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Flashcards in Week 5 Deck (90)
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1

Describe the angle of inclination of the hip and coxa valga/coxa vara

coxa valga - > 125 degrees

coxa vara - < 125 degrees

2

Describe the angle of torsion and list norms

- Between axis through femoral head/neck and the distal femoral condyles
- norm = 8-20 degrees

3

What is excessive anteversion and how might that impact an individual’s hip?

- increased angle of torsion

- reduces hip stability
- increased hip IR and decreased ER
- pigeon toeing
- commonly found w/ coxa valga

4

What is retroversion of the hip and how might that impact an individual’s hip?

- decreased angle of torsion

- increased hip ER and decreased IR
- may cause impingement

5

What is the center edge angle? List the norm and abnormal positions of center edge angle.

- measurement of acetabular depth, amount of space covered from acetabula (roof)
- norm = 25-35 degrees
- >45 degrees =coxa profunda
- <16 degrees = dysplasia

6

What is Cam deformity as it relates to Femoral acetabular impingement (FAI)?

- extra bone at anterior-superior region of femoral head and neck junction
- loss of natural tapering of femoral head
- impingement occurs of bulge of femoral head against acetabulum
- IR w/ flexion maximizes impingement

7

What is Pincer deformity as it relates to Femoral acetabular impingement (FAI)?

- Abnormal bony extension of anterior–lateral rim of acetabulum
- Often associated with deep acetabulum or overly retroverted acetabulum
- Flexion and IR causes premature abutment of femur against acetabulum

8

What is the position of maximal bone congruency for the hip?

articular congruence - flexion, abduction, slight ER

9

What are the ligaments of the hip?

- iliofemoral ligament
- pubofemoral ligament
- ischiofemoral ligament

10

What is the function of the iliofemoral ligament?

- anterior stability
- limits IR and ER
- tighten w/ extension

11

What is the function of the pubofemoral ligament?

- limits ER in hip extension
- tighten w/ extension

12

What is the function of the ischiofemoral ligament?

- primary restraint to IR
- tighten w/ extension

13

What is the function of the transverse acetabular ligament?

- protect blood vessels that travel beneath it to get to the head of the femur

14

What is the function of the acetabular labrum?

- deepens concavity
- seal to maintain negative intra-articular pressure

15

What is the function of the ligamentum teres?

- conduit for blood supply to the femoral head

16

What are the osteokinematics of hip in OKC?

- flexion/extension
- abduction/adduction
- ER/IR

17

What are arthrokinematics of hip flexion/extension in OKC?

Convex on concave

Flexion
- superior roll and inferior glide (anterior roll and posterior glide)

Extension
- Inferior roll and superior glide (posterior roll and anterior glide)

18

What are arthrokinematics of hip ab/adduction in OKC?

Convex on concave

Abduction
- Superior roll and inferior glide

Adduction
- Inferior roll and superior glide

19

What are arthrokinematics of hip IR/ER in OKC?

Convex on concave

IR
- medial roll and lateral glide

ER
- lateral roll and medial glide

20

What are osteokinematics of pelvis in CKC?

- anterior/psoterior pelvic tilt
- lateral tilt
- Forward/backward rotation

21

Anterior and posterior tilting produces what motions at the hip?

anterior tilting - hip flexion

posterior tilting - hip extension

22

What are arthrokinematics of pelvis during anterior/posterior tilting in CKC?

concave on convex

Anterior tilting
- anterior roll and anterior slide

Posterior tilting
- Posterior roll and posterior slide

23

What are arthrokinematics of pelvis during abduction/adduction in CKC?

concave on convex

Abduction
- superior roll and superior slide

Addiction
- Inferior roll and inferior slide

24

What motion occurs at the left hip during right pelvic hiking?

hip abduction

25

What motion occurs at the left hip during right pelvic drop?

hip adduction

26

What are the arthrokinematics of forward/backward rotation of pelvis in CKC?

concave on convex

Forward
- anterior roll and anterior slide

Backward
- posterior roll and posterior slide

27

What motion occurs on the stance limb during forward/backward rotation?

Forward - IR of stance joint

Backward - ER of stance joint

28

Describe the closed pack, open pack and capsular pattern of the hip

closed pack - full extension w/ slight IR and abduction

open packed - moderate flexion, slight abduction, neutral rotation

capsular pattern - IR = flexion = abduction

29

If someone performs a straight leg raise (SLR) and they demonstrate excessive anterior tilt of the pelvis, what may this indicate?

weak abdominals due to force coupling

30

Describe the role of the adductor longus in sagittal plane motion.

during hip flexion - contributes to hip extension

during hip extension - contributes to hip flexion