Hip Conditions

Question 1

AVN of the Femoral Head
MC found in boys 4-9 yo +/-
Radiographic Signs:
- Fragmentation of Femoral Head (crescent sign)
- Flattening of Femoral Head
- Increased white density of Femoral Head (snow capped)
- Increased joint space

Answer 1

Legg Calve Perthe’s

Question 2

What appearance does Legg Calve Perthe’s have?

Answer 2

Mushroom Capped Appearance

Question 3

Management of Legg Calve Perthe’s

Answer 3

Refer to orthopedist for an “A” brace

Question 4

Salter Harris Type I Fracture
Boys 10-16 yo +/-
- Femoral head slides inferior and medial
- Femoral neck slides superior and lateral

Answer 4

Slipped Capital Femoral Epiphysis

Question 5

Lines of Mensuration used to diagnose Slipped Capital Femoral Epiphysis?

Answer 5

Klein’s, Shenton’s & Skinner’s

Question 6

Management for Slipped Capital Femoral Epiphysis

Answer 6

Refer to orthopedist

Question 7

Putti’s Triad:

• Hypolastic femoral head
• Shallow acetabular shelf
• Femoral head outside of acetabulum

Answer 7

Congenital Hip Dysplasia

Question 8

What are the ortho’s for Congenital Hip Dysplasia?

Answer 8

• Telescoping
• Ortolani’s
• Barlow’s
• Allis’

Question 9

Axial migration of femoral head with uniform loss of joint space

• B/L most often occurs with RA
• Also seen with Osteoporosis, Osteomalacia, Paget’s, Trauma and Idiopathic
• Obliteration of Kohler’s teardrop

Answer 9

Protrusio Acetabuli

Question 10

Lines of Mensuration to dx Protrusio Acetabuli?

Answer 10

Kohler’s Line