Exam Questions and CORRECT Answers
Sir John Charnley - CORRECT ANSWER - "Father of modern joint arthroplasty"
cobalt chrome - CORRECT ANSWER - what is the head made out of?
titanium - CORRECT ANSWER - what is the stem made out of?
titanium - CORRECT ANSWER - what is the cup made out of?
polyethylene - CORRECT ANSWER - what is the inside of the cup made out of?
titanium - CORRECT ANSWER - total hips are made mostly out of?
Neck angle - CORRECT ANSWER - Femoral axis and femoral neck axis
124.7 - CORRECT ANSWER - what is the average neck angle
femoral offset - CORRECT ANSWER - Distance from femoral head center and femoral
axis
neck resection level - CORRECT ANSWER - this is how you measure what?
One finger proximal to lesser troch
femoral neck length - CORRECT ANSWER - Level of neck resection to the femoral head
center, along femoral neck axis
, femoral leg length - CORRECT ANSWER - Measured vertically, from level of medial
neck resection, often referred to as the Calcar, to the femoral head center
calcar - CORRECT ANSWER - what is the femoral leg length often referred to as?
pivot point - CORRECT ANSWER - head center
center of the universe in hip biomechanics
where the mechanical axis starts and all measurements are based off of it
the goal at surgery should be to duplicate this position as accurate as possible
coxa vera - CORRECT ANSWER - neck angle
< 120 degrees
normal - CORRECT ANSWER - neck angle
120-135 degrees
coxa valga - CORRECT ANSWER - neck angle
> 135 degrees
coxa valga - CORRECT ANSWER - "vertical neck"