Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Movement Science > Hip > Flashcards

Hip Flashcards

1
Q

Coxofemoral Joint

A

-synovial, diarthrodial, ball and socket
-flx/ext, ab/ad, IR/ER
-weight bearing and support

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Acetabulum

A

-fuse ilium, ischium, pubis
-50 deg inferior and 20 deg anterior

-luneate surface: hyaline cartilage articulating with femur
-acetabular notch + transverse acetabular lig: creates tunnel for BVs
-Acetabular fossa: deepest, does not touch femur

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Acetabular Dysplasia

A

shallow acetabulum, prone to instability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Coxa Profunda

A

over coverage of acetabulum leading to impingement

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Anterversion

A

-more than 20 deg
-positioned more ant
-instability

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Retroversion

A

-less than 20 deg
-positioned more post
-over coverage`

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Center Edge Angle

A

-coverage of the femortal head by acetabulum
-lat rim of acetabulu, to center of femoral head
-Norm: 22-50

<acetabular>pincer- type impingement
</acetabular>

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Acatabular Inclination

A

-measure of debth
-line parallel to teardrops to lat acetabulum

Norm: 32-45

> acetabular inclination

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Acetabular Labrum

A

-ring of fibrocartilage; blends with acetabular lig
-deepens socket
-negative pressurre
-proprioceptive nerves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Femoral Head

A

-hyaline cartilage
-medial, superiorly, anteriorly
-lig teres attached to foeva

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Angle of Inclination

A

-frontal plane measurement, smaller in women, greater during childhood

Norm: 125

> 125: Coxa valga: straighter in relation to shaft, less shear on neck, decreases MA of abductors, decreases coverage of acetabulum, associated with genu varum (kids with CP and spasticity have valgum)

<125: Coxa Vara: increased stability and MA, increased shearing forces on neck, associated with genu valgum and SCFE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Angle of Torsion

A

-transverse plane measurement
-axis through head and neck and femoral condyles

Norm: 10-20deg
Anteversion: >15-20; increased internal rotation to compensate, decreased stability; toe in

Restroversion: < 10-15; increased external to compensate rotation; toe out

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Most Congruence

A

-flexion, ab, slight ER

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Joint Capsule

A

-irregular; dense fibrous tissue
-retinacular fibers: carry BVs
-Femoral neck is intracapsular
-Trochanters are extracapsular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Hip Bursae

A

Lateral:
-trochanteric, reduce friction btwn post facet, glut max, IITB and greater troch

Anterior:
-glut med bursa
-iliopsoas bursa

Posterior:
-ischiogluteal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Ligaments

A

Ligamentum Teres:
-ligament of the head of the femur
-reisits rotation in 90 deg of flexion
-intrarticular but extrasynovial
-attaches from acetabular notch, transverse acetabular lig, to fovea
-secondary blood supply (avascular necrosis)

Iliofemoral Lig:
-Y lig
-ASIS to intertrochanteric line
-anterior stability
-reists ER

Pubofemoral Lig:
-pubis to iliopectineal eminence
-supports inferior femoral neck
-resists ER in Ext

Ischiofemoral Lig:
-posterior acetabulum and labrum to greater troch
-resist IR

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Capsuligamentous Tension

A

Close packed: ext, abd, IR
Loose packed: flx, abd, mid-rotation

-ligs taut in ext
-capsule and ligs suport 2/3 body weight w/o muscles
-LoG is post to hip, slight ext
-most vulnerable to post dislocation in flx and abd

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Bony Architecture

A

-trabeculae line up along stress lines
-weightbearing stress passes from SI to acetabulum
-femoral head transfers forces to shaft, bending the neck (superior tensile forces and inferior compressive forces)
-Head, arms and trunk create shearing forces with ground reaction forces

19
Q

Trabeculae Systems

A

Medial:
-Superior to inferior
-reissts vertical compressive forces

Lateral:
-Lateral to medial
-resists shear forces of HAT and GRF

Zone of weakness:
-lateral and superior to lesser trocanter

20
Q

Joint Pressures

A

-peak pressure in single limb stances on superior acetabulum
-smaller area in women = higher peak stress
-greatest prevalance of degeneration

21
Q

Femur on Acetabulum

A

-convex on concave

Flx: head spins posteriorly
ext: head spins anteriorly
Abd: head rolls superior, glides inferiorly
Add: head rolls inferior, glides superiorly
IR: head rolls anterior; glide posterior
ER: head rolls posterior; glide anterior

22
Q

ROM

A

Flexion: 90 w/ ext and 120 w/ flx
Extension: 10-30
Abduction: 45-50
Adduction: 20-30
IR & ER: 40-50

23
Q

Normal Gait ROM Requirements

A

flx: 30
ext: 10
Ab/ad: 5
IR/ER: 5

24
Q

Pelvis on Femur

A

-concave on convex

Anterior Pelvic Tilt: hip Flex

Posterior pelvic tilt: hip ext

Lateral Pelvic Tilt: ABd or ADD
-opposite pelvic hike= stance hip ABD
-Opposite pelvic drop= stance hip ADD

Lateral Pelvic Shift: ADD on shift side, ABD on opposite

Forward Rotation: NWB pelvis moves anteriorly, WB moves IR

Backward Rotation: NWB pelvis moves posteriorly, WB moves ER

25
Q

Pelvifemoral Motion

A

Forward Bending: spinal flx, APT, hi flx

Sidlying Leg lift: hip abd, LPT, lumbar sine bend

26
Q

Hip Flexors

A

-bring swing limb forward
-resist extension

-iliopsoas, rec fem, TFL, Sartorius

27
Q

Hip Adductors

A

-stabilize hip in standing
-flex hip from extension
-extend from flexed

-pectineus: resist flx and abd
-add brev, long, mag
-gracilis: add and IR of tibia

28
Q

Hip Extensors

A

-glute max (best MA when hip flexed 70)
-hamstrings (least MA when knee flex >90)

Assissted by: pos glute med, piriformis, post add mag

29
Q

Hip Abductors

A

-counteract adds

Glute med
-abd in all positions
-ant flx, IR
-post ext, ER
-hip flx all IR

GLute min:
-abd and flx
-capsular tightening

Assisted by:
-glute max, sartorius

30
Q

Hip External Rotators

A

-ob internus and externus (decreased MA with hip flx, always ER)
-gemelli
-quad femoris (ER always)
-piriformis (hip flx, IR)

31
Q

Hip Internal Rotators

A

-no primary

Assissted by: ant glute med and min, tfl, adductors

32
Q

Hip in Bilateral Stance

A

-BW distributed equally
-1/2 HAT throough pelvis and femoral head
-LOG creates extensor

-class 1 lever

33
Q

Hip in Unilateral Stance

A

-stance hip supports compression for HAT and opp leg and abductors
-2-3x BW

Reduction of forces:
-lat lean of trunk tooward stance dec MA
-cane ipsi transfers forces
-cane contra releaves body weight forces and assist abductors

34
Q

Coxa Valga

A

-greater angle of inclination >125
-straighter
-dec MA of abd
-increase dislocation
-genu varum

35
Q

Coxa Varum

A

-lesser angle of inclination <125
-inc MA of Abd
-improved congruence
-more stress on neck
-genu valgum

36
Q

Anteversion

A

-greater torsion than normal >20
-more joint pressure
-less stability
-dec MA of abd
-head more anterior
-more IR, toe in

37
Q

Retroversion

A

-lesser torsion than normal <10
-stable
-head more posterior
-more ER, toe out

38
Q

Femoral Acetabular Impingement

A

-FAI
-bony overgrowth on femur and acetabulum
-can lead to labral tears
s/s: groin pain, dull aching, stiffness

CAM: head and neck, athletes, pistol grip

Pincer: pelvis and acetabulum, females

39
Q

Hip Labral Tear

A

-dec center edge angle, retroversion, coxa vara
-trauma

s/s: sharp ant pain, clicking, stiffness

40
Q

SCFE

A

-slipped capital femoral eiphysis
-epiphysis slips down and back

S/S:
-klein’s line
-drehmann sign (hip flx with ER)
-leg length diff
-FAI

41
Q

Swayback

A

-Glute max paralysis with thoracic kyphosis
-pos pelvic tilt
-LOG behind greater troch

42
Q

Growth Plates

A

Femoral head/neck: 18
G troch: 18
Lesser troch: 18
Distal femur: 20

43
Q

Anterior Pelvic Tilt

A

-tight errectors and hip flexors
-weak glutes and abs
-increased hip flx
-lumbar lordosis
-LOG ant to hip

44
Q

Posterior Pelvic Tilt

A

-weak errectors and hip flexors
-tight glutes and abs

Movement Science (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions