PDDT (+ Derifield Leg Check) Flashcards
What are the 2 potential listings for a Positive Derifield
- -PI Ilium
- -AS Ilium
What are the 4 potential listings for a Negative Derifield?
- IN Ilium
- A-L / A-R
- P-R / P-L
- EX Ilium
What test determines which coupled pair is associated w/ a Negative Derifield?
Theta Y - Axis Test
Derifield leg checks shows short leg in the extended position becomes long in the flexed position?
–What is the potential listing?
PI
Derifield leg checks shows short leg in the extended position becomes short in the flexed position?
–What is the potential listing?
AS
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
Left (+) Derifield
Positive Derifield usually indicates ___ Ilium on the short leg side in the prone extended position
PI Ilium
For a PI Ilium, the PSIS palpates relatively ___ to the PSIS on the opposite side.
inferior
For a PI Ilium, the Ischial tuberosity palpates relatively ___ to the ischial tuberosity on the opposite side.
anterior
Typically the sacrum is relatively ___ to the PI ilium intersegmentally.
anterior
What is the pressure test for a PI Ilium?
– Superior Hand = I-S pressure on PSIS
– Inferior Hand = S-I pressure on sacral ala
If the legs become even in the prone extended and 90 degree flexion positions upon articular pressure testing, adjust for ____.
Left PI Ilium
What is the SCP for a PI Ilium?
Medial-Inferior PSIS
What is the CP for a PI Ilium?
1b - hook of hamate
What is the LOC for a PI Ilium?
I-S and P-A
Positive Derifield usually indicates ___ ilium on the long leg side in the prone extended position
AS
For an AS Ilium, the PSIS palpates relatively ___ to the PSIS on the opposite side.
superior
For an AS Ilium, the Ischial tuberosity palpates relatively ___ to the ischial tuberosity on the opposite side.
posteriorly
Typically the sacrum is relatively ____ to the ASilium intersegmentally
posterior
What is the pressure check for an AS Ilium?
– Superior Hand = S-I pressure on ischial tuberosity
–Inferior Hand = I-S pressure on sacral ala
If the legs become even in the prone extended and 90 degree flexion positions upon articular pressure testing, adjust for _____.
Right AS Ilium
What is the CP for an AS Ilium?
– Superior hand = #11 (heel of the hand)
– Inferior hand = # 10 (thenar)
What is the SCP for an AS Ilium?
– Superior hand = ischial tuberosity
– Inferior hand = right sacral ala
