Y2-MMB(044-047)Computer Lab The Knee Joint Flashcards

1
Q

Thigh MRI

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Point too PCL and ACL ligaments

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q
A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Knee MRI

A
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Knee MRI :

what is the structure indicated with a C-shaped low density signal ?

A

Knee Menisci

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Knee MRI ;
What is that low signal structure ?

A

Knee meniscus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Knee MENISCI is dark/light on all MRI sequences

A

Dark on all sequences

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Point to the ant. and post. knee MENISCI and describe their appearance on MRI

-How to differentiate between ant. & posterior ?

A

-Bow tie appearance in sagittal cut
-Dark on all sequences

-Post horn of medial meniscus larger than ant horn

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe Grade 1 signal of MENISCI Injury

A

globular hyper Intense signal within meniscus ,
- asymptomatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Describe Grade 2 signal of MENISCI Injury

A

linear hyper Intense signal not reaching articular surface.
-May or may not be symptomatic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Describe Grade 3 signal of MENISCI Injury

A

linear hyper Intense signal reaching articular surface.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Grade 1 Meniscial Injury :
- globular hyperintense signal within meniscus.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Grade 2 Meniscial Injury :
-linear hyperintense signal not reaching articular surface.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Grade 3 Meniscial injury (tear) :
- linear hyperintense signal reaching articular surface.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Grade 1 Meniscial Injury
-globular hyperintense signal within meniscus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Grade 2 Meniscial Injury
- linear hyperintense signal not reaching articular surface.

18
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Grade 3 Meniscial Injury (tear) -
linear hyperintense signal reaching articular surface.

19
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Grade 4 Meniscial Injury (tear)
– complex tear reaching both articular surfaces

20
Q

knee MRI sagital cut , point to the lesion and diagnose

A
21
Q

knee MRI sagital cut , point to the lesion and diagnose

A

Double PCL sign ; indicating Bucket handle meniscal tear

22
Q

What is Discoid meniscus ?

A

A congenital disorder , a discoid meniscus is thicker than normal, and often oval or disc-shaped. It is more prone to injury than a normally shaped meniscus.

-Lateral meniscus more commonly affected

23
Q

Knee MRI , point to the lesion and diagnose

A

Discoid meniscus ;
-Extends upto intercondylar notch

24
Q

Knee MRI , point to the lesion and diagnose

A

ACL Sprain :
- Intrinsic bright signal with preserved fibers contiuity

25
Q

Knee MRI , point to the lesion and diagnose

A

PCL Sprain :
- Intrinsic bright signal with preserved fibers continuity

26
Q

Knee MRI , point to the lesion and diagnose

A
27
Q

Knee MRI , point to the lesion and diagnose

A
28
Q

Knee MRI , point to the lesion and diagnose

A
29
Q

Knee MRI , point to the lesion and diagnose

A
30
Q

Knee MRI , point to the lesion and diagnose

A
31
Q

Knee MRI , point to the lesion and diagnose

A
32
Q

Knee MRI , point to the lesion and diagnose

A

Intrinsic bright signal indicating sprain

33
Q

Knee MRI , point to the quadriceps tendon and diagnose the abnormality

A
34
Q

What is Chondromalacia Patellae ?

A

softening and degeneration of the articular hyaline cartilage of the patella and is a frequent cause of anterior knee pain.

35
Q

Define Osteochondritis Dissecans

A

Osteochondritis dissecans (OCD) is the end result of the aseptic separation of an osteochondral fragment with the gradual fragmentation of the articular surface and results in an osteochondral defect. It is often associated with intra-articular loose bodies.

36
Q

Define Baker’s cyst

A

Baker cysts, or popliteal cysts, are fluid-filled distended synovial-lined lesions arising in the popliteal fossa between the medial head of the gastrocnemius and the semimembranosus tendons via a communication with the knee joint. They are usually located at or below the joint line.

They represent neither a true bursa nor a true cyst, as they occur as a communication between the posterior joint capsule and the gastrocnemius-semimembranosus bursa.

37
Q

Point to the lesion and diagnose

A
38
Q

Point to the lesion and diagnose

A

ACL sprain

39
Q

Knee MRI shows 2 abnormalities , point and say what they are

A
40
Q
A

ACL TEAR

41
Q
A

PCL sprain

42
Q
A

Torn ACL