Illiosacral/Pelvic ME Flashcards
Non-physiological movements vs physiological movements
Non-physiological movements
- generally induced by trauma
- evidence by joint/muscle and CT elements being in positions that are NOT physiological ROM Or AOM
Include:
- innominate shears (superior/inferior)
- pubic shears (superior/ inferior/compression/ distraction)
Physiological movements
- generally induced by over working
- evidence by joint/muscle and CT elements being in positions that are physiological ROM Or AOM but are dysfunctional since they are not in neutral
Include:
- rotations (anterior/posterior)
- flares (inflare/outflare)
Innominate rotation movement
Rotate around the inferior transverse axis of the sacrum located at inferior part of SI joint
Anterior innominate rotation
ASIS moves inferiorly and the PSIS moves superiorly around the inferior transverse axis
Posterior innominate rotation
ASIS moves superiorly and the PSIS moves inferiorly around the inferior transverse axis
Pelvic outflare
Ipsilateral ASIS of the (+) standing flexion side is farther away from the midline, but is still at the same level as the the normal ASIS
Pelvic inflare
Ipsilateral ASIS of the (+) standing flexion side is closer to the midline, but is still at the same level as the the normal ASIS
Superior innominate shear
Ipsilateral ASIS and PSIS of the (+) standing flexion test side is superior compared to the other side
Inferior innominate shear
Ipsilateral ASIS and PSIS off the (+) standing flexion test is inferior compared to the normal side
Iliosacral diagnosis steps
1) standing flexion test
- if (+) on one side, that is the side of the dysfunction
2) physician reseats pelvis on supine patient
3) ASIS compression test (optional)
4) measure ASIS levels, pubic rami levels and supine leg length on the supine patient
5) physician reseats pelvis on prone patient
4) measure PSIS, ischial tuberosity is and prone leg lengths on prone patient
Standing flexion test
Physicians thumbs are placed on inferior slope of patients PSIS with rest of fingers on supero-lateral surface of iliac crests
Maintain firm pressure and follow bone only
Patient is to actively bend forward at waist slowly to touch toes
- allow pelvis to come back to you, dont resist
Physician keeps their eyes level with PSIS
(+) side is if one PSIS moves more CEPHALAD than the other at the end of range of motion
(-) is if PSIS are symmetrical at end of range of motion
Why does the standing flexion test positive side the one that has the superior PSIS?
As patient bends forward, spine and L5 go first, then sacrum, then innominate
If a patient has a iliosacral dysfunction, then the innominate and sacrum will be “glued” so innominate rotates forward quicker and more superior than the normal side
Possible reasons for false negatives and positives
Tight hamstrings
Tight Iliopsoas
Leg length discrepancy > 1/2 inch at rest
Unilateral sacral dysfunction
How to reseat pelvis supine
Actively
- patient lays supine with knees bent, feet on table and hips on table
- patient lifts hips off table
- patient then slowly returns hips to table
- patient then straightens legs out
- physician pulls legs straight and relaxes traction to measure leg length
Passively
- same steps except step 2 is done by the physician rather than patient
ASIS compression test
Stand at level of patients hips
Place palms on thenar eminences on the ASIS
Compress with mild/moderate A->P medial force at 45 degree angle through ASISs
Sequentially induce an impulse to spring the joints
(+) = blocked relative motion
really only used if standing flexion cant be done
Reseat the pelvis prone
- must be done passively*
1) patient lays prone
2) physician grabs patients legs and lifers patients hips up
3) physician centers hips over table and returns legs to table
40 physician ensures feet are off table and in neutral and then pulls on legs/relaxes to measure leg length
Anatomic long/short leg vs functional long/short leg
Anatomical
- tape measure from ASIS -> medial malleolus shows discrepancies in Leg lengths at least 2 separate occasions
- get ortho xrays if measurements are off to confirm
- treatment = lift therapy or orthopedic shoes + OMT as adjunct
Functional
- positive supine/prone leg length test
- treatment = OMT, if doesnt resolve then lift therapy
What are possible OMT dysfunctions for functional long/short legs?
Innominate shear (inferior is most common)
Innominate rotation (anterior is most common)
LE somatic dysfunctions
Sacral somatic dysfunctions
Lumbar somatic dysfunction
What are the most common OMT diagnosis for long leg
Anterior innominate rotation (more common)
Inferior innominate shear
What is the most common OMT dysfunction assocaited with ischial tuberosity dysfunctions?
Innominate shears
- inferior = ischial tuberosity on (+) side is lower
- superior = ischial tuberosity on (+) side is higher
Area of greatest restriction (AGR) and Muscle energy treatment of pelvis
Find the AGR from the screening examination
- treat AGR first and then work down the remaining restrictions after initial AGR treatment (pick the next most restricted)
If you cant determine AGR, use “HIPLSIT” order
Hip long restrictions Innominate and sacral shears Pubic dysfunctions Lumbar (non-compensated L5) Sacral Torsions Innominate rotations/flares Thoracic dysfunctions
Anterior and inferior innominate rotations
1) are right or left depending on (+) flexion test (same side)
2) anterior = PSIS superior, ASIS inferior
3) posterior = PSIS inferior, ASIS superior
* on both, ischial tuberosity are the same level*
** rotation is along an inferior and transverse axis **
Anterior innominate rotation ME
1) patient supine, physician is standing at the side to be treated
2) patients hips and knees are flexed up (similar to how both are blacked when curling into a ball)
3) physicians caudad hand resets on the patients knees and the cephalad hand grabs the PSIS on the dysfunctional side
4) physicians caudad hand will flex the patients hips and knees up to disengage the sacroiliac joint (may also need to add mild abduction and external rotation to fully disengage)
5) patient tries to extend knee against force for 3-5 seconds while physician applies a inferior force on the PSIS with cephalad hand
6) after 3-5 seconds, patient relaxes and physician further flexes and traction’s the PSIS inferiorly
7) recheck after 3-5 cycles
Posterior innominate rotation ME
1) Patient prone, physician on side of dysfunction
2) patient is brought to the edge of the table so the dysfunction side leg can hang freely, disengaging the dysfunctional SI joint
3) physicians cephalad hand stabilizes the contralateral innominate, allowing pelvis to rotate anteriorly
4) physicians caudad hand grabs the ipsilateral hanging leg on the thigh, just above the knee and passively extends the patients hip to the feather edge of the barrier
5) patient flexes hip against physician counter force for 3-5 seconds
6) patient relaxes and physician extends towards new barrier
7) repeat 3-5 times and recheck
Innominate flares
1) right or left is dependent on (+) standing flexion side (same side)
2) out-flare: ASIS = lateral, PSIS = medial
3) in flare: ASIS = medial, PSIS = lateral
* for both, ischial tuberosities are on the same level*