SONO232 - Week 11 Neonatal Hip Ultrasound
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
