Fetal Musculosketal system Flashcards
shortening of proximal extremity (humorous & femur)
Rhizomelia
shortening of distal extremity (radius, ulna,tib,fib)
mesomelia
shortening of prob and distal :dwarfism
Miromelia
extra digits
Polydactyl
fusion of digits
Syndactyl
curvature of digits ; clenched hands associated with trisomy 18
Clinodactyl
- M/C lethal dysplasia
- Extreme rhizomelia
- Hypoplastic thorax (narrow)
- Bowed limbs
- Cloverleaf skull
- POLY
Thanatophoric dysplasia
- 2nd M/C lethal
- Severe short limbed dwarfism
- Lack of vertebral ossification
- Large head w/ decreased cranium ossification
Achondrogenesi
- Only type II is lethal
- Fractured bones
- Poor skull ossification; compressible skull
Osteogenesis Imperfecta Type 11 (01)
- Bony demineralization
* Short bowed poorly ossified extremities, spine and head
Congenital hypophsphatasia
- M/C non lethal genetic skeletal dysplasia
- Rhizomelia
- Bowed bones
Heterozygous Achondroplasia
- Can be genetic or environmental
- Foot is in same plane w/ Tib/ Fib
- Can be isolated or assoc. with chromosomal abnormalities
Clubfoot deformity
Convexes outward
Assoc. w/ Trisomy 13
rocker bottom foot
- Lower extremity fusion
* Oligo
sirenmelia (mermaid syndrome)
Assoc. w/ maternal diabetes
Multiple skeletal anomalies
Assoc. anomalies of the GI, GU tracts, CNS and Heart
Caudal regression syndrome