SONO232 - Week 11 Neonatal Hip Ultrasound

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Baby's leg toward the body

Adduction

Barlow maneuver

Adduction of hip while pushing against knee, backward pressure

Graf Type 3

Subluxtation alpha under 50

Where is acetabular labrum located?

Superolateral aspect of femoral head

Indications for hip dysplasia

clunky/clicky hip limited abduction asymmetrical creases foot deformities breech oligo neuromuscular conditions

Graf type 4

dislocated

What are physiological issues of developmental hip dysplasia due to?

maternal hormones

Femur ossifys at

2-8 months of age

Hip ultrasound occurs at what age

4-6wks

Graf Type 2

50-60 degrees

Ultrasound most accurate after

6 wks

What are mechanical issues of developmental hip dysplasia due to?

position

What muscles flex the hip?

psoas major, iliacus and rectus femoris muscles.

Ortolani maneuver

Abducting while pulling hip anterior, forward pressure

Alpha angle

Acetabular roof vertical to the cortex of illium, should be greater than 60 degrees

Subluxation

Femoral head displaces laterally, partial dislocation

Graf Type 1

Normal alpha angle of 60 or more

Indications

Oligo Breech Females Family hx

What maneuver gives the flower appearance?

Transverse with neutral position of hip

Appearance of flower

Trv with neutral position

What ligament extends from the ileum to femor in front of the hip joint?

Ulliofemoral ligament aka Bigelow

Beta Angle

Vertical cortex of ilium and triangular labral fibrocartilage

Highest risk for DDH

frank breech

Developmental Dysplasia of Hip

general instability or looseness of the hip joint Abnormal condition that results in hip displasia. Dysplastic, subluxated, dislocatable, and dislocated.

What creates the coaxal bone (hip bone)

ilium, ischium, and pubis


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