Lecture: Lower Limb 1: Pelvis and Hip Joint

Question 1

Name the area where the 3 hip bones fuse

Answer 1

The acetabulum

Question 2

the 3 bones of the hip?

Answer 2

L and R Inominate (hip) bones

+ Sacrum

Question 3

What contributes to the stability of the hip joint?

Answer 3

Acetabular anatomy
Fibrous capsule around all of joint
Ligaments x3

Question 4

name the ligaments involved in the hip joint

Answer 4

Ileofemoral
Pubofemoral
Ischofemoral

Question 5

What is the acetabular labrum

Answer 5

rim of cartilage which deepens the articular surface

nothing inferior in acetabulum, just cartilage (acetabular notch)

Question 6

describe the iliofemoral ligament

Answer 6

covers superior and anterior
from ilium to femur
strongest ligament
spiral rounds
prevents hyperextension of hip while standing

Question 7

describe the pubofemoral ligament

Answer 7

covers inferior and anterior

prevents excessive abduction

Question 8

describe the ischiofemoral ligament

Answer 8

posterior

weakest one

Question 9

typical injuries at the hip?

Answer 9

fractured Neck of Femur (#NOF)
dislocation of hip joint
fractures of the pelvic ring

Question 10

characteristics of posterior dislocation of the hip joint

Answer 10

limb appears shortened and internally rotated

sciatic nerve injury may occur

Question 11

characteristics of anterior dislocation of the hip?

Answer 11

occurs when force is applied during extreme abduction with external rotation of the hip
limb appears externally rotated, abducted and flexed

Question 12

What is Developmental Dysplasia of the Hip (DDH)?

Answer 12

acetabulum not deep enough to accomodate head of femur

varies in severity

Question 13

what movements are possible at the hip?

Answer 13

flexion
extension
abduction
adduction
external/internal rotation