Perthes Flashcards
1
Q
What is Perthes?
A
- Avascular necrosis of the head of the femur due to tenuous blood supply in 4-10 year olds
2
Q
Who gets Perthes?
A
4-10 year olds
3
Q
What causes Perthes?
A
- Idiopathic
- Secondary to slipped capital femoral epiphysis, trauma, steroid use, sickle cell, toxic synovitis
4
Q
How does Perthes present?
A
Insidious onset of intermittent pain in the anterior thigh and painless limp, particularly after exertion
Quadriceps atrophy, adductor flexion contracture, Trendellenburg gait
5
Q
How is Perthes investigated?
A
- ESR
- Hip x-ray
6
Q
How is Perthes managed?
A
- Preserve range of motion
- Avoid weight bearing
- Femoral osteotomy
