Copyright © 2014 Howard Pettersson
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Pelvic Drop Table Technique
Copyright © 2015 Howard Pettersson
Pelvic Drop Table Technique is a synthesis of concepts
and ideas from Thompson, Gonstead, and Activator
chiropractic techniques. Chiropractic procedures
from each of these techniques are blended together
to create a fluid, easy to learn method for analyzing
and adjusting the pelvis. Participants will come away
with a deeper appreciation for integration of
chiropractic techniques.
Pelvic Drop Table Technique
•
Positive Derifield
–Thompson
•Derifield Leg Check •Pelvic Drop Table Adjusting
–Gonstead
•SI Fluid Motion (Palmer Gonstead)
–Activator
•Articular Pressure Testing
POSITIVE DERIFIELD LEG CHECK
PI ILIUM on the Left
Copyright © 2014 Howard Pettersson
Left SI Fluid Motion
LEFT SI FLUID MOTION Apply a firm continuous pressure S-I, P-A, and medial-to-lateral through the joint plane into the table.
If both legs lengthen simul-taneously, then the sacroiliac joint on the side tested is fixed. This test indicates sacroiliac joint fixation for any one of the six primary pelvic listings. Copyright © 2014 Howard Pettersson
INITIAL DERIFIELD LEG CHECK
Perform the Initial Derifield Leg Check. If Positive Derifield is presented, continue with the Positive Derifield Protocol.
Initial Derifield Leg Check has been adapted from:
Fuhr AW, et al. Activator methods chiropractic technique, second edition, St. Louis: Mosby-Elsevier, 2009.
ANKLE INVERSION Typically ankle inversion is noted on the side of the short leg in the prone extended position. (Potential left short leg). If ankle inversion is on the side opposite the short leg in the prone position, it may be due to a previous ankle inversion sprain. Ask the patient about their past history.
Copyright © 2014 Howard Pettersson
Note the left short leg in the prone extended position.
Copyright © 2014 Howard Pettersson
Left Positive Derifield The left short leg in the prone extended position crossed over and became long in the flexed position indicating Left Positive Derifield.
POSITIVE DERIFIELD /
PI
ILIUM
•
Positive Derifield usually indicates
PI
ilium on the
short leg side in the prone extended position.
•
PSIS palpates relatively inferior to the PSIS on the
opposite side.
•
Ischial tuberosity palpates relatively anterior to the
ischial tuberosity on the opposite side.
Copyright © 2014 Howard Pettersson
PI
ILIUM STATIC PALPATION
•
PSIS palpates relatively inferior to
the PSIS on the opposite from both
the inferior and superior aspects.
Copyright © Howard Pettersson 1999
PI
ILIUM STATIC PALPATION
Copyright Howard Pettersson 2010
Left inferior PSIS Right superior PSIS
PI
ILIUM STATIC PALPATION
Copyright Howard Pettersson 2010 Right superior PSIS
Left inferior PSIS
PI
ILIUM STATIC PALPATION
•
Ischial tuberosity palpates relatively
anterior to the ischial tuberosity on
the opposite side.
Copyright © Howard Pettersson 1999
PI
ILIUM STATIC PALPATION
Copyright Howard Pettersson 2010
Left anterior ischial tuberosity
PI
Ilium Articular Pressure Test
•
Articular pressure test* in the direction of correction
to confirm
PI
ilium.
•
Typically the sacrum is relatively
anterior
to the
PI
ilium intersegmentally.
* Haas M, Peterson D, Panzer D, Rothman E, Solomon S, Krein R, et al. Reactivity of leg alignment to articular pressure testing: evaluation of a diagnostic test using a randomized crossover clinical trial approach. J Manipulative Physiol Ther. 1993;16(4):220-7.
* Khauv KB, John C. Health-related quality of the improvements in adult patients with chronic low back pain under low-force chiropractic care: a practiced-based study, Chiropr J Aust. 2011; Dec;41(4):118-122. * Fuhr AW, et al. Activator methods chiropractic technique,second edition.
St. Louis: Mosby-Elsevier, 2009.
Copyright © 2014 Howard Pettersson
Copyright © 2014 Howard Pettersson Articular Pressure Test to
Confirm Left PI Ilium Apply an inferior-to-superior pressure on the PSIS with the superior hand, and a superior-to-inferior pressure on the sacral ala (S2 – S3) with the inferior hand. Apply both pressures simultaneously.
If the legs become even in the prone extended and 90 degree flexion positions upon articular pressure testing, adjust for Left PI Ilium.
Copyright © 2014 Howard Pettersson
Correct for
Left
PI
Ilium
SCP: Medial-inferior PSIS CP: 1b – hook of the hamate LOC: I-S and P-A
Stab: Place cupped fingers under right ASIS.
Post-Adjustment Leg Check: The legs should become even in the prone extended and 90 degree flexion positions after adjusting for Left PI ilium.
Copyright © 2014 Howard Pettersson
Copyright © Howard Pettersson 2014 Left SI Fluid Motion
LEFT SI FLUID MOTION Post Ajustment: The leg on the side tested should now lengthen while the leg on the opposite side remains stationary indicating that the sacroiliac joint on the side tested is now freely moveable.
The foot of the stationary leg may demonstrate moderate toe-out foot flare, which is considered a normal variant.
POSITIVE DERIFIELD LEG CHECK
AS ILIUM on the Right
Copyright © 2014 Howard Pettersson
Right SI Fluid Motion
RIGHT SI FLUID MOTION Apply a firm continuous pressure S-I, P-A, and medial-to-lateral through the joint plane into the table.
If both legs lengthen simul-taneously, then the sacroiliac joint on the side-tested is fixed. This test indicates sacroiliac joint fixation for any one of the six primary pelvic listings. Copyright © 2014 Howard Pettersson
INITIAL DERIFIELD LEG CHECK
Perform the Initial Derifield Leg Check. If Positive Derifield is presented, continue with the Positive Derifield Protocol.
Initial Derifield Leg Check has been adapted from:
Fuhr AW, et al. Activator methods chiropractic technique, second edition, St. Louis: Mosby-Elsevier, 2009.
ANKLE INVERSION Typically ankle inversion is noted on the side of the short leg in the prone extended position. (Potential left short leg). If ankle inversion is on the side opposite the short leg in the prone position, it may be due to a previous ankle inversion sprain. Ask the patient about their past history.
Copyright © 2014 Howard Pettersson
Note the left short leg in the prone extended position.
Copyright © 2014 Howard Pettersson
Left Positive Derifield The left short leg in the prone extended position crossed over and became long in the flexed position indicating Left Positive Derifield.
POSITIVE DERIFIELD /
AS
ILIUM
•
Positive Derifield usually indicates
AS
ilium on the
long leg side in the prone extended position.
•
PSIS palpates relatively superior to the PSIS on the
opposite side.
•
Ischial tuberosity palpates relatively posterior to the
ischial tuberosity on the opposite side.
Copyright © 2014 Howard Pettersson
AS
ILIUM STATIC PALPATION
•
PSIS palpates relatively superior to
the PSIS on the opposite side from
both the inferior and superior
aspects.
Copyright © Howard Pettersson 1999
AS
ILIUM STATIC PALPATION
Copyright Howard Pettersson 2010
Left inferior PSIS Right superior PSIS
AS
ILIUM STATIC PALPATION
Copyright Howard Pettersson 2010 Right superior PSIS
Left inferior PSIS
AS
ILIUM STATIC PALPATION
•
Ischial tuberosity palpates posterior
relative to the opposite side.
Copyright © Howard Pettersson 1999
AS
ILIUM STATIC PALPATION
Copyright Howard Pettersson 2010
Right posterior ischial tuberosity
AS
Ilium Articular Pressure Test
•
Articular pressure test* in the direction of correction
to confirm
AS
ilium.
•
Typically the sacrum is relatively
posterior
to the
AS
ilium intersegmentally.
* Haas M, Peterson D, Panzer D, Rothman E, Solomon S, Krein R, et al. Reactivity of leg alignment to articular pressure testing: evaluation of a diagnostic test using a randomized crossover clinical trial approach. J Manipulative Physiol Ther. 1993;16(4):220-7.
* Khauv KB, John C. Health-related quality of the improvements in adult patients with chronic low back pain under low-force chiropractic care: a practiced-based study, Chiropr J Aust. 2011; Dec;41(4):118-122. * Fuhr AW, et al. Activator methods chiropractic technique,second edition.
St. Louis: Mosby-Elsevier, 2009.
Copyright © 2014 Howard Pettersson
Copyright © 2014 Howard Pettersson Articular Pressure Test to
Confirm Right AS Ilium Apply a superior-to-inferior pressure on the upper part of the ischial tuberosity with the superior hand, and an inferior-to-superior pressure on the sacral ala (S1 – S2) with the inferior hand. Apply both pressures simultaneously.
If the legs become even in the prone extended and 90 degree flexion positions upon articular pressure testing, adjust for Right AS Ilium.
Correct for Right
AS
Ilium
Copyright © 2014 Howard Pettersson
Right
AS
Ilium
Copyright © 2014 Howard Pettersson
CP:Dual: Superior contact hand use CP #11 (heel of the hand), and inferior contact hand use CP #10 a & b (Thenar). SCP: Dual: Superior contact hand on the ischial tuberosity, and inferior thenar on the right sacral ala at the level of S1-S2. Stab: Not applicable.
LOC: Superior contact hand S-I & P-A, and inferior contact hand I-S & P-A. Proc:Find the proper tension setting on the table for the patient. Place contact hands on their respective points. Three short quick thrusts are given in accordance with the LOC with the lumbar and pelvic pieces being cocked before each thrust. PP: The anterior superior iliac spines are placed
just above the superior edge of the pelvic piece. DS: Straight away on the same of involvement.
Post-Adjustment Leg Check: The legs should become even in the prone extended and 90 degree flexion positions after adjusting for Right AS Ilium.
Copyright Howard Pettersson 2014 Right SI Fluid Motion
RIGHT SI FLUID MOTION Post Ajustment: The leg on the side tested should now lengthen while the leg on the opposite side remains stationary indicating that the sacroiliac joint on the side tested is now freely moveable.
The foot of the stationary leg may demonstrate moderate toe-out foot flare, which is considered a normal variant.