Hip Joint

Question 1

What type of joint is the hip joint?

Answer 1

Synovial ball and socket

Question 2

What are the articular surfaces of the hip joint?

Answer 2

Head of femur with the acetabulum of the pelvis and labrum

Question 3

Describe the capsule of the hip joint?

Answer 3

Strong fibrous capsule attaching to the margins of the acetabulum and intertrochanteric line (anterior) and neck of the femur (posterior)

Question 4

What are the ligaments involved in the hip joint?

Answer 4

Iliofemoral, pubofemoral, Ischiofemoral, Ligametnum Teres and Transverse ligament of acetabulum

Question 5

What helps the stability of the hip joint?

Answer 5

Shape of articular surfaces; associated muscles and ligaments within the joint capsule

Question 6

What are the movements of the hip joint?

Answer 6

Flexion and extension
Abduction and Adduction
Medial and lateral rotation

Question 7

What is known as the lunate surface?

Answer 7

Acetabulum

Question 8

What forms the acetabulum?

Answer 8

Pubis, Ilium and Ischium

Question 9

What is an incomplete ring of cartilage?

Answer 9

Acetabulum

Question 10

What part of the acetabulum is non-articular?

Answer 10

Acetabular fossa

Question 11

What is the labrum?

Answer 11

Fibrocartilaginous rim attached to the acetabular margin

Question 12

What is the function of the labrum?

Answer 12

Deepens the acetabulum and bridges the acetabular notch by attaching to the peripheral edge of the transverse acetabular ligament.

Question 13

Does the labrum contribute to joint stability?

Answer 13

Yes

Question 14

What is the cartilage covering the head of the femur?

Answer 14

Hyaline cartilage

Question 15

What part of the head of the femur is not covered in cartilage?

Answer 15

Fovea capitis

Question 16

Where does ligamentum teres attach to?

Answer 16

Fovea capitis

Question 17

What is a strong triangular shaped ligament?

Answer 17

Iliofemoral Ligament

Question 18

What ligament attaches to the anterior surface of the joint?

Answer 18

Iliofemoral ligament

Question 19

What does the iliofemoral ligament limit?

Answer 19

Extension, lateral rotation, adduction and abduction

Question 20

What ligament strengthens anterior and inferior parts of the joint capsule?

Answer 20

Pubofemoral Ligament

Question 21

Where does the pubofemoral ligament attach?

Answer 21

From iliopubic eminence to inferior part of intertrochanteric line

Question 22

The thinnest region of what ligament is crossed by iliopsoas tendon to reinforce the joint?

Answer 22

Pubofemoral ligament

Question 23

What does the pubofemoral ligament limit?

Answer 23

Extension, lateral rotation and adduction

Question 24

What ligament is less well defined?

Answer 24

Ischiofemoral ligament

Question 25

What ligament spirals around joint capsule posteriorly and laterally?

Answer 25

Ischiofemoral ligament

Question 26

Where does the ischiofemoral ligament attach?

Answer 26

From posterior aspect of acetabulum to superior neck and root of greater trochanter

Question 27

What does the ischiofemoral ligament limit?

Answer 27

Extension, medial rotation and adduction

Question 28

What are the intracapsular ligaments?

Answer 28

Transverse ligament of the acetabulum and ligamentum teres

Question 29

What fills inferior absence of acetabular rim?

Answer 29

Transverse Ligament of acetabulum

Question 30

What forms foramen with notch for passage of nerve and vessels?

Answer 30

Transverse Ligament of acetabulum

Question 31

Ligamentum teres is the ligament that attaches what?

Answer 31

Head of the femur

Question 32

What is the angle between the acetabulum and femoral neck?

Answer 32

30-40 degrees

Question 33

Muscles affecting flexion?

Answer 33

Iliopsoas, rectus femoris, sartorial and pectineus

Question 34

Muscles affecting extension?

Answer 34

Biceps femoris, semimembranosus, semitendinosus, gluteus maximus and adductor magnus

Question 35

Muscles affecting abduction?

Answer 35

Gluteus medius, gluteus minimus, piriformis and sartorius

Question 36

Muscles affecting adduction?

Answer 36

Adductor magnus, adductor longus, adductor brevis, gracili, pectineus and quadratura femoris

Question 37

Muscles affecting medial rotation?

Answer 37

Gluteus minimus and medius

Question 38

Muscles affecting lateral rotation?

Answer 38

Obturator externes, gluteus maximus, gemelli, quadrature femoris and piriformis

Question 39

What is the angle of ROM when hip is active in flexion?

Answer 39

120 degrees

Question 40

What is the angle of ROM when hip is passive in flexion?

Answer 40

145 degrees

Question 41

What is the angle of ROM when hip is active in extension?

Answer 41

20 degrees

Question 42

What is the angle of ROM when hip is passive in extension?

Answer 42

30 degrees

Question 43

How can rotation ROM increase?

Answer 43

When the hip flexion occurs simultaneously