Written Flashcards

1
Q

What is knee extension rom actively?

A

0

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2
Q

What is the knee extension prom?

A

5-10

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3
Q

What is knee flexion rom?

A

130-140

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4
Q

What is knee internal rotation rom?

A

0-30

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5
Q

What is knee external rom?

A

0-40

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6
Q

When is knee rotation the greatest?

A

90 flexion

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7
Q

What are the femoral condyles separated by?

A

Intercondlyar fossa posteriorly

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8
Q

What do the femoral condlye bend to for?

A

Concave trochlear groove

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9
Q

What plane has the greatest surface area for the femoral condlyes?

A

Sagittal plane

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10
Q

Which femoral condlye lip is longer?

A

Lateral condlye

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11
Q

Which femoral condlye is larger and longer?

A

Medial

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12
Q

What is the tibial plateau in the frontal plane?

A

Concave

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13
Q

What is the medial femoral condlye in the sagittal plane?

A

Concave

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14
Q

What is the lateral femoral condlye in the sagittal plane?

A

Convex

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15
Q

Why is the femoral condlye axis oblique?

A

Femoral condlyes are larger than tibial plateaus

Medial condlye is larger than lateral condlye

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16
Q

What is the medial tibiofemoral angle?

A

Femoral head hangs over femoral shaft
Femoral shaft doesn’t coincide with the leg
Creates an obtuse angle

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17
Q

What is normal for middle tibiofemoral angle?

A

185-190

Physiologic valgus

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18
Q

What is an increased medial tibiofemoral angle?

A

Greater than 195

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19
Q

What is genu valgum?

A

Knock knee

Coxa vara of knee

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20
Q

What is lower than normal medial tibiofemoral angle?

A

Less than 180

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21
Q

What is genu varum?

A

Bow legged

Coxa valga

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22
Q

What is the q angle?

A

Line from Asis to midline intersecting with mid patella

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23
Q

What is a normal q angle?

A

15

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24
Q

Open chain knee flexion arthrokinematics?

A

Concave tibia on convex femur
First 25 minimal movement
After posterior bone motion roll and glide

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25
Q

Open kinetic knee extension arthokinematics?

A

Concave tibia on convex femur

Anterior

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26
Q

Close chain arthokinematics for knee flexion?

Sit to stand

A

Bone motion roll posterior glide anterior

25 minimal gliding

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27
Q

What is the arthrokinematics for closed kinetic chain knee extension?
Sit to stand

A

Bone motion roll anterior glide is posterior

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28
Q

What is the screw home mechanism closed kinetic chain?

A

Internal rotation of femur on tibia

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29
Q

What is the screw home mechanism open kinetic chain?

A

External rotation of tibia on femur

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30
Q

When does the 20 of rotation occur in the screw home mechanism?

A

During the last 30 of extension

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31
Q

In the open kinetic chain the medial plateau is bigger so it moves_______ causing __________ rotation.

A

Anterior, external rotation

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32
Q

In the closed kinetic chain the medial femoral condlye moves ________ causing ___________ rotation.

A

Posterior,internal rotation.

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33
Q

Unlocking the knee from full extension starts with?

A

Log posterior to knee

Popliteaus muslce

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34
Q

In closed kinetic chain unlocking cause?

A

External rotation of femur

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35
Q

In open kinetic chain unlocking knee causes?

A

Internal rotation of femur

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36
Q

Limits knee extension
Varus and valgus stress
Anterior posteior transition of tibia on femur
Medial and lateral rotation of tibia on femur

A

General ligament function

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37
Q

This ligament attaches to the joint capsule and medial meniscus
Tight in knee extension
Resist valgus stress
Lateral rotation of tibia
Medial femoral condlye slope ant to medio prox tib

A

Mcl

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38
Q

No joint or menisci attachment
Tight in knee extension
Resist varus stress
Medial rotation of tibia

A

Lcl

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39
Q

Postlat- tight knee extension
Antmed- tight knee flexion
Extra synovial
Resist ant transition, prevent hyperextension
Limit internal rot of tibia
Ant tib to med and lateral menisci to post lat prox knee

A

ACL

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40
Q
Postlat tight in extension 
Antmed tight in flexion 
Extra synovial 
Resist post displacement of tibia 
Post tib to sup and ant inner knee
A

PCL

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41
Q

Acruate ligament y shaped
Tight in full knee extension
Prevent hyperextension
Run post to med tibial plAteau

A

Posterior capsular ligament

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42
Q

Lax and allow great amount of motion

Vertical fibers that Attach above margins of femoral condlye

A

Joint capsule

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43
Q

Affects patellar tracking
Cylinder invaginated post
Innervated by mechano receptors

A

Extensor retinaculae

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44
Q

Synovial fluid that is not re absorbed when an adult?

A

Police

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45
Q

Biconcave fibrocartilagious tissue between femur and tibia

A

Menisci

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46
Q

Medial menisci is_____ compared to lateral menisci

A

Wider

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47
Q

Menisci attaches to tibia by

A

Coronal lig

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48
Q

Menisci attach to patella by

A

Patellamensici lig

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49
Q

Attach to
Pcl
Popliteaus
Medial femoral condlye

A

Lateral menisci

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50
Q

Attach to
Mcl
Semimembranous

A

Medial menisci

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51
Q

Increase stability by increasing
Congruency
Concavity of plateaus
Surface area

A

Menisci increased stability by

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52
Q

What does the menisci follow?

A

Femoral condlyes

53
Q

In closed kinetic chain knee flexion the menisci move?

A

Posterior bc femur moves anterior

54
Q

In open kinetic chain knee extension menisci moves?

A

Anterior bc femur moves posterior

55
Q

What are the components of the patella femoral joint?

A

Patella bi convex on concave trochlear notch of femur

56
Q

What is the medial condlye covered in?

A

Hyaline cartilage

57
Q

The lateral condyle is ________ then the medial condlye

A

Higher

58
Q

Patellofemoral joint capsule is continuous with

A

Tibiofemoral joint capsule

59
Q

What is the function of the patellofemoral joint.

A

Extensor mechanism
Inc lever for quads
Inc pulley for quads

60
Q

In flexion the patella slides ___________ seating Btwn femoral condlyes

A

Distally

61
Q

In full flexion the patella______ into the intercondylar notch

A

Sinks

62
Q

In knee extension the patella slides _________ to ant surface of distal femur

A

Ant

63
Q

In early flexion distal patella is with ________ trochlea

A

Prox

64
Q

In continued flexion the patella is in_________ contact, more ________ on __________ portion of patella

A

More, prox, superior

65
Q

The patellas medial facet is ________ intercondylar notch and ________ facet makes first contact during flexion past 90

A

In, odd

66
Q

The _______ and ________ facet are ________ in the notch during 130 of flexion.

A

Lateral, odd, sitting in

67
Q

Knee extensor muscle

A

Quad

Articularis genu

68
Q

Knee flexor muscles

A
Hamstring
Sartorious
Gracilis 
Popliteaus 
Gastroc
69
Q

Internal rotator of tibia on femur

A
Semimembranous 
Semitendious 
Gracilis 
Sartorious 
Popliteaus
70
Q

External rotators of tibia on femur

A

Biceps femoris

TFL

71
Q

Talus and calcaneous

A

Hind foot

72
Q

Navicular, cuboid and cunieforms

A

Mid foot

73
Q

Metatarasals and phalanges

A

Fore foot

74
Q

Talus, distal fib, tib

A

Talocruaral joint

75
Q

Talocrural joint component

A

Wedge talus on concave mortis ( distal tib, fib, fib malleoli)

76
Q

Proximal tib fib joint is

A

Plane joint

77
Q

Distal tib fib joint is

A

Syndesmosis

Concave tib on convex fib.

78
Q

Control valgus motion, check extreme motion

Very strong lig

A

Medial collateral lig of talocrural joint

79
Q

Control lateral and varus stress

Weak lig

A

Lateral collateral lig of talocrural joint

80
Q

Open kinetic chain arthokinematics of talocrural joint

A

Convex talus on concave mortis

81
Q

Motions of talocrural joint

A

Dorsiflexion

Plantarfleixo.

82
Q

Closed kinetic chain arthokinematics of talocrural joint

A

Concave mortise on convex talus

83
Q

With dorsiflexion__________ rotation occurs in the talocrural joint

A

Internal

84
Q

With plantar flexion ___________ rotation occurs in the talocrural joint

A

External

85
Q

Dampens rotational forces imposed by body weight while maintaining contact of foot with the floor
Prevent unwanted rotational forces

A

Subtalar joint

86
Q

Interosseous talocalcaneal
Ligamentum cervics
Posterior and lateral talocalcaneal

A

Ligaments of subtalar joint

87
Q

Posterior facet arthrokinematics for subtalar joint

A

Concave talus on convex calcanleous

88
Q

Anterior and medial facet arthokinematics for subtalar joint

A

Convex talus on concave calcaneous facets

89
Q

Subtalar joint arthokinematics go opposite ways so have ________ motion

A

Scewlike

90
Q

Motions at subtalar joint t

A

Pronation and supination

91
Q

Adduction
Inversion
Plantar flexion

A

Supination

92
Q

Abducton
Eversion
Dorsiflexion

A

Pronation

93
Q

Calcaneous will invert two times as many degrees as evertong

A

Subtalar neutral

94
Q

Closed kinetic chain of subtalar supination.

A

Dorsiflexion
Abduction
Inversion

95
Q

Closed kinetic chain of subtalar joint pronation

A

Plantar flexion
Adduction
Eversion.

96
Q

Talocalcaneal joint is made up of

A

Talonsvicular and subtalar joint together

97
Q

Key to foot function

Joint distal to TCN form a single elastic unit moves in response to talus and calcaneous

A

Talocalcaneonavicular joint functions

98
Q

Made up of talonavicular joint and calcaneocubodial joint

A

Transverse tarsal joint

Midtarsal joint

99
Q

Cuboid and navicular are _____– in weight bearing of transverse tarsal joint.

A

Immobile

100
Q

Lateral band of bifurcate lig
Dorsal calcomedocuboid lig
Plantar calcomedocuboid lig
Long plantar lig

A

Lig of midtarsal joint

101
Q

Link between hind foot and forefoot
Add to increase supination and prontation
Rom compensates for forefoot for hind foot postion

A

Midtarsal joint function

102
Q

Distal tarsal row and base of metatarsals

A

TarsometatarsAl joint

Tmt

103
Q

Continuous with midtarsal joint
Regulate position of metatarsals and phalanges and weight bearing surfaces
Adjust for rear foot motion
Hollowing of foot

A

Tarsometarsal joint

104
Q

Functional unit formed by metatarsal and associated cuneiforms

A

Rays

105
Q

Allow foot to hinge at toes

A

Function of metarsophalangeal joint

106
Q

45 flexion

A

1 mcp rom flexio

107
Q

70 extension

A

1 mtp rom

108
Q

40 flexion and extension

A

2-5 mtp

109
Q

Toes extend fascia tighten draw heel towards toes increase stability of foot
More efficient for pushing off

A

Windlass mechanism

110
Q

Smooth weight bearing shift to opposite foot

Maintain stability

A

Interphalangeal joint

111
Q

Calcaneous to toes

On both side of the foot

A

Longitudinal arch

112
Q

Tarsals with middle cuneiforms

A

Transverse tarsal arch

113
Q

Metatarsal

Second apex of arch

A

Transverse metatarsal arch

114
Q

Spring lig
Long plantar log
Plantar aponeurosis
Short plantar lig

A

Lig of arches of foto

115
Q
Gastroc and soleus
Plantaris 
Tibialis posteior 
Flexor hallicus longus
Flexor digitorium longus
Fibularis longus and brevis
A

Plantar flexor muscles

116
Q

Tibialis anterior
Extensor hallicus longus
Extensor digitorium longus
Perneous Fibularis

A

Dorsiflexors

117
Q

Tibialis posterior in open kinetic chains

A

Supinator

118
Q

Closed kinetic chain posterior tibialis

A

Pronation eccentrically

119
Q

Attributes of gait

A
Foot clearance
Pre positioning of foot for hs
Stability
Adequate step length 
Energy conservation
120
Q

Momentum initiated during push off

A

Swimg phase

121
Q

Toe off and continue until midswing

A

Acceleration

122
Q

Reference leg pass directly beneath body

A

Midswing

123
Q

Tibia pass beyond perpendicular and knee extending

A

Deceleration

124
Q

Low point of cog

A

Hs–> ff at push off

Double support

125
Q

High point of cog

A

Mid stance to mid swing
Single support
Lateral pelvic tilt

126
Q

During midstance knee flexes, giving _______ in cog is limited

A

Rise

127
Q

Movement of foot ankle knee when cog goes down ( hs) then up (ff)

A

Knee flexes
Plantar flexion
Pronation

128
Q

Movement of foot ankle knee when cog falls after midstance

A

Plantarlflexion
Supination
Extension

129
Q

What is the primary function of the knee?

A

Lengthen and shorten the lower limb