Fortin finger test
when someone points to their pain at one side of the SI joint
do pts with hyper or hypomobility tendencies have more trouble with prolonged postures (like sitting for 30+ mins)
hypermobile!!
t/f: serious pathology in LBP + SIJ dysfunction is LOW
true
SI joint exam is ALWAYS performed in addition to….
lumbar spine exam
OR
hip joint exam
t/f: SI joint pathology CANNOT refer below the knee
true!!
innominate rotation
anterior innominate on 1 side while posterior innominate on the other
upslip
ASIS, PSIS, and isch tub shifts up on same side compared to opposite side
downslip
RARE
ASIS, PSIS, and isch tub shifts down on same side compared to opposite side
2 ways pubic lesions form
superior shear
inferior shear
what is the most common way to injure SIJ
trauma! (like falling)
3 reasons for pelvic girdle instability
1) not a lot of friction (L-shaped joint is too smooth)
2) wedge-shaped sacrum
3) lack of passive stabilization
would you address form or force first?
form!
lack of force closure in the pelvic girdle causes…
abnormal movement patterns
t/f: treat lumbar and/or hip dysfunction before SI joint when a pt comes in with SI pain
true
what type of diagnostic imaging is best for SI joint changes
MRI
2 types of pharmacological treatments used in SI and NOT lumbar
prolotherapy
platelet-rich plasma (PRP)
when would an SIJ fusion be selected
pt with chronic, unresolved symptoms
(last resort)
2 muscles that form the walls of the pelvic floor
obturator internus
piriformis
5 functions (S’s) of the pelvic floor
support
sphincteric
sexual
stability
slump pump
