Hip joint Flashcards Preview

Anatomy > Hip joint > Flashcards

Flashcards in Hip joint Deck (26):
1

What type of joint is the hip joint?

A ball and socket synovial joint

2

What are the articulating surfaces in the hip joint?

The head of the femur and acetabulum of the pelvis

3

What are the stabilising ligaments of the hip joint?

The head of femur ligament
The pubofemoral ligament
The iliofemoral ligament
The ischiofemoral ligament

4

How does the acetabulum increase hip joint stability?

It is very deep
It has a fibrocartilaginous collar around it to increase stability.

5

What movements can the hip joint do?

Flexion
Extension
Medial rotation
Lateral rotation
Abduction
Adduction

6

What movements of the hip joint is restricted?

Extension.

7

What muscles aid flexion of the hip joint?

Iliosoas
Rectus femoris
Sartorius

8

What muscles aid extension of the hip joint?

Gluteus maximus
Biceps femoris
semimembranous
semitendinosus

9

What muscles aid abduction of the hip joint?

Gluteus medius
Gluteus minimus
Deep gluteals.

10

What muscles aid adduction of the hip joint?

Adductors longus, brevis and magnus
Pectineus
Gracillis

11

What muscles aid medial rotation of the hip joint?

Gluteus medius
Gluteus minimus
Semitendinosus
Semimembranous

12

What muscles aid lateral rotation of the hip joint?

Biceps femoris
Gluteus maximus
Deep gluteals

13

What are the main arteries that supply the hip joint?

The medial and lateral circumflex femoral arteries

14

What is Hilton's law?

That the nerves extending directly across and acting on a given joint also innervate it

15

What nerves innovate the hip joint?

Femoral nerve
Superior gluteal nerve
Obturator nerve
Nerve to quadratus femoris

16

What is the main cause of a hip fracture in under 40s?

High energy trauma on an extended lower limb

17

What are the main causes of a hip fracture in over 40s?

Falling

18

What is the main risk of a hip fracture?

Avascular necrosis of the femoral head and neck

19

What are the 2 types of dislocation of the femoral head?

Aquired
Congenital

20

What can cause congenital dislocation of the femoral head?

During development the femoral head is not placed into the acetabulum
More likely in girls

21

What are the symptoms of congenital dislocation of the femoral head?

Inability to adbuct the effected joint
Affected limb is shorter
Positive Trendelenburg's sign

22

When can aquired dislocations of the hip joint occur?

Traumatic incidents

23

What are the 2 types of aquired hip joint dislocations?

Posterior - Most common as capsule weakest posteriorly
Anterior

24

How could a posterior aquired dislocation of the hip joint present itself?

The affected limb would be shortened and medially rotated.
May be paralysis of the muscles distal to the knee as the sciatic nerve may be damaged.

25

What can cause anterior aquired dislocations of the hip joint?

Extension, abduction and lateral rotation of the joint.

26

What happens to the joint in an anterior aquired dislocation?

The femoral head ends up inferior to the acetabulum and will often pull the acetabulum labrum with it.