Congenital torticollis

Neck deformity that involves shortening of the sternocleidomastoid (SCM) muscle resulting in limited neck rotation and lateral flexion.

Infants tilt their head toward the side of the shortened muscle and rotate to the contralateral side.

Plagiocephaly and craniofacial deformities can be associated with congenital muscular torticollis (CMT) and can perpetuate one another.

Developmental hip dysplasia can be associated with CMT.

It is important to rule out nonmuscular causes such as ocular, vertebral, and neurologic.

Treatment includes caregiver education on positioning and physical therapy; onabotulinumtoxinA injections or surgery are reserved for recalcitrant cases.

Congenital muscular torticollis (CMT) is a neck deformity that involves shortening of the sternocleidomastoid (SCM) muscle resulting in limited neck rotation and lateral flexion. This results in a head tilt to the affected side and rotation to the contralateral side.