UNC MSK Course Day 3 Lab XR UNKNOWNS(for self study)

Anatomy, name?

Ilium

Anatomy?

Ischium

Anatomy?

Pubic and ischial rami

Anatomy?

Acetabulum and femoral head

Anatomy?

Pubic symphysis and Obturator foramen

Anatomy?

Femoral neck Greater trochanter Lesser trochater

Name of bone?

Innominate

Pathology?

Fracture of Ilium into acetabulum

Pathology?

Fracture of Ilium into acetabulum Swelling & hematoma iliacus, gluteus maximus

Pathology?

Dislocation SI joint Fractures rami Fracture femoral neck

Pathology?

Anterior dislocation hip

Anatomy?

Lateral or frog leg view of hipGreater trochanterLesser trochanter

Pathology?

Fracture of femur in child

Anatomy?

PatellaFibular headMed & lat epicondylesMed & lat condylesMed & lat tibial plateaus

Pathology?

Varus knees with mild medial compartment degenerative arthritis.

Patient has had a valgus producing osteotomy on R to relieve pressure on medial compartmentNormal is 5-10 degrees valgus alignment between the fermoral and tibial shafts. Is 0 degrees in this patients L knee and so he is actually in varus mechanically.Medial compartment joint space narrowing and small osteophyte

Anatomy?View?

Anatomy?PatellaView?Sunrise view

Pathology?

Pathology?

Patella fracture.Difficult to see on AP view.

Pathology?

Bicondylar tibial plateau fracture.

Anatomy?

This is a coronal plane MRI. What are the arrowed structures?

ACLPCLMCL

Medial and lateral meniscii.

This is a saggital plane MRI. What compartment of the knee is this slice through?

What are these structures?The presence of the fibula tells us it is through the lateral compartment.

Patellar tendon (ligament)Anterior and posterior horns of the lateral meniscusThe presence of the fibula tells us it is the lateral compartment.

What is this structure?

ACL

What is this structure?

PCL

Pathology?

Degenerative tear posterior horn medial meniscus (its not solid black like it should be).

Healthy lateral meniscus is solid black

T2 weighted MRI of same degenerative tear posterior horn medial meniscus.

Pathology?

Fracture tibia and fibula

Cast

Pathology?

Pathology?

Fracture of fibula (hard to see on lateral view - this is why it is often said that you MUST have two views)

Anatomy?

Anatomy?Medial malleolusLateral malleolusTalus

AP viewMortise view

Anatomy?

Anatomy?Posterior malleolusTalar bodyTalar neckTalar headCalcaneusNavicularCuboid

Pathology?

Pathology?Fracture fragment from talar dome

Pathology?

Pathology?Bimalleolar ankle fracture.

Pathology?

Pathology?Bimalleolar ankle fracture with posterior subluxation of talus in ankle mortise

Pathology?

Pathology?Fracture of lateral malleolus with rupture of deltoid ligament and lateral shift of talus in mortise

Pathology?

Pathology?Fracture of talar neck and body

Anatomy?

Anatomy?

Sesamoids

Medial cunieformNavicularLateral cuneiformCuboidOs peroneus

Pathology?

Pathology?

Fracture, base of 5th metatarsal

Pathology?

Pathology?

Fracture 5th metatarsal shaft

Incidental note: bipartite medial sesamoid

Alaska, inside passage