Disease

      Age

Male/Female

 Bilaterality

Race

Best Film

Other

Congenital Hip Dysplasia

      Birth

  5-9x more common in females

10x more common if breech

     1/3

Almost never in Blacks

AP—not frog

ORTALANI
CLICK—

with leg flexed, dislocate by adduction, click on relocation with abduction

Slipped Capital Femoral Epiphysis

Teenagers 12-15

Heavy or tall

Younger in girls (8-15)

Boys>girls

June-September

most often

1/4

Blacks more often

AP

Avascular necrosis in

6-15%

Legg- Calve- Perthe’s Disease

~5 years

Male>

females

1/10

Bilateral in females is rare

None

Frog lateral-for subarticular lucency

Arthrography usually neg

Better prognosis under 5

Synovitis may be 1st sign