Orthopaedic Assessment and Intervention in infancy Flashcards
what percentage of births have major congenital disorder
2-3%
what is congenital muscular torticollis
latin for twisted neck
clinical sign of asymmetric neck posture - could be a result of multiple underlying disorder
how does congenital muscular torticollis typically present itself
presents with head tilted to one side and
rotated to the other
what are the three types of congenital muscular torticollis (CMT)
- Sternomastoid tumour (SMT)
- Muscular torticollis (MT)
- Postural Torticollis (PT)
Describe sternomastoid tumour
a type of congenital muscular torticollis
shortening of the SCM muscle due to a fibrotic mass
Describe Muscular torticollis
a type of Congenital muscular torticollis
shortening of the SCM
muscle but without a fibrotic mass
causes unilateral contracture of SCM muscle
Describe Postural Torticollis
a type of Congenital muscular torticollis
asymmetry of neck ROM,
following persistent positional preference of the head
what are the causes of SMT
true aetiology unknown
now thought to be damage of shortening of SCM due to intrauterine positioning/constraint - leads to venous occlusion
what is the typical presentation of SMT
palpable mass
develops around 2-3wks and resolves from ~4 months
size can range from less than 1cm to 4cm in diameter
contracture of SCM muscle causes neck to tilt to same side and rotate opposite side
describe rate of incidence of SMT
Incidence 0.4 - 3.9% of new-borns
3M:2F
What is muscular torticollis
results from the resolution of SCM mass after around 4/12
a non-contractile band of muscle is present
what would be observed in an objective assessment of a patient with muscular toticollis
non contractile band of muscle => shorterning and thickening of muscle on palpation
limited ROM
What is postural Torticollis
mildest form of CMT
a positional preference
what can cause postural torticollis
Can develop secondary weakness/tightness due to asymmetrical use and positional preference
this positional head preference develops near end of pregnancy
usually prefer R>L
Neonates don’t have enough head control to turn head so head preference persists
what would be observed in an objective assessment of a patient with postural torticollis
No morphological changes to SCM and full/almost full passive ROM CSp, but asymmetrical active CSp ROM
describe rate of incidence of postural torticollis in new borns
Incidence 16% of new-borns
what can be a by-product of postural torticollis
Babies’ skulls are soft, so this head preference can
lead to flattening of the skull on one side
(plagiocephaly) before or after birth
what is the origin of the word plagiocephaly
oblique head - greek
what is plagiocephaly
it is the flattening of the skull on one side before or after birth
what types of positional plagiocephaly
Occipital flattening
Ipsilateral ear pushed forward
Ipsilateral forehead bossing
Ipsilateral fuller cheek and eye
Parallelogram shape
what is plagiocephaly associated with
intrauterine constraint
and prematurity
whay percentage of the brain is at adult volume once at birth, by 2 years old and by 5 years old
25% adult volume at birth
77% adult volume at 2 years old
90% adult volume at 5
what are sutures of the skull
fibrous bands of tissues, that connect the bones of the cranium, and meet at the fontanelles
why are the sutures of the skull fibrous
Being fibrous allows for some movement of
the bones of the skull (this enables an infant’s
skull to pass more easily through the birth canal and also allows for rapid brain growth
describe rate of incidence of plagiocephaly
38% of healthy full-term babies
what equipment can influence plagiocephaly
changes in
baby equipment / handling
what may be discovered in an infant with plagiocephaly during an objective assessment
No morphological changes to neck muscles
* But can develop secondary weakness/
tightness due to asymmetrical use
* This leads to further positional preference
of the head
craniosynostosis
a congenital anomaly with premature closure of one or more sutures between cranial bones
what are the possible consequences of craniosynostosis
It has the potential for negative neurologic and cognitive effects
what is the rate of incidence of craniosynostosis
6 per 10,000 births