Imaging of the lower limb Flashcards Preview

Locomotor > Imaging of the lower limb > Flashcards

Flashcards in Imaging of the lower limb Deck (24):
1

Describe the pathologies of the hip that most commonly occur at each age group? 

Young - congenital dislocation

Girls - capital femoral epiphysis disintegration 

Boys - slipped upper femoral epiphyses

Adults - osteoarthritis

Elderly - fractures 

2

Describe the orientation of the sacroiliac joint?

Angled at 45 degrees to the coronal plane 

Oblique

3

Describe the boundaries that make up the greater and lesser pelvis?

Greater pelvis: superior bony margin of iliac crest

Lesser pelvis: promontory, arcuate line, pectineal line, pubic symphysis

4

Describe the locations of the anterior and posterior columns?

5

Identify the labels on this image?

6

Identify the labels on this image?

7

Describe the tear drop structure in the hip?

Why is it useful?

Inner margin of hip joint on one side, quadrilateral plate on the other

Helps to tell if hip is migrating medially 

8

What is the angle of the neck of the femur?

120 degrees

9

Describe the angles in this picture?

10

At what age does the femoral head appear?

6-9 months

11

Describe the difference between these two images?

Upper epiphyses is collapsed and sclerotic 

12

Describe the appearrance of the epiphyses at 10-14 years?

Bones fused

Still see a little bit of scar

13

Identify the labels in this image?

Scelrotic line

Remnants of epiphyseal scar

14

Identify the labels in this image?

15

What is MRI used to view in the knee?

Marrow

Menisci

Tendons

Ligaments

16

Which tissues are suppressed in T2 weighted musculoskeletal imaging?

Fat suppression

Fat and bone marrow dark

17

Identify the labels in this image?

18

Identify the labels in this image?

19

Identify the labels on this image?

20

Describe the signal intensity of ligaments?

Low signal structures 

21

Describe the difference in the menisci?

Lateral is shorter and rounder, more C shaped 

22

Identify the labels in this image?

23

Describe how the ACL is captured in imaging?

Why?

Sagittal image, slightly oblique

ACL is slightly oblique 

24

Describe the fibres of the ACL?

Two bundles that twist around each other