pelvis Flashcards
which PSIS is the one that is dysfunctional? the one that moves first or second
first
what is the purpose of the spring test
assess if sacral base has moved posterior
what is a positive spring test
no springing allowed (non-neutral condition)
what is a negative test for spring test
there is spring allowed (neutral condition)
what is another name for the sphinx test
backward bending test
what does the sphinx test point out
helps point out any asymmetric motion of the sacrum
what position is the patient in for sphinx test
prone
what must a patient do if they are in the supine position and you are evaluating anything with the hips
the patient must do a hip flop
what 3 things must you know for diagnosing sacral dysfunction
deep sacral sulcus, posterior/inferior ILA, spring test/sphinx test
when does the pelvis fuse
by mid 20s
what are the 3 true ligaments of the pelvis
anterior SI, interosseous, posterior SI
what are the 3 accessory ligaments of the pelvis
sacrotuberous, sacrospinous, iliolumbar
what ligament forms the greater and lesser sciatic foramen
sacrospinous
what are the secondary muscles of the pelvis
rectus abdominis, transverse abdominis, obliques, quadrature lumborum
what occurs as the acetabulum travels inferiorly
it gives an apparent increase in leg length
where do the transverse axes of the sacrum occur
at S2
what is the superior transverse axes of the sacrum involved in
respiration
what is the middle transverse sacral axis involved in
sacroiliac motion (bending spine)
what is the inferior transverse sacral axis involved in
iliosacral motion (ambulation)
what axis is rotation occurring around during normal gate
transverse axis
how does the ilium move when walking (in healthy patient)
posterior rotation during forward swing of ipsilateral leg, anterior rotation during backward swing of ipsilateral leg
what are the 3 true ligaments of the pelvis
anterior, interosseous, and posterior SI ligament
what is the accessory ligament from anterior inner iliac crest to transverse processes of L4 and L5
iliolumbar ligament
