pelvis arthrology

Question 1

where/how do you find the sacroiliac joint (SIJ)

Answer 1

between PSIS and sacrum

Question 2

where/how do you find the pubic symphysis

Answer 2

the joint that joins both the pubic crests together. base of hand on belly button, point down, middle finger on pubic symphysis

Question 3

iliolumbar ligament

Answer 3

-passing from the tip of
the transverse process
of L5
-posterior part of the
inner lip of the iliac crest
(upper margin of ilium)
-Stabilises L5 from
shearing forwards

Question 4

sacrotuberous ligament

Answer 4

• ischial tuberosity to PSIS
• stabilises posterior aspect of SIJ + resists anterior pelvic tilt

Question 5

sacrospinous ligament

Answer 5

-ischial spine to sacrum
- forms the greater sciatic foramen
-prevents twisting of the pelvis

Question 6

anterior sacroiliac ligament

Answer 6

• sacrum to ilium
• provides stability to anterior aspect

Question 7

posterior sacroiliac ligament

Answer 7

• posterior aspect of sacrum to posterior aspect of PSIS + iliac crest
• provides stability to the PSIS

Question 8

what ligaments would you test during compression

Answer 8

sacrotuberous, sacrospinous, posterior sacroiliac

Question 9

what ligaments would you test during distraction

Answer 9

sacrotuberous, sacrospinous, anterior sacroiliac