Pediatric Registry- HIP

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Children

In what pediatric age group does transient synovitis most commonly occur?

Family history, female, first born, oligohydramnios

Name 4 risk factors for congenital hip dysplasia (DDH)?

60 degrees

The alpha angle is considered normal when it is greater than or equal to:

Acetabulum

The alpha angle is formed by the ilium and the:

Labrum

The beta angle is the angle between the ilium and the:

Pubis, Ilium, Ischium

What 3 bones make up the acetabulum?

Visualization of ossified femoral head

What advantage does radiography offer over ultrasound for evaluation of a 9 month old for hip dysplasia?

Proximal focal femoral deficiency (PFFD)

What congenital abnormality is usually characterized by a unilateral short lower extremity?

Triradiate cartilage

What hypoechoic structure lies centrally within the acetabulum on a transverse view of the infant hip joint?

12 MHz

What is the best transducer for evaluation of the hip joint?

Ortolani

What is the maneuver performed during a physical exam involving a 90 degree flexion and frog-leg abduction of the hip?

Pulvinar

What is the name of the fibrofatty tissue that fills the space between the abnormal acetabulum and the femoral head?

Pavlik

What is the name of the harness used for treating DDH?

Barlow

What is the name of the maneuver where the infant hip is flexed, adducted, and pushed posteriorly?

Swelling

What is the one clinical sign that could help differentiate transient synovitis from osteomyelitis?

Iliopsoas

What muscle lies immediately anteromedial to the hip capsule?

Coronal

Which scanning plane is used to evaluate and measure for developmental dysplasia of the hip? (DDH)

Graf

Who discovered the first method and technique for measuring hip dysplasia?

Hip effusion

A 5 year old comes into the ER with hip pain, fever, and limping. What is the most likely diagnosis?

Type II

According to the Graf classification, what Type is the alpha angle range of 43-59 degrees?

Type I

According to the Graf classification, what Type is the normal alpha angle of equal to or greater than 60 degrees?

50%

Femoral head coverage should be at least:

Hypoechoic

Compared to bone, the infant femoral head is cartilaginous and:

Acetabulum and femur

Developmental dysplasia of the hip (DDH) is the abnormal development of the:

Anterior

Identify the scan plane used when you suspect hip effusion:

Avascular necrosis (avn)

If a hip joint is not correctly positioned in a harness during treatment, the most severe complication would be:

Supine

Imaging of an infant for developmental dysplasia of the hip (DDH) should be done with the patient in primarily what position?

12

The exam to detect developmental dysplasia of the hip should be performed prior to how many weeks of age?

Flexed and abducted

The harness used to treat DDH holds the legs in what position?


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