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Flashcards in Kines Hip Deck (50):
1

How much does the acetabulum face inferior in men vs women

 

There is a 22-42 range

Men: 38 degrees

Women: 35 degrees

2

What is another name for Right Pelvic External rotation

Left pelvic backwards rotation

2

What sections of the pelvis make up the posterior portion of the acetabellum

Ischium

3

How will a compensated retroversion present

External rotation of the LE

Toes are pointed out

4

Arthrokinematics of OCK IR

Anterior Roll Posterior Glide

5

Describe the structure of the proximal femur

It is more spherical than the acetabulum

Has a fovea capitis

6

What are the Transverse plane motions of the hip and the normal values

IR in extension (0-55) IR in Flexion (0-45) ER in extension (0-55) ER in Flexion (0-45)

7

Explain Right Pelvis Drop

Left leg is on ground as the axis of rotation

  • The right pevis will depress
  • Lumbar will bend to the right

8

Arthrokinematics of OCK Adduction

Inferior Roll Superior Glide

8

How will a tight iliopsoas present

Tight illiacus= anterior tilt of pelvis

Tight psoas major= Lumbar lordosis

9

What is retroversion

When the angle of "version" is less than 8-15 degrees or in a lateral torision

10

What are the medial rotators of the hip

  • There are no muscles with a primary function of IR
  • The TFL and glute medius (anterior fibers) may play the largest roles.
  • Glute minimus
  • Piriformis if the beyond 90 degrees of flexion

11

Explain the angle of inclination of the proxima femur and how it changes with age

Has a frontal plane inclination that gives the body its

12

What adductor will cross both the knee and the hip

The Gracillis

13

What are the primary muscles for lateral rotation of the hip

  1. Obturator internus
  2. Piriformis
  3. Obturator externus
  4. Quadratus femoris
  5. Sperior Gemellus
  6. Inferior gemellus

15

Explain Right hip Hiking

The Left leg with the femur in the acetabellum acts as the axis of rotation.

  • The right pelvis ill elevate
  • Lumbar will bend to the left

15

What will a greater angle of inclination result in on the lower extremity

Increased leg length

More of a valgus

16

What will limit the rotation of the hip while the hip is in 90 degrees of flexion

The posterior capsule

18

What are the sagittal plane motions and values for the hip

Flexion (0-120) Extension (0-20)

19

What will coxa valga result in for the lower extremity

Increased leg lenght

Increased pre-load to the abductors

Decreased moment arm of abductors

 

19

What are the secondary muslces used for ER of the hip

Glute medius (posterior fibers)

Superior gluteus maximus

20

Explain the different actions of the Glute. Med.

All fibbers Abduct the hip

Anterior fibers flex and IR

Posterior fibers Extend and ER

22

Which has a greater peak isometric torque on the hip the adductors or abductors

Adductors

23

Why is there a lack of superior stability in the hip joint

The angle of inclination of the femur is greater than the acetabular angle of inclination. This exposes a portion of the femur head.

24

Arthrokinematics of OCK ER

Posterior Roll Anterior Glide

26

What are normal values for antiversion

8-15 degrees of torsion

26

Explain the stability of the hip in the transverse plane

The acetabulum and the head of the femur are both facing anterior, which will expose the head of the femur anteriorly. Thus there is less stability anterior than there is posteriorly

27

What is this an example of

Q image thumb

Anterior Pelvic Tilt

28

What is another name for left pelvic forward rotation

Right pelvic internal rotation

29

What are the frontal plane motions of the hip and the normal values

Abduction (0-45) Addiction (0-30)

30

How much doe the acetabellum face anteriorly in men vs women

Men 18.5 degrees

Women 21.5 degrees

32

What sections of the pelvis make up the anterior portion of the acetabellum

The Illum and Pubis bones

32

What is the characteristic of an uncompenstated retroversion, and what pathology is more likely to occur is this position 

The head of the femur is exposed posteriorly

Posterior dislocation

34

What are the 3 ways the acetabular will change with age

  1. Increased superior stability
  2. Increased central stability
  3. Reduced co-adaptation (matching up perfectly)

35

Arthrokinematics of OCK Flexion

Spin

36

What will a coxa varus result in the lower extremity

Shorter leg length

Impingment limiting ROM

Poor length tension relationship for abbductors

37

What will happen to anteversion of the hip as we get older

It will begin to decrease

38

How will one present while compensating for excessive anteversion

IR of lower extremity

Toes pointed in

39

What is this an example of

Q image thumb

Posterior Pelvic Tilt

40

Why is the open pack position have the most congruency in the hip

The ligaments will "uncoil" with flexion, abduction, and external rotation

41

Arthrokinematics of OCK Abduction

Superior Roll

Inferior Glide

42

What is the position that has the most congruency in the hip

The open pack position

30-30-slight

Unlike other structures where the closed pack will have the most congruency

43

Describe the orientation of the Acetabellum

Faces Lateraly and Anterior

*Antiversion

44

Arthrokinematics of OCK Extension

Spin

45

What is superincumbent weight

46

How much superincumbent weight is placed on each femur in bilateral stance

1/2 of superincumbant weight

47

How much abductor muscle force is required in the bilateral stance

Zero if there are no deformities/pathologies

48

How much weight is on a leg in unilateral stance

Full superincumbent weight or 2/3 of total BW PLUS the weight of the unsupported leg

49

How much is the adduction moment of the leg in unilateral stance

(Superincumbent weight + Weight of other leg)(Moment arm of Hat)/ The distance of the moment arm of abductors

 

50

What would the adductor moment be, or the abduction force required for a 210 pound patient in unliateral stance

(140+30)x4

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2

340#