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Hip Ultrasound > Hip Ultrasound > Flashcards

Hip Ultrasound Flashcards

1
Q

Origin of gluteal muscles

A

posterior surface of ileum,

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2
Q

GLuteus minimus inserti

A

anterior facet of greater trochanter

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3
Q

glut medius insertion

A

supero posterior facets

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4
Q

glut max insertion

A

posterior femur, gluteal tuberosity below the trochanters and Iliotibial tract

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5
Q

sartorius origin

A

ASIS

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6
Q

Rectus femoris origin

A

AIIS

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7
Q

semimembranosus tendon and conjoint tendon orientation

A

semimembranosus tendon is anterior to conjoined tendon…. semimem origin is anterolateral to conjoint tendon

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8
Q

Hesselbach triangle landmark

A

apex laterallly - inferior epigastric vessels , inguinal ligament inferiorly, medial border is rectus abdominis

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9
Q

sportsman hernia pathological part

A

common aponeurosis

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10
Q

Spigelian hernia area

A

between rectus abdominis and lateral abdominal musculature ,

Lateral margin of rectus abdominis

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11
Q

Origin of indirect head of rectus femoris

A

laterally at the superior acetabular ridge

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12
Q

which rectus femoris head becomes a central aponeurosis

A

indirect head.

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13
Q

muscle superficial to the femoral artery

A

sartorius

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14
Q

order of appearance of adductor muscles

A

AL AB AM a

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15
Q

Saphenous nerve location. muscular landmark

A

deep to sartorius
superficial to gracilis

S
N
G

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16
Q

what comprises triangle of sciatic nerve

A

semimembranosus medial, sciatic lateral are the base… apex is the conjoined tendon of BF and ST

17
Q

Between which muscles can you find the obturator nerve?

A

adductor muscles

18
Q

Gracilis muscle orientation relative to adductors?

A

superficial and more medial to adductors

19
Q

Differentiate ortolani from Barlows

A

barlow- dislocate using adduction and posteriorly directed force,
Ortolani - relocation using abduction and anteriorly directed force

20
Q

Name landmarks for DDH scan and typical appearance

A

egg on spoon, Ilium, acetabulum= alpha angle. should be >60. ilium and labrum angle = beta angle should be <55 degrees

21
Q

Criteria for joint distention/effusion in kids and adults in hip

A

2mm A-P separation - pedia

Adult= 7mm distention. or 1mm asymmetry between contralateral

22
Q

What hip position improves visualziation of hip effusion

A

leg extension and abduction

23
Q

What happens with a large body habitus to echogenicity of fluid

A

can cause anechoic fluid to appear ARTIFICALLY Hypoechoic or ISOechoic

24
Q

Causes of synovial hypertrophy

A

Infection, inflammatory arthritis, PVNS,osteochondromatosis ( with hyperechoic calcifications)

25
Q

Differentiate labral degeneration from tear

A

degeneration - diffuse hypoechogenicity,

tear-defined hypoechoic or anechoic cleft

26
Q

Dynamic evaluation fo femoroacetabular impingement and tx?

A

hip flexion and internal rotation- direct contact between labral tear and cortical irregularity– osteoplasty

27
Q

Is the hypoechogenicity superior to a arthroplaty prosthesis normal?

A

yes

28
Q

What is a thigh splint?

A

adductor insertion avulsion syndrome from chronic repetitive stress injury, WOF periostitis or possible stress fracture?

29
Q

Where is the insertion of the adductor longus

A

posteromedial femur

30
Q

Differentiate benign enlargement lymph node from malignant

A

benign- maintained oval shape, hyperechoic hilum. Malignant- ROUND, absence or narrowed hilum, thickening of cortex

31
Q

Role of US in sarcoma?

A

to monitor for recurrence.

32
Q

Benign differentials of a palpable mass - msk related

A

pseudohypertrophy of TFL, chronic retracted tenon or muscle tear

33
Q

If unstable hips when to do US exam?

A

younger than 2 weeks

34
Q

If stable hips when to do US

A

4-6 weeks if there is stable click

35
Q

if normal PE, but with risk factors when to scan

A

4-6 weeks

36
Q

Angulation criteria for DDH

A

Alpha- <60 Beta >77

Hip Ultrasound (1 decks)

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