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Anatomy- semester 2 > MSK LE Best- slide 29 on (exam 2) > Flashcards

MSK LE Best- slide 29 on (exam 2) Flashcards

1
Q

T/F: the plantaris and popliteus cross two joints

A

FALSE. they do not cross two joints

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2
Q

List 3 muscles that are knee extensors

A

-vastus mediaris -vastus lateralis and vastus intermedius

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3
Q

Veins of the LE: -anatomic superficial veins are

A

Greater Saphenous vein Lesser Saphenous vein

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4
Q

Veins of the Lower Extremity: Anatomic deep veins are?

A

-Anterior Tibial veins -Posterior Tibial veins -Peroneal (Fibular) veins -Popliteal vein -Femoral vein -Deep Femoral vein -Common Femoral Vein -Pelvic veins

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5
Q

The deep and superficial veins of the LE are connected by _______ veins

A

perforating

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6
Q

DVT that become Pulmonary Emboli occur in the: (hint lots of areas)

A

Proximal portion of the Greater Saphenous vein in the Thigh -Deep veins of the Leg, Thigh, and Pelvis: -Anterior Tibial veins -Posterior Tibial veins -Peroneal (Fibular) veins -Popliteal vein -Femoral vein -Deep Femoral vein -Common Femoral Vein -Proximal Portion of the Greater Saphenous vein -Pelvic veins

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7
Q

Dermatomes: -L1= -L2= L3 L4 L5= S1= S2=

A

?

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8
Q

Myotomes: _____ _______ are used to test Myotomes

A

Joint Movements

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9
Q

Myotome levels: -Hip extensors= -Hip flexors=

A

Primary Nerve Segments used Hip Extensors: L5-S1 Hip Flexors: L1-2

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10
Q

Myotome levels: -knee extensors ? -Knee flexors ?

A

Knee Extensors: L3-4 Knee Flexors: L5-S2

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11
Q

Myotome Levels: -Foot Dorsiflexors? -Foot plantarflexors?

A

Foot Dorsiflexors: L4-5 Foot Plantarflexors: S1-2

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12
Q

Myotome Levels: -Toe Extensors ? Toe Flexors?

A

Toe Extensors: L5-S1 Toe Flexors: S2

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13
Q

When people can’t walk on their toes, what myotome level is this affecting?

A

S1-S2

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14
Q

How are myotomes tested?

A

myostatic (stretch) reflexes

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15
Q

Causes of abnormalities in stretch reflexes in the lower extremities include:

A

herniated nucleus pulposis, peripheral neuropathy, spinal stenosis, hypothyroidism, motor neuron disease

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16
Q

Patellar reflex=

A

Knee Jerk Reflex, Quadriceps Muscle Stretch Reflex) tests L2,3,4 cord segments

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17
Q

Ankle Jerk Reflex:

A

(Achilles Reflex) tests S1/S2

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18
Q

Foot drop= -what nerve level affected? -Causes?

A

can’t dorsiflex foot– causes include L5 injury (HNP), Sciatic, or Peroneal (Fibular) nerve injury, ALS, MS.

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19
Q

Pes Anserinus - SGT FOS: -attachments at the Pes Anserinus? -muscles? -nerves to these muscles?

A

-Attachments at the Pes Anserinus (aka Goose foot) —Clinical Significance– Pes Anserinus Bursitis > Chronic Knee pain -Sartorius -Gracilis -SemiTendinosus –Nerves to these muscles – SGT FOS FOS = Femoral, Obturator, Sciatic

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20
Q

Describe the Sartorius

A

Sartorius- crosses 2 joints (hip and knee joint) helps you flex the hip joint and flex knee joint and externally rotate the femur Sartorius is anterior– innervated by the femoral nerve

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21
Q

Describe the Gracillis

A

Gracilis- innervated by obturator nerve (ADDUCTOR muscle= medial compartment of the thigh) . Obturator nerve does adductor muscles

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22
Q

Describe the Semitendonosis

A

Semitendonosus– innervated by the sciatic nerve (hamstrings= back of thigh= sciatic nerve))

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23
Q

Describe Sciatica

A

Sciatica is a set of symptoms, not a diagnosis. —Pain caused by compression and/or irritation of one of the five nerve roots that are branches of the Sciatic Nerve, L4 to S3.

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24
Q

Sciatica–> The compression or irritation of the Sciatic nerve can be caused by:

A

-Spinal disk herniation -Degenerative disk disease -Spinal Stenosis -Spondylolisthesis: with or without Spondylolysis -Piriformis Syndrome: compression of nerve beneath muscle -Sacroiliac joint dysfunction: unhealthy posture -Pregnancy

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25
Q

Sciatica: -where is pain felt? -Pain can be accompanied by?

A

-pain is felt in the lower back, buttock, and/or parts of the leg and foot. -This pain can be accompanied by numbness and muscle weakness.

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26
Q

Sciatic nerve innervates:

A

Innervates the muscles of the posterior thigh (biceps femoris, semimembranosus and semitendinosus) and the hamstring portion of the adductor magnus (remaining portion of which is supplied by the obturator nerve). Indirectly innervates (via its terminal branches) all the muscles of the leg and foot.

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27
Q

Iliopsoas –level of maximal nerve respnse?

A

L2,L3

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28
Q

Adductor longus –level of maximal nerve respnse?

A

L2, L3, L4

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29
Q

Vastus medialis vastus lateralis –level of maximal nerve respnse?

A

L2 L3 lateralis also has L4

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30
Q

Tibialis anterior:

A

L4,L5

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31
Q

Peroneus Longus

A

L4,L5,S1

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32
Q

Extensor Hallicus Longus

A

L4,L5,S1

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33
Q

Flexor Hallucis Longus

A

L5,S1

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34
Q

Medial Gastrocnemius Lateral Gastrocnemius Gluteus Maximus Biceps Femoris

A

L5,S1

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35
Q

The L5 nerve root can be affected by:

A

**-central herniated nucleus pulposis at the L4-5 level **-lateral herniated nucleus pulposis at the L5-S1 level

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36
Q

Herniation to the L4/L5 nerve affects which nerve root

A

L5/S1 -GET AN MRI to find out what the issue is and where

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37
Q

Sx of L5 motor nerve root damage: -motor findings? weakness of which muscles?

A

-Motor findings include: Foot Drop on the same side as the lesion from weakness of the Tibialis anterior, Peroneus longus, Extensor hallucis longus muscles. -Motor findings can include Trendelenberg gait from weakness of the Gluteus medius and minimus.

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38
Q

The L 5 nerve root can be affected by a central herniated nucleus pulposis at the L4-5 level or a lateral herniated nucleus pulposis at the L5-S1 level: -sensory findings can include?

A

-pain on the dorsum of the foot -numbness on the lateral calf

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39
Q

Damage to L4 nerve root: -motor weakness= -Screening exam= -Reflexes=

A

-(inability) of extension of quadriceps -screening= inability to squat and rise -Knee jerk diminished

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40
Q

Damage to L5 nerve root: -motor weakness= -Screening exam=

A

-dorsiflexion of great toe and foot -Inability to heel walk

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41
Q

Damage to S1 nerve root: -motor weakness= -Screening exam= -Reflexes=

A

-plantar flexion of great toe and foot -Inability to toe walk (walk on toes) -Ankle jerk diminished

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42
Q

Spondylolysis=

A

condition where the vertebrae are separated, in most cases from a fracture (*=fracture)

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43
Q

spondylolisthesis=

A

means the vertebrae have separated and moved out of proper position (aka **slide)

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44
Q

Scotty dog=

A

pars interarticularis (refers to a small segment of bone that joins the facet joints in the back of the spine)

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45
Q

loss of the neck of the scotty dog=

A

spondylolysis (L4-L5)

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46
Q

Piriformis Syndrome=

A

a tight piriformis muscle is taut and presses against the sciatic nerve, irritating it. This causes pain to travel up and down the nerve. (“wallet syndrome” aka piriformis syndrome– a large wallet pinches on the piriformis muscle—>pinches the sciatic nerve–extremely painful

47
Q

Innervation of the lower leg: -the sciatic nerve gives rise to which nerves?

A

sciatic nerve gives rise to the Common fibular (aka peroneal nerve) that goes lateral and anterior, and the tibial nerve (travels medial and posterior).

48
Q

Tibial nerve goes:

A

**posterior and medial to plantar flex and invert the foot -Posterior nerves will plantar flex foot and flex toes -Medial nerves will invert the foot

49
Q

Fibular (aka peroneal) nerves go:

A

anterior and lateral to dorsiflex and evert the foot

50
Q

Common Fibular (aka Peroneal nerve)(anterior and lateral): -Divides into the _____

A

-Deep Fibular/Peroneal nerve and the Superficial Fibular/Peroneal nerve - Superficial peroneal nerve (lateral)motor fx= foot eversion -Deep peroneal nerve motor (anterior) fx= foot dorsiflexion (L5), toe extension

51
Q

Describe the proximal lower leg:

A

-Again, note deep and superficial veins DVT in deep veins Greater/Long Saphenous Vein is superficial. Lesser/Small Saphenous Vein is superficial. Deep Veins where DVT occur: -Anterior Tibial v is just lateral to the Tibia -Popliteal v just posterior to the Tibia. The Popliteal Vein will bifurcate into the Posterior Tibial Vein and the Common Peroneal/Fibular vein.

52
Q

Mid lower leg innervation:

A

peroneal (fibular) nerve

53
Q

Mid lower leg: -anterior compartment consists of which arteries and veins?

A

Anterior Tibial Artery and Vein and Deep Peroneal nerve = anterior compartment

54
Q

Mid lower leg: -Posterior compartment=

A

Posterior Tibial Artery and Vein, Peroneal/Fibular Artery and Vein, and the Tibial Nerve (are in Deep Posterior Compartment)

55
Q

Mid Lower LegCompartments/Compartment Syndromes (describe): -when evaluating compartment syndrome–> what MUST you document?

A

In injuries to the leg, to evaluate for Compartment Syndrome make sure that you document the presence of pulses and sensory and motor function distal to the injury.

56
Q

Anterior compartment (of the thigh)= contains ?

A

-vastus lateralis -vastus intermedius -Rectus femoris -vastus medialis -sartorius -Iliotibial band -Femoral artery and vein, saphenous vein, adductor canal

57
Q

Adductor compartment (aka medial/anterior compartment of the thigh)=

A

-obturator externus -gracilis -adductor longus -adductor brevis -adductor magnus -Deep femoral artery and vein

58
Q

Posterior compartment of the thigh=

A

-biceps femoris (short head and long head) -semitendonosis -semimembranosus -sciatic nerve

59
Q

Anterior compartment of the lower leg= contains?

A

-deep peroneal nerve -tibialis anterior -extensor hallucis longus -extensor digitorum longus

60
Q

Lateral compartment of the lower leg= contains?

A

-peroneus longis -peroneus brevis

61
Q

Posterior compartment of the lower leg= contains?

A

-soleus -gastrocnemius (lateral and medial heads) -

62
Q

Deep posterior compartment of the lower leg= contains?

A

-tibialis posterior -flexor digitorum longus -flexor hallucis longus -posterior tibial artery, vein, and posterior tibial nerve

63
Q

Compartment Syndrome: -sx? -causes?

A

-pain out of proportion to exam findings -pain on muscle stretch -loss of sensation -6 P’s Causes: burns, exercise, trauma, revasc. procedures -leads to a decrease in capillary perfusion, decreased tissue viability with fast and irreversible muscle/nerve damage

64
Q

T/F: one can develop compartment syndrome within the fascia

A

true. or if cast is too tight! (- 2/2 bleeding, edema, or whatever is going on beneath a fascial plane, or 2/2 tight bandage or cast )

65
Q

Compartment syndrome: -outcomes?

A

-Good outcome if Early intervention (<8 hrs) and adequate fasciotomy -too late–> BAD–> >35 hrs, morbidity high

66
Q

Tom, Dick and Nervous Harry

A

Note Anterior and Posterior Tibial vessels image

67
Q

The articular surface of the talus articulates with the _____

A

tibia (distal end) -note: the articular surface of the talus is wide anteriorly, and narrow posteriorly)

68
Q

which 2 structures does the interosseus ligament separate?

A

Tibia and fibula

69
Q

Deltoid Ligament of the ankle: -Deep components? -Superficial components?

A

**deltoid ligament= MEDIAL ligament of the ankle joint (has several components) -Posterior tibiotalar part (right below it is the medial tubercle of the talus) -anterior tibiotalar part -tibiocalcaneal part -tibionavicular part -Plantar calcaneonavicular ligament (connects the tuberosity of the navicular bone to the sustentaculum tali of calcaneous bone)

70
Q

Lateral ankle Ligaments=

A

-anterior talofibular ligament -Calcaneofibular ligament (note: lateral ligaments are NOT as strong) Posteriorly: just have the Posterior talofibular ligament

71
Q

Plantar Ligaments and Plantar Aponeurosis (bottom of the foot)

A

-Fibularis longus tendon (comes in and crosses over the bottom of the foot from lateral to medial, & inserts on the first metatarsal. Helps support the foot) -Short plantar ligament (connects calcaneal tubercle to calcaneocuboid joint) -Plantar calcaneonavicular ligament (located medially, on bottom of foot) -more superficial bottom of the foot: -Long plantar ligament (goes over the short plantar ligament) -Plantar Aponeurosis**= inserts on medial process of calcaneal tuberosity and goes to all the digits

72
Q

Tarsal tunnel syndrome=

A

The tarsal tunnel refers to the canal formed between the medial malleolus (part of the ankle bone, this is the bump on the inside of the ankle) and the flexor retinaculum (a band of ligaments that stretches across the foot). Inside the tarsal tunnel are the nerves, arteries, and tendons that provide movement and flexibility to the foot. The sensory nerve in the ankle, the tibial nerve, passes through the tarsal tunnel and can be compressed and irritated causing numbness and tingling of the foot and toes as this nerve provides sensation to the bottom of the foot. Tarsal tunnel syndrome has also been called posterior tibial neuralgia.

73
Q

Tarsal tunnel- location?

A

-located b/w the talus and flexor retinaculum -it contains tendon of flexor hallacis longus, tibial nerve, Posterior tibial artery, Tendon of flexor digitorum longus, Tendon of tibialis posterior) AKA Tom dick and very nervous harry

74
Q

List Tom Dick and very nervous harry

A

(contents of the tarsal tunnel:) Mnemonic: Tom, Dick, and Nervous Harry. -*Tibialis Posterior Tendon, -Flexor *Digitorum longus, -Posterior Tibial *Artery - Tibial Nerve -Flexor Hallicus longus tendon

75
Q

Where do you palpate the posterior tibial pulse?

A

-midway between the heel and medial malleolus

76
Q

Peroneus Brevus and Peroneus Longus Tendons are located laterally behind the ______

A

fibula

77
Q

Pimenta’s Point=

A

=the point where you can eval. the posterior tibial artery –>Posterior Tibial artery is palpated halfway between tip on Medial Malleolus and insertion of the Achille’s tendon. (aka midway b/w the heel and medial maleolus)

78
Q

Where do you palpate the Dorsalis Pedis Artery?

A

lateral to the extensor hallucis longus tendon (or medially to the extensor digitorum longus tendon) on the dorsal surface of the foot,

79
Q

Dorsalis pedis artery is located:

A

-underneath the **inferior extensor retinaculum -it innervates the first dorsal interosseus muscle -lateral to it you have the tendons of the extensor digitorum longus and fibularis tertius

80
Q

Tendons of the fibularis longus and brevis muscles innervate the ____

A

5th metatarsal digit

81
Q

Describe inversion of the foot

A

sole of foot faces in, some **adduction of the forefoot

82
Q

Describe eversion of the foot

A

more difficult, sole of foot out laterally, some abduction

83
Q

Longitudinal axis=

A

inversion and eversion

84
Q

Vertical axis=

A

adduction/abduction

85
Q

Coronal axis=

A

dorsiflexion/plantarflexion

86
Q

Ankle sprain=

A

**is where one or more of the ligaments of the ankle are partially or completely torn.

87
Q

What is the MC mechanism of injury for ankle sprains?

A

-**Inversion, lateral ligament injuries are 85% of all ankle sprains. -*Most common lateral ligament injured is the anterior talofibular Ligament (ATFL).

88
Q

On the medial side of the ankle, which ligaments are injured with pronation and rotation of the hindfoot?

A

(pronation=eversion) the strong Deltoid ligament complex [Posterior tibiotalar (PTTL), Tibiocalcaneal (TCL), Tibionavicular (TNL), and Anterior tibiotalar ligaments (ATTL)] is injured with pronation and rotation of the hindfoot.

89
Q

Which ligaments of the foot are stabilizing, but can be sprained with **external rotation of the leg and dorsiflexion of the ankle?

A

Tibiofibular syndesmosis (Interosseus ligaments)

90
Q

Describe the MOI for Lateral, Medial and High Ankle sprains. -describe ligaments involved

A

image

91
Q

Passive inversion or plantar flexion with inversion should replicate symptoms for a ______ ________sprain.

A

lateral ligament

92
Q

Passive eversion should replicate symptoms for a _____ _______ sprain.

A

medial ligament

93
Q

high ankle sprain MOI=

A

-external rotation and dorsiflexion -ligaments involved: ant.inferior tibiofibularligament, posterior inferior tibiofibular ligament, transverse tibiofibular ligament, interosseus membrane, interossues ligament, inferior transverse ligament

94
Q

Lateral ankle sprain MOI=

A

inversion/plantar flexion -anterior talofibular ligament, cancaneo-fibular ligament, posterior talofibular ligament

95
Q

**Ottawa Ankle Clinical Predication Rules: -An ankle X-ray series is required if:

A

-there is PAIN in the malleolar zone and any of these findings: -A-bone tenderness at A (lateral malleolus) -B- bone tenderness at B (medial malleolus) -Inability to bear weight Ottowa ankle rules: Medial malleolus pain 6 cm (malleolar zone) Lateral malleolus pain-up to 6 cm Unable to weight bear

96
Q

Ottawa Ankle Clinical Predication Rules: -A foot x-ray series is only required if:

A

there is pain in the **midfoot zone and any of these findings: -Bone tenderness at C (base of 5th metatarsal) -Bone tenderness at D (navicular bone) -Inability to bear weight

97
Q

With ankle injuries what do you need to look for: **

A

Look for impingement, Tarsal Tunnel Syndrome, Sinus Tarsi Syndrome, Cartilage or osteochondral injuries, Peroneal tendinopathy or subluxation, or Posterior tibial tendon dysfunction

98
Q

What are the 4 Major Injury mechanisms? (of ankle fractures)

A

-SA =Supination Adduction -SE =Supination External Rotation -PA =Pronation Abduction -PE= Pronation External Rotation Note how this classification works: -Initial position of the foot and hindfoot (pronation or supination) and -The direction of the injuring force acting through the Talus

99
Q

Supination-lateral rotation injury=

A

Lateral rotation forces applied to a supinated foot initially result in rupture of the anterior tibiofibular ligament (stage I). As the forces continue, a short oblique fracture of the distal portion of the fibula occurs (stage II). Stage III involves a fracture of the posterior aspect of the tibia. Stage IV is a fracture of the medial malleolus.

100
Q

Supination-adduction injury.

A

Adduction forces applied to a supinated foot initially result in a traction or avulsion fracture of the distal portion of the fibula or rupture of the lateral ligaments (stage I). As forces continue, fracture of the medial malleolus or rupture of the deltoid ligament occurs (stage II). The fibular fracture is typically transverse, and that of the medial malleolus is oblique or nearly vertical.

101
Q

Pronation-lateral rotation injury

A

Forces of lateral rotation applied to a pronated foot initially result in rupture of the deltoid ligament or fracture of the medial malleolus (stage I). As forces continue, the anterior tibiofibular ligament is ruptured (stage II). A high fibular fracture (stage III) and fracture of the posterior tibial margin (stage IV) are the final stages in this mechanism of injury.

102
Q

Pronation-abduction injury.

A

The first two stages of this injury are identical to those of the pronation-external rotation fracture complex. Stage III is a transverse supramalleolar fibular fracture that may be comminuted laterally.

103
Q

Supination-adduction injuries: -associated fx’s? -how common are these injuries?

A

-Note associated avulsion fracture of the tip of the Lateral Malleolus and Oblique Fracture of the base of the Medial Malleolus Supination-adduction: -occurs in 20-25% of ankle fractures -foot is fixed on the ground in supination when and adduction force is applied to the talus -Stage 1: supination results in a tear of the lateral collateral ligament or an avulsion fx of the lateral malleolus below the level of the tibial plafond -stage 2: more talar tilt results in the medial malleolus being pushed off in a vertical or oblique way

104
Q

Supination-External Rotation injury: -how common?

A

-MC type of ankle fx and occurs in about 60-70% of all ankle fractures -the foot is fixed on the ground in supination and an exorotation force is applied to the talus

105
Q

Supination-External Rotation injury: -Describe stage 1-4

A

stage 1= rupture of anterior inferior tibiofibular ligament stage 2= oblique fx or spiral fx of the lateral malleolus stage 3= rupture of posterior tibiofibular ligament or fx of the posterior malleolus of tibia stage 4: transverse fx of tibial malleolus

106
Q

Pronation Abduction (injury): -stage 1? -stage 2? -stage 3?

A

stage 1–> transverse medial malleolus fx distal to mortise stage 2–> posterior malleolus fx or posterior tibio-fibular ligament stage 3–> fibular fx, typically proximal to mortise, often w/ butterfly fragment medial injury= transverse to short oblique medial malleolar fx -lateral injury= comminuted impaction type distal lateral malleolar fx

107
Q

Pronation External Rotation Injury= fx of ?

A

**fracture of the Medial Malleolus, Posterior Malleolus, high Fibular fracture, and widening of Tibiofibular Syndesmosis Note: interosseus tendon is torn –>Tibia-fibular syndesmosis is torn–> this is VERY unstable!!!

108
Q

Pronation External Rotation: -continued exorotation of the talus will rupture the _____

A

anterior tibiofibular ligament

109
Q

**Maisonneuve Fracture Complex=

A

When you see a significant widening of the tibiofibular space suggesting an injury to the tibiofibular syndesmosis consider a proximal fibular fracture **Maisonneuve fx complex= significant widening of the tibiofibular space

110
Q

Flexor Hallucis Longus=

A

crosses the midline and goes medially (from fibula, crosses midline, and goes to medial malleolus, and then under the foot to the distal phalanx *Flexor Hallucis Longus Tendon going posterior to Tibia and under the Sustentaculum Tali

111
Q

** Proximal Fifth Metatarsal Fracture=aka

A

**Bob Jones Fracture (Peroneus longus and brevis insert on the 5th metatarsal, 1 of the criteria for the ottowa (pain of the 5th metatarsal) this Pt gets an xray)

112
Q

Tarsal-Metatarsal Joint aka

A

lisfranc joint (The tarsometatarsal joints (Lisfranc joints) are arthrodial joints in the foot. The tarsometatarsal joints involve the first, second and third cuneiform bones, the cuboid bone and the metatarsal bones.)

113
Q

Lisfranc Fracture/dislocation=

A

Lisfranc fx= multiple extensive fx’s in the midfoot and metatarsal joints -witwer talks about “foot in the stirups” and the back part of the foot is moving around

Anatomy- semester 2 (8 decks)

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