

Coxa Vara

Question 44

Vara or various is the term used to describe any bone or joint that is deformed in a way that makes the distal part deviate ____ _____ _____.

Answer 44

towards the midline

Question 45

Coxa Vara causes a person to have ______ legs

Answer 45

bowed legs