Pelvis

Question 1

pelvis

Answer 1

central role as biomechanical hub

• couples mechanical forces
• fascial/muscle connections

Question 2

inominates

Answer 2

stabilize pelvic ring

Question 3

pelvis

Answer 3

2 inominates and sacrum

Question 4

anatomy of pelvis

Answer 4

ilium, ischium, pubis

fusion of these three bones

joints - SI, pubic symphisis, acetabulum

Question 5

self-bracing mechanism

Answer 5

form closure

force closure

Question 6

form closure

Answer 6

structural anatomy of wedge shaped sacrum

internal SI joint structures

Question 7

keystone

Answer 7

compressive forces stabilizing arch

-just like sacrum of body

Question 8

force closure

Answer 8

compressive tensile forces to create a form of stability

muscles and fascial tensions

Question 9

innominate motion

Answer 9

rotation, flaring - physio

shearing - non-phys

Question 10

rotation

Answer 10

physiologic

anterior/posterior

Question 11

flaring

Answer 11

physiologic

lateral/medial

Question 12

shearing

Answer 12

non-physiologic

superior/inferior

Question 13

physiologic vs. non-physiologic

Answer 13

non physiologic is trauma - body forced out of its normal barriers

physiologic, wearing down of barriers over time

Question 14

standing flexion test

Answer 14

gives laterality of somatic dysfunction

Question 15

side of positive standing flexion test

Answer 15

same side as dysfunction

Question 16

landmarks of innominate

Answer 16

ASIS, PSIS, pubic tubercle

Question 17

middle transverse axis of SI joint

Answer 17

body weight - postural

Question 18

inferior transverse axis of SI joint

Answer 18

iliosacral**

Question 19

superior transverse axis of SI joint

Answer 19

respiratory - breathing in

Question 20

axis of innominates

Answer 20

A/P rotation occurs about the inferior transverse axis

Question 21

anterior rotation

Answer 21

extension of hip

Question 22

posterior rotation

Answer 22

flexion of hip

Question 23

physiologic motion

Answer 23

only a problem if it gets stuck in one position

Question 24

complaints with anterior rotation of innominate

Answer 24

tight hamstrings, spasm, sciatica on ipsi side

Question 25

innominate flare

Answer 25

rotation along a vertical axis medial flare or lateral flare

Question 26

complaints with medial flare

Answer 26

tender SI ligaments | tender pubic symphysis

Question 27

shear

Answer 27

non-phsiological

Question 28

extension of hip

Answer 28

inflaring - anterior innominate rotation

Question 29

flexion of hip

Answer 29

outflaring - posterior innominate rotation

Question 30

innominate shear

Answer 30

traumatic positional change | -vertical transmission of SI joint superior or inferior

Question 31

strain

Answer 31

beyond 3-5 mm of motion cannot compensate = pain

Question 32

upslip

Answer 32

all three up

Question 33

downslip

Answer 33

all three down

Question 34

shear types

Answer 34

upslip or downslip

Question 35

pubic symphysis somatic dysfunction

Answer 35

superior, inferior, compressed

Question 36

iliosacral motion

Answer 36

leg movement

Question 37

sacroiliac motion

Answer 37

vertebral column position

Question 38

pubic transverse axis

Answer 38

through symphysis pubis | -A/P rotations

Question 39

inferior transverse axis

Answer 39

physiologic pivot point | -