PDDT ( - Derifield Leg Check) Flashcards
If the left reactive (short) leg in the prone extended position stays short or shortens in the knee-flexed position, the initial leg check indicates _____.
Left Negative Derifield.
The θY-Axis Test tells you which one of two coupled misalignment pairs is present.
– The first possibility is IN Ilium and Anterior Rotation of the Sacrum.
– The other possibility is Posterior Rotation of the Sacrum and EX Ilium
The θy-axis test resets the legs in anticipation of the post-isolation leg check for the ____ position.
knee-flexed
After the θy-axis test, the side tested leg stays short in the knee-flexed position.
—What is the possible coupled misalignment?
IN Ilium or Anterior Rotation of the Sacrum
After the θy-axis test, the side tested leg lengthens in the knee-flexed position.
–What is the possible coupled misalignment?
Posterior Rotation of the Sacrum or EX Ilium
After the θY-Axis Test, if the reactive leg (left) stays short in the prone extended position, and then the leg on the side tested (right) lengthens in the knee-flexed position, pressure test for…
- Left P-R of the Sacrum and
- - Left EX Ilium.
How do you pressure test for P-R of the Sacrum?
apply a P-A and M-L pressure on the left sacral ala to the 1st and 2nd sacral tubercles
What is the CP for a posterior rotation of the sacrum?
1b - hook of hamate
What is the SCP for a posterior rotation of the sacrum?
B/w S2 tubercle and PSIS
Instruct the patient to close their eyes and walk in place for 30 seconds. After 30 seconds, instruct the patient to stop. Next, observe the position of their feet.
– If one foot is in front of the other, and also has relative toe-in foot flare; this may indicate potential ____ on that side
EX Ilium
The patient may experience sciatic-like pain down the back of the thigh
–What listing is it?
EX Ilium
The gluteal muscles on the side of EX ilium appear _____ compared to the opposite side.
hunched
Gluteal hunching is a visual finding for __ Ilium
EX
What is the pressure test for EX Ilium?
Roll in I-S and L-M against the lateral inferior PSIS
Instruct the patient to close their eyes and walk in place for 30 seconds. After 30 seconds, instruct the patient to stop. Next, observe the position of their feet.
– If one foot is behind the other, and also has relative toe-out foot flare; this may indicate potential ___ Ilium
IN Ilium
The gluteal muscles on the side of IN ilium appear ____ compared to the opposite side
flattened
Gluteal flattening is a visual finding in __ Ilium.
IN Ilium
The θY-Axis Testresets the legs in anticipation of the post-isolation leg check for the knee-flexed position. Therefore, if the reactive leg stays short in the prone extended position, and then the leg on the side tested (left) stays shortin the knee-flexed position, pressure test for..
Left IN Ilium or Left anterior rotation of the sacrum
What is the pressure test for IN Ilium?
Roll in from S-I and M-L against the medial PSIS
What is the CP for an EX Ilium?
10b (proximal thenar)
What is the SCP for EX Ilium?
Lateral Inferior PSIS
What is the CP for an IN Ilium?
1b (Hook of Hammate)
What is the SCP for an IN Ilium?
Medial aspect of PSIS
After the θY-Axis Test, the reactive leg stays short in the prone extended position, and then the leg on the side tested (right) stays short in the knee-flexed position, pressure test for…
– Right Anterior rotation of the sacrum
– Right IN Ilium
How do you pressure test for Right Anterior Rotation of the Sacrum?
Apply a straight L-M tissue up against the mid-lateral aspect of the inguinal ligament
After the θY-Axis Test, if in flexion the leg on the fixated side gets longer than it was before when flexed
–What are the possible listings?
- Posterior Rotation of Sacrum
- - EX Ilium
After the θY-Axis Test, if in flexion the leg on the fixated side gets shorter than it was before when flexed
–What are the possible listings?
- IN Ilium
- - Anterior Rotation of Sacrum
