Lumbosacral Flashcards
Which sacral axis is impacted by respiration?
Superior transverse
Which sacral axis is impacted by lumbosacral motion?
Middle transverse
Which sacral axis is impacted by gait?
Inferior transverse
During heal strike to foot flat, the inferior transverse axis of the sacrum is rotated…
Posteriorly
During midstance to toe off the inferior transverse axis is rotated
Anteriorly
What are the 2 directions for forward sacral torsion?
R/R
L/L
What are the 2 directions for backward sacral torsion?
R/L
L/R
If L5 is in the position of FRS R, where is the sacrum?
L/R BST
If L5 is in the position of FRS L, what is the position of the sacrum?
R/L BST
If L5 is in the position of ERS R, where is the sacrum?
L/L FST
If L5 is in a position of ERS L, what is the position of the sacrum?
R/R FST
When L5 extends, the sacrum…
Nutates
When L5 flexes, the sacrum…
Counter-nutates
When the sacrum rotates L and side bends R, L5…
Rotates right and side bends left
When the sacrum rotates right and sidebends left, L5…
Rotates left and side bends right
When the lumbar spine extends, SB left and rotates left, the sacrum…
Anteriorly nutates on the left, rotates right on the right oblique axis
When the lumbar spine is in extension and right side bending and right rotating, the sacrum…
Anteriorly nutating on the right rotating left on left oblique axis
Forward sacral torsion can be described as (anterior/posterior) sacral base nutation
Anterior
What is the position of an R FST?
Right sacral base nutated anteriorly
What is the restriction of a R FST?
Right sacral base counter-nutation (lower> upper SIJ)
What is the L5 adaptation for a R FST?
Extended, SB and rotated R
What is the spine doing above a R FST?
SB left rotates R
What is the position of a R BST?
Left sacral base counternutated
What is the restriction of a R BST?
Left sacral base nutated (upper> lower SIJ)
What is the L5 adaptive response of a R BST?
Flexed, SB and rotated R
What is the spine doing above a R BST?
SB L and rotates R
Which direction does trauma come from to induce unilateral sacral flexion?
Superiorly
Which direction does trauma come from to induce unilateral sacral extension?
Inferiorly
What is the position of a L unilateral sacral flexion?
Flexed left sacral base (inferior shear)
What is the restriction of a L unilateral sacral flexion?
Extension of the L sacral base (lower> upper SIJ)
What is the L5 adaptive response of a L unilateral sacral flexion?
Extended, SB and rotated L
What is the spine doing above a L unilateral sacral flexion?
SB R and rotated L
What is the position of a R unilateral sacral extension?
Extended right sacral base (superior shear)
What is the restriction of a R unilateral sacral extension?
Flexion of the right sacral base (lower>upper SIJ)
What is the L5 adaptive response of a R unilateral sacral extension?
Flexed, SB/ rotated L
What is the spine doing above a R unilateral sacral extension?
SB R and rotated L
In a L/L FST, the R sacral base is where?
Anterior
In a L/L FST, which ILA is posterior and inferior?
Left
In a L/L FST, asymmetry is worse in…
L spine flexion
In a L/L FST, asymmetry is absent during…
L spine extension
Which tests would you use to assess a L/L FST? Which would be (+)? (-)?
+ sitting flexion test R
+ stork R
- L spine spring test
In a L/R, which sacral base is posterior?
Left
In a L/R BST, whichwhich ILA is posterior and inferior?
Left
For a L/R BST, asymmetry is worse in…
L spine extension
For a L/R BST, asymmetry is absent in…
Flexion
Which tests would you use to asses L/R BST? Which would be (+)? (-)?
+ Sitting flexion test L
+ Stork L
+ L spine Spring test
In a unilateral sacral flexion L, the sacral base is anterior on…
Left
In a unilateral sacral flexion L, ILA is inferior and posterior on the …
Left
True or false; A unilateral sacral flexion L will become symmetrical throughout range of L spine flexion and extension
FALSE- it remains asymmetrical throughout range of L spine flexion and extension
Which tests might you use to assess a unilateral sacral flexion L? Which would be (+)? (-)?
+ sitting flexion test L
+ stork test
- L spine spring test
In a unilateral sacral extension R, the sacral base is posterior on the…
Right
In a unilateral sacral extension R, the ILA is superior and anterior on the…
Right
In a unilateral sacral extension R, the ILA is inferior and posterior on the…
Left
A unilateral sacral extension R remains (symmetrical/ asymmetrical) throughout range of L spine flexion and extension?
Asymmetrical
Which tests might you use to assess a unilateral sacral extension R? Which would be (+)? (-)?
+ sitting flexion test R
+ stork test R
+ L spine spring test
