PDDT (+ Derifield Leg Check)

Question 1

What are the 2 potential listings for a Positive Derifield

Answer 1

• -PI Ilium

- -AS Ilium

Question 2

What are the 4 potential listings for a Negative Derifield?

Answer 2

• • IN Ilium
• • A-L / A-R
• • P-R / P-L
• • EX Ilium

Question 3

What test determines which coupled pair is associated w/ a Negative Derifield?

Answer 3

Theta Y - Axis Test

Question 4

Derifield leg checks shows short leg in the extended position becomes long in the flexed position?
–What is the potential listing?

Answer 4

PI

Question 5

Derifield leg checks shows short leg in the extended position becomes short in the flexed position?
–What is the potential listing?

Answer 5

AS

Question 6

What is the listing?

• -1.) Left short leg in the prone extended position
• -2.) Left short leg in the prone extended position crossed over and became long in the flexed position indicating

Answer 6

Left (+) Derifield

Question 7

Positive Derifield usually indicates ___ Ilium on the short leg side in the prone extended position

Answer 7

PI Ilium

Question 8

For a PI Ilium, the PSIS palpates relatively ___ to the PSIS on the opposite side.

Answer 8

inferior

Question 9

For a PI Ilium, the Ischial tuberosity palpates relatively ___ to the ischial tuberosity on the opposite side.

Answer 9

anterior

Question 10

Typically the sacrum is relatively ___ to the PI ilium intersegmentally.

Answer 10

anterior

Question 11

What is the pressure test for a PI Ilium?

Answer 11

– Superior Hand = I-S pressure on PSIS

– Inferior Hand = S-I pressure on sacral ala

Question 12

If the legs become even in the prone extended and 90 degree flexion positions upon articular pressure testing, adjust for ____.

Answer 12

Left PI Ilium

Question 13

What is the SCP for a PI Ilium?

Answer 13

Medial-Inferior PSIS

Question 14

What is the CP for a PI Ilium?

Answer 14

1b - hook of hamate

Question 15

What is the LOC for a PI Ilium?

Answer 15

I-S and P-A

Question 16

Positive Derifield usually indicates ___ ilium on the long leg side in the prone extended position

Answer 16

AS

Question 17

For an AS Ilium, the PSIS palpates relatively ___ to the PSIS on the opposite side.

Answer 17

superior

Question 18

For an AS Ilium, the Ischial tuberosity palpates relatively ___ to the ischial tuberosity on the opposite side.

Answer 18

posteriorly

Question 19

Typically the sacrum is relatively ____ to the ASilium intersegmentally

Answer 19

posterior

Question 20

What is the pressure check for an AS Ilium?

Answer 20

– Superior Hand = S-I pressure on ischial tuberosity

–Inferior Hand = I-S pressure on sacral ala

Question 21

If the legs become even in the prone extended and 90 degree flexion positions upon articular pressure testing, adjust for _____.

Answer 21

Right AS Ilium

Question 22

What is the CP for an AS Ilium?

Answer 22

– Superior hand = #11 (heel of the hand)

– Inferior hand = # 10 (thenar)

Question 23

What is the SCP for an AS Ilium?

Answer 23

– Superior hand = ischial tuberosity

– Inferior hand = right sacral ala