Vascular/Mechanical Dysfunction

Question 1

DDH - what is it?
What happens?
What is affected?

Answer 1

Developmental Dysplasia of the Hip
Femoral head + acetabulum lack pressure for proper gestational development
Acetabulum shallow/flat
Femoral head subluxes

Question 2

Five F’s of DDH

Answer 2

Female
First Born
Family History
Frank Breech
Foot Deformities

Question 3

Other DDH associations

Answer 3

torticollis, metatarsus adductus, calcaneovalgus foot deformity

Question 4

Diagnosis of DDH

Ortolani

Answer 4

Reduce the hip (knee out)

Question 5

Diagnosis of DDH

Barlow

Answer 5

Sublux the hip (knee up, hip down)

Question 6

Diagnosis of DDH

Galeazzi

Answer 6

knee height difference

Question 7

Treatment of DDH

Answer 7

Infancy: Pavlik Harness
Child: open/closed reduction
Adult: hip replacement

Question 8

Legg-Calva-Perthes

Answer 8

idiopathic avascular necrosis of he femoral head

Question 9

Who gets LCP?

Answer 9

M>F 5:1
age 4-10
Caucasian

Question 10

Slipped Capital Femoral Epiphysis

Answer 10

displacement of proximal femoral metaphysis through the growth plate (femoral head stays in place!)

Question 11

Who gets SCFE?

Answer 11

M>F 2.5:1,
age 10-14/16,
50% >95%weight,
Hispanic, AA, low SES

Question 12

What causes SCFE?

Answer 12

Trauma?
Endocrine: 
- abnormalities
- growth spurt
- GH/sex hormone abnormality

Question 13

Categories of SCFE

Answer 13

Stable: able to amb w/crutches
Unstable: unable to amb
Acute:

Question 14

Worst Case outcome of SCFE

Answer 14

Lack of blood supply (medial circumflex artery, retinacular) –> avascular necrosis, head collapse –> early joint replacement