Hip Artho/Osteokinematics

State the roll and slide for hip flexion and the normal ROM.

Roll anterior slide posterior 120 degrees

State the roll and slide for hip IR and the normal ROM.

Roll anterior slide posterior 45 degrees

State the roll and slide for hip abduction and the normal ROM.

Roll lateral slide medial 45 degrees

State the roll and slide for hip adduction and the normal ROM.

Roll medial slide lateral 30 degrees

Which positions would we use a superior glide to improve ROM In the 90/90 position?

Hip extension and ER

Which positions would we use an inferior glide to improve ROM in the 90/90 position?

Hip flexion and IR

List the chain of events that occurs with excessive retroversion.

Increased hip ER ROM --> toeing-out gait Limited hip IR over time

List the chain of events that occurs with excessive anteversion.

Increased hip IR ROM --> toeing-in gait Limited hip ER over time

If BOTH the bend and the wobble are limited then we have a _______.

Joint mobility dysfunction

Would we want to perform an anteriormmob to try to increase ER in this person?

NO

If the bend is normal, do we need to check the wobble?

No. If the bend is limited passively, check the woblle

If the bend is limited but the wobble is good, we have a ________.

Tissue extensibility dysfunction

True or false. Our hip should be sitting in more of an anteverted position.

True

What is the normal angle of inclination for an adult?

125 degrees

Excessive anteversion is defined as > _____ degrees.

15

Excessive retroversion is defined as significantly < ______ degrees.

15 (approaches 0)

What is the normal anteversion angle?

8-15 degrees

What is the total arc of motion of the hip?

90 degrees

Coxa Vara is defined as:

< 125 degrees (< 105)

Femoral retroversion on the Craig's test is defined as:

< 8 degrees of hip IR

Coxa Valga is defined as:

> 125 degrees (> 140)

Femoral anteversion on the Craig's test is defined as:

> 15 degrees of hip IR

How do we improve hip abduction and hip adduction @ 90?

Abduction = anterior Adduction = posterior

What is the angle in the frontal plane that is between the femoral neck and the femoral shaft?

Angle of inclination

What is the "wobble"?

Arthrokinematics

State the convex/concave rule for the hip.

Convex femoral head moves on the concave acetabulum

Which test is used to assess for femoral ateversion or retroversion in the adult orthopedic population?

Craig's test

What describes "twisting of the bone, specific to the femur"?

Femoral torsion

What measures the angle at which the head of the femur sits inside the acetabulum?

Femoral version

What is the "bend"?

Osteokinematics

State the roll and slide for hip extension and the normal ROM.

Roll posterior slide anterior 20 degrees

State the roll and slide for hip ER and the normal ROM.

Roll posterior slide anterior 45 degrees

List some related findings that coincide with excessive anteversion.

Subtalar pronation, patellar subluxation, medial torsion at tibia, medial torsion at femur

List some related findings that coincide with excessive retroversion.

Subtalar supination, lateral patellar subluxation, lateral torsion at tibia, lateral torsion at femur

Is the Craig's test reliable?

Yes - it is up to par with the accuracy of an MRI.