The following examples will present you with descriptions in which the sacrum is always dysfunctional (sacral torsion has been diagnosed) and L5 is also dysfunctional (nonadaptive).
Left on Right Posterior Sacral Torsion -- L5 NonAdaptive (FRSright)
Non-neutral dysfunctions at L5 (FRS
right) often accompany a left on right sacral torsion. An FRS
right at L5 can be identified when the patient is backward bent and L5 appears rotated right when compared to a left rotated and right sidebent sacrum.
- In the neutral position, when the sacrum is side bent right and rotated left, L5 is considered to be nonadaptive when it fails to rotate fully in the opposite direction of the rotated sacrum (i.e., to the right). Click here to see an image of left on right sacral torsion with the patient in the neutral position.
- In the backward bent position, when the sacrum is more side bent right and rotated left, L5 is considered to be nonadaptive when it fails to follow the sacral base position (i.e., rotate to the left). Click here to see an image of left on right sacral torsion with the patient in the backward bent position.
- Click here to visualize left on right sacral torsion with L5 adaptive and nonadaptive shown side-by-side. Remember that with an FRSright dysfunction, the left facet of L5 can not close, thus preventing left sidebending from occuring.
Right on Left Posterior Sacral Torsion -- L5 NonAdaptive (FRSleft)
Non-neutral dysfunctions at L5 (FRSleft) often accompany a right on left sacral torsion. An FRSleft at L5 can be identified when the patient is backward bent and L5 appears rotated left when compared to a right rotated and left sidebent sacrum.
- In the neutral position, when the sacrum is side bent left and rotated right, L5 is considered to be nonadaptive (dysfunctional) when it fails to rotate fully in the opposite direction of the rotated sacrum (i.e., to the left). Click here to see an image of right on left sacral torsion with the patient in the neutral position).
- In the backward bent position, when the sacrum is more side bent left and rotated right, L5 is considered to be nonadaptive (dysfunctional) when it fails to follow the sacral base position (i.e., rotate to the right). Click here to see an image of right on left sacral torsion with the patient in the backward bent position).
- Click here to visualize right on left sacral torsion with L5 adaptive and nonadaptive shown side-by-side. Remember that with an FRSleft dysfunction, the right facet of L5 can not close, thus preventing right sidebending from occuring.
Left on Left Anterior Sacral Torsion -- L5 NonAdaptive (ERSright)
Non-neutral dysfunctions at L5 (ERSright) often accompany a left on left sacral torsion. An ERSright at L5 can be identified when the patient is forward bent and L5 appears rotated right when compared to a left rotated and right sidebent sacrum.
- In the neutral position, when the sacrum is side bent right and rotated left, L5 is considered to be nonadaptive when it fails to rotate fully in the opposite direction of the rotated sacrum (i.e., to the right). Click here to see an image of left on left sacral torsion with the patient in the neutral position).
- In the forward bent position, when the sacrum is more side bent right and rotated left, L5 is considered to be nonadaptive when it fails to follow the sacral base position (i.e., rotates to the left). Click here to see an image of left on left sacral torsion with the patient in the forward bent position).
- Click here to visualize left on left sacral torsion with L5 adaptive and nonadaptive shown side-by-side. Remember that with an ERSright dysfunction, the right facet of L5 can not open, thus preventing left sidebending from occuring.
Right on Right Anterior Sacral Torsion -- L5 NonAdaptive (ERSleft)
Non-neutral dysfunctions at L5 (ERSleft) often accompany a right on right sacral torsion. An ERSleft at L5 can be identified when the patient is forward bent and L5 appears rotated left when compared to a right rotated and left sidebent sacrum.
- In the neutral position, when the sacrum is side bent left and rotated right, L5 is considered to be nonadaptive when it fails to rotate fully in the opposite direction of the rotated sacrum (i.e., to the left).
- In the forward bent position, when the sacrum is more side bent left and rotated right, L5 is considered to be nonadaptive when it fails to follow the sacral base position (i.e., rotates to the right).
- Remember that with an ERSleft dysfunction, the left facet of L5 can not open, thus preventing right sidebending from occuring.
