pediatric MSK conditions Flashcards
(20 cards)
long bones grow by
endochondral ossification
flat bones grow by
intramembranous ossification
when born your legs are in
varus
valgus peaks around age
4
blounts disease
progressive genu varum
genu vacuum must be corrected by age
4 to prevent permanent growth arrest
adolescent Blount demographics
obese
African American males
6% of _______ patients develop embryonal (wilms tumor)
hemihypertrophy
Most common skeletal dysplasia
achondroplasia
inheritance of achondroplasia
Auto dominant (single gene in FGF3
zone affected in achondroplasia
proliferative zone
Pseudoachondroplasia
Similar to achondroplasia, but normal facial features
Cleidocranial Dysostosis
proportional, mild dwarfism with absent clavicles
most common long bone deficiency
fibular (hemimelia)
clubfoot
- Hindfoot varus and equinus
- Mid and forefoot adductus and cavus
dorsal dislocation of navicular on talus
congenital vertical talus (rocker bottom foot)
pediatric hip disorders
- Legg-Calve-Perthes
- Developmental Dysplasia of the Hip (DDH)
- Slipped Capital Femoral Epiphysis
- Congenital Coxa Vara
Evolving areas of avascular necrosis within the femoral head
Legg Calve Perthes disease
most common pediatric hip disorder
developmental dysplasia of the hip DDH
DDH
- Spectrum from complete, irreducible dislocation to mild acetabular dysplasia
- neck displaces anteriorly and superiorly relative to the epiphysis
