Hip 2 Flashcards
Will flexion, internal rotation, and adducted position make the hip joint more stable?
No it makes it unstable.
What are the 3 types of femoral trabeculae?
- vertical- compression on femoral head. 2. Acruate- bending of neck. 3. Intertrochanteric- torsion between trochanters.
What happens to the femoral trabeculae with age?
Vertical trabelculae are saved and others are depleted in osteoporosis.
Loss of the arcuate and intertrochanteric trabeculae in elderly leads to what?
Femoral neck fracutures in the weak cortical zone.
Pelvic trabeculae direct forces from acetabulum to where?
SI.
What is gynecoid?
Like a women.
What are gynecoid pelvic lines of stress like?
Larger oval outlet.
What are android pelvic lines of stress like?
Smaller heart haped outlet.
What are the lines of force transfer like for the pelvic lines of stress while sitting and standing?
Sitting- ischium —> SI joint and sacrum. Standing- femur —-> SI joint and sacrum.
What are hip joint ligaments like?
Very strong.
How many tight packed positions of the hip are there?
Two and it is one of the most stable joints in adults.
What is the shape of the iliofemoral ligament and it is aka?
Y and aka ligament of bigalow.
What is the hip ligament that is not structurally significant and why is it there?
Ligamentum teres and it mainly supports Blood vessels.
Which hip ligament is the strongest?
Y-ligament aka iliofemoral ligament aka ligament of bigalow.
