Congenital muscular torticollis

Definition

 

Twisted neck secondary to sternocleidomastoid (SCM) fibrosis and shortening

 

Etiology

 

? Packaging defect from in utero ischemia - breech position / oligohydraminos

? Birth trauma

 

Associations - developmental dysplasia of the hip (20%)

 

Clinically

 

Head tilted to one side so ear approaches shoulder / Head turned towards other shoulder

Associated with craniofacial asymetry

May have mass / lump in SCM

 

Torticollis

From: Li et al J Orthop Surg Res 2024

 

Differential diagnosis

 

Congenital vertebral anomaly - Klippel Feil, C1-2 fusion, unilateral C1 deficiency

Ocular causes - strabismus / nystagmus

Sandifer syndrome - paroxysmal movements associated with reflux

 

Imaging 

 

Exclude congenital vertebral anomaly / only indicated in refractory presentations

 

Nonoperative management

 

Stretching exercises

 

Passive stretching exercises

- lateral head bend away from affected side

- head rotation towards affected side

 

Carenzio et al Eur J Phys Rehab Med 2015

- 50 infants mean age 10 weeks treated with physiotherapy

- 49/50 resolved at mean of 80 days

 

Petronic et al Eur J Phys Rehab Med 2010

- 980 infants with CMT

- best results and fastest resolution with treatment beginning < 1 month old

 

Botox

 

Qiu et al J Craniofacial Surg 2020

- systematic review of botox injections in torticollis

- 84% success rate

- 1% complication (injection site erythema, transient dysphagia)

 

Operative management

 

Indication

 

Torticollis > 1 year age

> 30o limitation of movement

 

Options

 

Open release

Endoscopic release

 

Results

 

Endoscopic

 

Li et al J Orthop Surg Res 2024

- endoscopic release in 72 children

- mean age 4 years

- 97% good results

 

Timing

 

Choi et al Arch Plast Surg 2024

- 210 patients with surgical release

- best results < 3 years old

Neglected torticollis

 

Kim et al Plastic Recon Surg 2015

- systematic review of release of 220 neglected torticollis

- 80% good results

- no difference outcome patient < 15 versus > 15

 

Open technique

 

Distal release +/- proximal release if needed

 

Distal release 

- 5cm transverse incision 1cm above medial end clavicle

- open tendon sheath and expose sternal and clavicular tendons

 

Proximal release

- incision immediately behind and below ear

- divide SCM just distal to tip of mastoid process

- spinal accessory nerve at risk

 

Post operative - continue stretching exercises