Victoria Clague, MD

Left ventricle Aortic arch SVC Knee anatomy cases Leg anatomy fractures Vascular

FRONTALLATERAL

FRONTALLATERAL patella Medial femoral condyle Lateral femoral condyle Tibia Fibula

MR Image Orientation Exams usually consistent of multiple sequences which try to maximize imaging of either water, fat, vessels or soft tissue This is a T1 image and fluid is dark, tendons are dark, Fat is bright

Knee MR - Coronals Top to bottom: Distal femur Cartilage Menisci Cartilage Tibial plateau Outside: Iliotibial band Medial collateral ligament Medial Lateral

MR Knee – Coronals Top to bottom: Femoral condyles Cartilage Menisci Cartilage Tibial plateau Fibula Outside: Fibular collateral ligament

MR Knee - Sagittal Quadriceps tendon Patella Patellar Tendon Joint spac Distal femur Tibial plateau Anterior cruciate ligament Popliteal artery ACL

MR Knee - Sagittal Posterior cruciate ligament

MR Knee – Sagittal Lateral Very lateral Distal femur Cartilage Lateral Meniscus Tibial plateau / Fibula Gastronemius mm

Left ventricle Aortic arch SVC Knee anatomy cases Lower leg anatomy fractures Vascular

1 month post operative films

Post operativeToday in the ED

 Dislocation of knee replacement  Risk for all arthroplasties, especially hip

 Imaging findings  Fracture line through the tibial plateau without displacement

 Imaging findings  Fracture line through the tibial plateau without displacement

NormalCase

Medial meniscal tear Often associated with anterior cruciate ligament tears and medial collateral ligaments tears

Normal ACL Complete ACL tear Companion case – status post skiing accident

Case coronalCase sagittal ACL tear, MCL sprain, and Medial meniscus tear

LATERALFRONTAL TibiaFibula

LATERALFRONTAL

LATERALFRONTAL Tibia Talus Fibula Calcaneus

Normal

Fracture

 Distal fibular fracture  Ankle mortise disrupted – indicates ligament injury

LATERAL

Calcaneus Talus Achille’s Tendon Plantar fascia

Phalanges Metatarsals Tarsals

Common iliacs Internal iliacs (II) --Posterior division ( to gluteals) --Anterior division External liliacs (EI) --Inferior epigastric arteries (IEG) Common femoral (CFA) --Profunda branches (PR) AO CI EI II IEG CFA PR

Femoral artery Profunda branches FA PR

Lower leg Popliteal artery Anterior tibial artery Tibioperoneal trunk - Posterior tibial - Peroneal

A B C D

A B C