radiology terms Flashcards
capital fracture:
through femoral head
subcapital fracture:
between femoral head and neck
transcervical fracture:
through neck
intertrochanteric fracture:
between lesser and greater trochanters, along intertrochanteric line
subtrochanteric fracture:
under intertrochanteric line, near shaft
why is the lesser trochanter fragment typically displaced in intertrochanteric fractures?
because it is an attachment for iliopsoas
what are sesmoid bones?
small, rounded masses that are embedded in tendons and are usually around joint surfaces.
fx: minimize friction, modify pressure, and alter the direction of a muscle pull
what is the fabella?
sesmoid bone in posterior knee area
attaches to lateral head of gastrocnemius
what surfaces form the patellar-femoral junction?
medial/lateral patellar facets and the medial/lateral trochlear facets of the femur
what is a multipartite patella?
a patella where the ossification center failed to fuse, appearing to be multiple pieces.
NOT to confuse with a fracture
what is the most common type of tibial plateau fracture?
lateral plateau fracture since the lateral plateau is smaller than the medial and is less resistant to axial loading
most severe type of tibial plateau fracture?
type VI
medial plateau fracture and a fracture line between the metaphysis and diaphysis so that they are detached from one another
naming system for tibial plateau fractures:
Schatzker classification
Type I through Type VI
what is a lipohemarthrosis?
bleeding from a fracture
layering in suprapatellar recess of the joint
top layer - fat
bottom layer - blood
what is an osteophyte?
bony lumps (bone spurs) that grow on the bones of the spine or around the joints.
