Athroplasty Flashcards
What is athroplasty
surgery performed to relieve pain and restore range of motion by realigning or reconstructing a dysfunctional joint
What does a hip prothesis consist of (type of joint)? What is it made from?
ball and socket
ball- metal or ceramic
socket- plastic, ceramic or metal
What can be visualized on US that cannot be seen with CT or MRI?
periprosthetic fluid collections
What type of transducer is used when scanning athroplasty
low freq <10MHZ and curvilinear or linear w/ a trapezoidal function
What will the metal components appear as
hyperechoic w/ posterior reverb artifacts
The native bone of acetabulum and femur will appear as
hyperechoic but with posterior acoustic shadowing
A normal hip athroplasty may show
minimal hypoechoic tissue along the femoral neck component or no tissue at all
If we see abnormal fluid, what it look like and where it at
anechoic/hypoechoic
over the femoral neck component
On a knee replacement x-ray, do we see the plastic spacer in between?
no
