Hip Anatomy - Week4
Decreases in femoral offset result in: - ANS-Greater force required by abductor
musclesto balance the pelvis; May result in impingement at the extremes of movement
and soft tissue laxity; moves the femur closer to the pelvis
Increases in femoral offset result in: - ANS-Decrease impinement; improves soft tissue
tension; moves the femur laterally
AVN occurs when - ANS-The blood supply is disrupted
What bones make up the hip? - ANS-Pubis
Ilium
Ischium
Proximal Femur
Which of the following conditions are visible on radiograph?
*Femoral Head deformity
*Joint space narrowing
*Osteophytes
*Cysts - ANS-All of the above
An intracapsular, or femoral neck fracture, is always non-displaced. True or False -
ANS-False
A bipolar prosthesis has a femoral head that swivels at the junction with the stem. What
is the most important benefit in using a bipolar? - ANS-Helps reduce stress on the
articular cartilage of the acetabulum
Which one of the following choices is the best characterization of AVN - ANS-areas of
dead bone and marrow; generally extends to and involves the subchondral plate
In the classification of bone types in the femur, Type B: - ANS-There is still a distal flare
but the metaphyseal and diaphyseal cortical margins have thinned
Which stem might a surgeon select for a patient with a "stove pipe" type femur, a
previous fracture, or a previous osteotomy (where the canal alignment has been
altered)? - ANS-Cemented
Decreases in femoral offset result in: - ANS-Greater force required by abductor
musclesto balance the pelvis; May result in impingement at the extremes of movement
and soft tissue laxity; moves the femur closer to the pelvis
Increases in femoral offset result in: - ANS-Decrease impinement; improves soft tissue
tension; moves the femur laterally
AVN occurs when - ANS-The blood supply is disrupted
What bones make up the hip? - ANS-Pubis
Ilium
Ischium
Proximal Femur
Which of the following conditions are visible on radiograph?
*Femoral Head deformity
*Joint space narrowing
*Osteophytes
*Cysts - ANS-All of the above
An intracapsular, or femoral neck fracture, is always non-displaced. True or False -
ANS-False
A bipolar prosthesis has a femoral head that swivels at the junction with the stem. What
is the most important benefit in using a bipolar? - ANS-Helps reduce stress on the
articular cartilage of the acetabulum
Which one of the following choices is the best characterization of AVN - ANS-areas of
dead bone and marrow; generally extends to and involves the subchondral plate
In the classification of bone types in the femur, Type B: - ANS-There is still a distal flare
but the metaphyseal and diaphyseal cortical margins have thinned
Which stem might a surgeon select for a patient with a "stove pipe" type femur, a
previous fracture, or a previous osteotomy (where the canal alignment has been
altered)? - ANS-Cemented
