Significant Structures of the Hip Joint

Question 1

How many ligaments reinforce the articular capsule of the hip?

Answer 1

5 - iliofemoral, pubofemoral, ischiofemoral, transverse acetabular, and the ligament of the femoral head

Question 2

What ligament completes the inferior border of the acetabular fossa and attaches to the acetabular notch?

Answer 2

Transverse acetabular

Question 3

describe the attachments of the ligament of the femoral head (ligamentum capitis femoris)?

Answer 3

originates along the transverse acetabular and attaches to the centre of the femoral head

Question 4

What is the least restricted movement of the hip?
Why?

Answer 4

Flexion - combination of ligaments, capsular fibers, depth of bony socket and bulk of surrounding muscles

Question 5

Fibrous Cartilage

Answer 5

covers the articular surface of the acetabulum and extends like a horseshoe along the side of the acetabular notch

Question 6

What is the main difference between the articular capsule of the shoulder and hip?

Answer 6

capsule of the hip contributes extensively to joint stability

Question 7

Articular Capsule of the Hip extends from?

Answer 7

lateral and inferior surfaces of the pelvic girdle to the intertrochanteric line and intertrochanteric crest of the femur

Question 8

What structures does the articular capsule enclose?

Answer 8

femoral head and neck

Question 9

Acetabular Labrum

Answer 9

circular rim of fibrous cartilage that increases the depth of the acetabulum

Question 10

Where does the hip joint receive its vessels?

Answer 10

the acetabular notch

Question 11

Anterior ligaments of the hip joint?

Answer 11

iliofemoral, pubofemoral

Question 12

Y-ligament of bigelow?

Answer 12

Iliofemoral

Question 13

Posterior ligament of the hip?

Answer 13

ischiofemoral

Question 14

significance of ischiofemoral ligament

Answer 14

fiber direction promotes easy flexion, extension increases tension on the ligaments, stabilizes the vulnerable “extension” of the joint motion

Question 15

Q angle is formed by what axis?

Answer 15

functional longitudinal axis of femur, longitudinal axis of the tibia

Question 16

Coxa Varus

Answer 16

femoral condyle more medial than usual, increase in Q-Angle,

Question 17

Coxa Valgus

Answer 17

Femoral condyle more lateral, decrease in Q-angle

Question 18

Internal rotation glides the femoral head in which direction?

Answer 18

posteriorly or deeper into the acetabulum

Question 19

external rotation glides the femoral head in which direction?

Answer 19

disengages the femoral head from the acetabulum and glides it anteriorly in the acetabulum

Question 20

Pubic Tubercle

Answer 20

insertion for external obliques, medial end of inguinal

Question 21

What are the four axis of the Femur?

Answer 21

transverse, AP, anatomical longitudinal, functional longitudinal

Question 22

AP Axis

Answer 22

passes through femoral head

Question 23

transverse axis

Answer 23

passes through femoral head allowing 85-90 degrees of straight leg flexion. allows leg extension

Question 24

anatomical longitudinal axis

Answer 24

lies in shaft of femur, not a functional axis

Question 25

functional longitudinal axis

Answer 25

runs from femoral head between condyles - would lie just posterior to the line constructed from the ASIS to the middle of the patella