Congenital Muscular Torticollis Flashcards
CMT
Unilateral shortening of SCM
What is the position of baby’s head with CMT
Lateral tilt toward affected side and rotation away from affected
How common is CMT?
Third most common after hip dislocation and clubfoot
What can CMT be associated with?
Cranial deformation (plagiocephaly)
What could CMT be a result of?
Mechanical forces occurring pre- or postnatally
Cranial Deformation
– flat on one side
Plagiocephaly
Cranial Deformation
– flat on back of the head
Brachyephaly
Cranial Deformation
– head is longer
Scaphocephaly
When does the posterior fontanelle close?
Age 1 to 2 months
When does the anterior fontanelle close?
Age 7 to 19 months
Etiology and Pathophysiology
Prenatal factors
Perinatal factors
Associated postnatal factors
Etiology and pathophysiology
- prenatal factors
Ischemic injury on abnormal vascular patterns or head position in utero
Intrauterine crowding or persistent malpositioning
Rupture of the muscle
Infective myositis
Hereditary factors
Etiology and pathophysiology
- perinatal factors
Birth trauma from breech presentations
Associated deliveries
Etiology and pathophysiology
- associated postnatal factors
Presence of hip dysplasia
Positional preference
Presence of deformational plagiocephaly
Subjective Exam
Age at the initial visit
Age of onset of symptoms
Pregnancy history
Delivery history
Use of assistance during delivery
Head posture/preference
Family Hx
Developmental milestones
Other known or suspected medical conditions