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Lower Extremities MRI Conference
Musculoskeletal Imaging
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Training Collections
Library Memberships
On-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Practice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Unlock access to our full Course Library and all self-paced Fellowships.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
For Training Programs
Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
15 topics, 1 hr. 25 min. of video
General Features of the Meniscus
3 m.Anatomy of the Meniscus
5 m.Meniscal Morphology
4 m.Meniscal Failure Part 1
7 m.Meniscal Failure Part 2
8 m.Meniscal Failure Types
7 m.Longitudinal Horizontal Tears
6 m.Radial Tears
8 m.Free Edge Tears
3 m.Displaced Meniscal Tears
7 m.Meniscal Root Ligament Tears
8 m.Popliteomeniscal Ligaments
5 m.Meniscus: Diagnostic Pitfalls
6 m.Discoid Meniscus and Meniscal Movement
7 m.Pathologic Conditions
7 m.8 topics, 28 min. of video
Insufficiency Fracture with Root Tear
6 m.Posterior Lateral Meniscus Horn Tear
4 m.Wrisberg Rip & Ligament of Humphrey Tear
5 m.Posterior Root Tear
2 m.RAMP Lesion with ACL Tear
4 m.Meniscocapsular Injury with Semimembranosus Tear
2 m.Posterior Meniscus Injury, Radial Tear, Ligamnet of Humphrey Injury
5 m.Meniscus Question and Answer Session
4 m.10 topics, 43 min. of video
Ligament Structure
8 m.Ligament Classification & Attachments
3 m.Ligaments: Restraints
5 m.Muscle Antagonists & Agonists
3 m.Osseous Anatomy
3 m.Injury Mechanisms: Basic Concepts & External Forces
7 m.Inury Mechanisms: Internal Forces
4 m.Types of Force: 5 Scenarios
9 m.Pure Distraction Injury
2 m.Injury Mechanisms: Summary
5 m.11 topics, 46 min. of video
Anterior Cruciate Ligament Anatomy
6 m.Types of Force: 5 Scenarios
4 m.Manifestations of Injury
5 m.Mechanisms of Injury
3 m.MR Imaging: Osseous/Cartilaginous Findings
9 m.MR Imaging: Other Findings
3 m.MR Imaging: Some Specific Lesions
4 m.MR Imaging: Partial ACL Tears
4 m.PCL Anatomy & Pathology
4 m.Mechanisms of Injury in the PCL
4 m.Patterns of Injury in the PCL
5 m.7 topics, 23 min. of video
10 topics, 42 min. of video
Anatomy of the Medial Supporting Structures
5 m.Anterior Portion of the Supporting Structures
8 m.Middle Portion of the Supporting Structures
4 m.Posterior Portion of the Supporting Structures
5 m.Patterns of Injury: Valgus Motion
4 m.Patterns of Injury: Rotational Motion
2 m.Grades of Injury in the Supporting Structures
6 m.Bone Contusions
5 m.Diagnostic Considerations in the Pediatric Knee & Pelligrini-Stieda Disease
4 m.Diagnostic Considerations
4 m.12 topics, 39 min. of video
Lateral Ligament Anatomy
5 m.IT Band Syndrome
4 m.Accessory ITB Meniscal Ligament
2 m.Kaplan Fiber System
4 m.Kaplan Fiber Injury
2 m.Gerdy Tubercle Avulsion & Segond Fractures
5 m.Anterolateral Ligament
4 m.Posterolateral Corner
4 m.Fibular Colateral Ligament
6 m.The Biceps Femoris
4 m.PLC Big 3 & The Popliteus Fibular Ligament
3 m.The Fabellofibular Ligament & The Arcuate Ligament
5 m.7 topics, 37 min. of video
13 topics, 45 min. of video
Imaging the Post Surgical Knee
3 m.ACL Reconstruction
7 m.Graft Fixation and Motion
2 m.Radiographic Assessment & The Femoral Tunnel
4 m.Tibial Tunnel Placement
3 m.Ligamentization
3 m.ACL Reconstruction Complications
10 m.Foreign Body Reaction
3 m.Cyclops Lesions & Nerve Injury
4 m.MPFL Reconstruction
4 m.Lateral Ligament Procedures
3 m.Lateral Extra Articular Tenodesis
2 m.PCL Reconstruction
4 m.9 topics, 45 min. of video
12 topics, 46 min. of video
Anatomy of the Popliteal Fossa
3 m.Popliteal Cysts & Masses
6 m.Synovial Lining Disease
3 m.Differential Diagnoses in the Popliteal Fossa
6 m.Popliteal Fossa Contents
6 m.Popliteal Nerves & Trauma
4 m.Popliteal Vasculature
5 m.Popliteal Artery & Abberant Tibial Artery
3 m.Popliteal Artery Trauma
3 m.Popliteal Artery Aneurysm
3 m.Cystic Adventitial Disease
6 m.Popliteal Artery Entrapment
6 m.6 topics, 42 min. of video
0:00
So let's talk formally about the antola ligament.
0:04
The, uh, the
0:06
terminology about this ligament is somewhat confusing.
0:10
Um, and just to give you a brief history,
0:12
it was originally described in 2007 by Vira
0:15
and described just as the a LL.
0:18
But about five years later, another group by Vincent
0:21
basically said that we're talking about the same ligament.
0:24
The A LL is the mid third lateral capsular ligament.
0:29
But this was popularized, um, in 2013 by this article
0:33
by clays this anatomic description
0:35
where they described this a LL
0:37
and unfortunately described it
0:39
as a newly discovered ligament.
0:41
And the lab press sort of ran with it, thinking that, uh,
0:44
we had not known about this ligament for thousands of years,
0:47
but when in fact this is the same thing
0:49
that we have known about the mid third
0:50
lateral capsular ligament.
0:52
But we can identify it on MRI.
0:54
And this is again, how the lateral gict vessels can be a
0:58
nice useful landmark for looking
1:00
for this specific ligament instead
1:02
of the superior lateral canicula vessels.
1:05
This is the inferior lateral gen vessels
1:07
and again, red for artery.
1:09
And we have two paired veins
1:10
and we can see this ligament basically surrounding this
1:14
peripheral, uh, mid body of the lateral meniscus.
1:17
And here from this clay article two, they can,
1:20
they show these, um,
1:21
vessels traveling within the ant lateral ligament,
1:24
basically hugging the periphery of the body
1:26
of the lateral meniscus.
1:29
So here I provide with you a couple of different, uh,
1:33
different, uh, examples of the an lateral ligament.
1:37
Here's a patient who actually presented with insidious, uh,
1:40
lateral knee pain, no history of specific injury,
1:44
and she actually had aral insufficiency fracture.
1:47
And Dr. Resnick showed some fairly nice examples of this.
1:50
You can see the extended bone marrow p uh, edema pattern,
1:53
and you can see this focal thickening
1:55
of the subc chondral bone plate reflecting the presence
1:57
of this insufficiency fracture.
1:59
Again, no specific injury,
2:01
but the reactive soft tissue edema about the lateral aspect
2:05
of the knee does afford us the ability
2:07
to visualize the ant lateral ligament, again,
2:10
surrounding those lateral inferior gict vessels.
2:14
Here's a patient who, uh, suffered a basketball injury
2:17
and here you can see fibers of the ant,
2:20
lateral ligament inferiorly, a little bit thickened, uh,
2:23
and emus and also,
2:24
and its peripheral attachments to lateral meniscus.
2:27
A little bit thickened, but overall no gross
2:30
disruption or discontinuity.
2:32
So this is more of a ligamentous sprain.
2:34
Another patient, uh, juujitsu injury.
2:37
If we look at the superior fibers, we can see
2:39
that they're clearly disrupted
2:40
and even sort of rolled up on, on themselves,
2:43
whereas the inferior
2:44
or meniscal tibial component remains intact.
2:49
If we, uh, move to onto this last example of a patient
2:51
with a BA basketball injury injury, similar findings, again,
2:55
find those lateral inferior gent vessels
2:57
and you can find the peripheral, uh, meniscal tibial portion
3:00
of that ant lateral ligament.
3:02
And if we move up superiorly, we can see
3:04
that it's disrupted from its femoral attach.
Interactive Transcript
0:00
So let's talk formally about the antola ligament.
0:04
The, uh, the
0:06
terminology about this ligament is somewhat confusing.
0:10
Um, and just to give you a brief history,
0:12
it was originally described in 2007 by Vira
0:15
and described just as the a LL.
0:18
But about five years later, another group by Vincent
0:21
basically said that we're talking about the same ligament.
0:24
The A LL is the mid third lateral capsular ligament.
0:29
But this was popularized, um, in 2013 by this article
0:33
by clays this anatomic description
0:35
where they described this a LL
0:37
and unfortunately described it
0:39
as a newly discovered ligament.
0:41
And the lab press sort of ran with it, thinking that, uh,
0:44
we had not known about this ligament for thousands of years,
0:47
but when in fact this is the same thing
0:49
that we have known about the mid third
0:50
lateral capsular ligament.
0:52
But we can identify it on MRI.
0:54
And this is again, how the lateral gict vessels can be a
0:58
nice useful landmark for looking
1:00
for this specific ligament instead
1:02
of the superior lateral canicula vessels.
1:05
This is the inferior lateral gen vessels
1:07
and again, red for artery.
1:09
And we have two paired veins
1:10
and we can see this ligament basically surrounding this
1:14
peripheral, uh, mid body of the lateral meniscus.
1:17
And here from this clay article two, they can,
1:20
they show these, um,
1:21
vessels traveling within the ant lateral ligament,
1:24
basically hugging the periphery of the body
1:26
of the lateral meniscus.
1:29
So here I provide with you a couple of different, uh,
1:33
different, uh, examples of the an lateral ligament.
1:37
Here's a patient who actually presented with insidious, uh,
1:40
lateral knee pain, no history of specific injury,
1:44
and she actually had aral insufficiency fracture.
1:47
And Dr. Resnick showed some fairly nice examples of this.
1:50
You can see the extended bone marrow p uh, edema pattern,
1:53
and you can see this focal thickening
1:55
of the subc chondral bone plate reflecting the presence
1:57
of this insufficiency fracture.
1:59
Again, no specific injury,
2:01
but the reactive soft tissue edema about the lateral aspect
2:05
of the knee does afford us the ability
2:07
to visualize the ant lateral ligament, again,
2:10
surrounding those lateral inferior gict vessels.
2:14
Here's a patient who, uh, suffered a basketball injury
2:17
and here you can see fibers of the ant,
2:20
lateral ligament inferiorly, a little bit thickened, uh,
2:23
and emus and also,
2:24
and its peripheral attachments to lateral meniscus.
2:27
A little bit thickened, but overall no gross
2:30
disruption or discontinuity.
2:32
So this is more of a ligamentous sprain.
2:34
Another patient, uh, juujitsu injury.
2:37
If we look at the superior fibers, we can see
2:39
that they're clearly disrupted
2:40
and even sort of rolled up on, on themselves,
2:43
whereas the inferior
2:44
or meniscal tibial component remains intact.
2:49
If we, uh, move to onto this last example of a patient
2:51
with a BA basketball injury injury, similar findings, again,
2:55
find those lateral inferior gent vessels
2:57
and you can find the peripheral, uh, meniscal tibial portion
3:00
of that ant lateral ligament.
3:02
And if we move up superiorly, we can see
3:04
that it's disrupted from its femoral attach.
Report
Faculty
Donald Resnick, MD
Professor Emeritus, Department of Radiology
University of California, San Diego
Mini N. Pathria, MD, FRCP(C)
Division Chief, Musculoskeletal Imaging
University of California San Diego
Eric Y. Chang, MD
Adjunct Professor, Radiology
University of California, San Diego
Brady K. Huang, MD
Clinical Professor of Radiology
UC San Diego Medical Center
Tags
Musculoskeletal (MSK)
MRI
Knee
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