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Clinical Protocol Summary CMT · 2024 CPG · Rev. 01
Physical Therapy Management

Congenital Muscular Torticollis: the care protocol.

An operational synthesis of the 17 recommendations of the 2024 clinical practice guideline from the APTA Academy of Pediatric Physical Therapy, organized as a care pathway: examination, classification, intervention, escalation and discharge.

17
Clinical recommendations (Action Statements)
5
Components of the first-choice intervention
5
Objective criteria for discontinuation

Support material for physical therapists, rehabilitation coordinators and clinical protocol committees.

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TECHNICAL DOCUMENT FOR PEDIATRIC PHYSICAL THERAPY SERVICES SCIENTIFIC BASIS: 2024 CMT CPG — APTA ACADEMY OF PEDIATRIC PHYSICAL THERAPY
Scope of this document

The episode of care, from referral to discharge

This summary covers the physical therapy management of congenital muscular torticollis (CMT) in infants, per the 2024 guideline. It does not replace reading the full guideline or individual clinical judgment: the parameters below are practice guidelines, not mandates.

How to read the recommendation grades
A
Strong
A preponderance of level I studies, with at least one level I study directly on the topic
B
Moderate
A preponderance of level II studies, with at least one level II study directly on the topic
C
Weak
A single low-scoring level II study, or a preponderance of level III and IV studies
P
Best practice
Current clinical practice norms or guideline development group consensus, with clear benefit

Overview

The episode of care, step by step

Operational sequence of the care pathway, with the corresponding guideline recommendations.

1
Step 1
History and systems review
Document medical and developmental history and review the neurological, musculoskeletal, integumentary, cardiopulmonary and gastrointestinal systems to rule out non-muscular causes.
Action Statements 4 and 5
2
Step 2
Examination of body structures
Measure passive and active range of motion, cervical functional strength, pain, skin integrity, SCM characteristics and craniofacial asymmetry using standardized tools.
Action Statements 7 and 8
3
Step 3
Classification and prognosis
Assign one of the 8 grades of the CMT Severity Grading Scale and determine the prognosis for resolution and the estimated episode of care, communicating both to the family.
Action Statements 9 and 12
4
Step 4
First-choice intervention
Deliver the 5 components of the first-choice intervention, with a guided home program and objective reassessment at every session.
Action Statement 13
5
Step 5
Escalation when indicated
Reassess intensity and frequency; consider evidence-informed supplemental interventions and initiate medical consultation when progress falls short of expectations.
Action Statements 14 and 15
6
Step 6
Discontinuation and reassessment
Discontinue direct services once the 5 objective criteria are met, and reassess between 3 and 12 months, or when the child begins walking.
Action Statements 16 and 17

Steps 1 and 2 — Initial examination

What must be documented

The guideline specifies the minimum elements of the record. Standardizing these fields allows progress to be compared across clinicians and service outcomes to be audited.

Health history — 6 factors

  1. 01Chronological and corrected age at examination
  2. 02Age of onset of symptoms
  3. 03Pregnancy and birth history
  4. 04Head posture and positional preference
  5. 05Other known or suspected medical conditions
  6. 06Developmental milestones

Body structures — 7 domains

  1. 01Posture and tolerance in supine, prone, sitting and standing
  2. 02Bilateral passive cervical rotation and lateral flexion
  3. 03Active cervical range of motion and lateral flexion functional strength
  4. 04Trunk and limb range of motion, including screening for hip dysplasia
  5. 05Pain or discomfort at rest and during movement
  6. 06Skin, cervical folds and SCM muscle characteristics
  7. 07Craniofacial asymmetries and head shape

Reference values and tools

Normal passive cervical rotation110° ± 6,2°
Normal passive cervical lateral flexion70° ± 2,4°
Range of motion measurementArthrodial protractor, goniometer or digital goniometer †
Lateral flexion strengthMuscle Function Scale (from 2 months)
PainEscala FLACC
Head shapeArgenta Classification or a quantitative method (3D scanning †)
Motor developmentTIMP, AIMS, PDMS-3

† Insertion by the authors of this protocol. The 2024 CMT CPG specifies an arthrodial protractor or goniometer for range-of-motion measurement, and lists three-dimensional computerized scanning among the alternative quantitative methods for head shape, without specifying equipment or manufacturer.

Step 1 — Patient safety

Findings that require medical consultation or referral

Up to 18% of head and neck asymmetries have a non-muscular cause. Any of the findings below indicates consultation with the primary care provider or a specialist before proceeding, or alongside intervention.

  • 01Signs of non-muscular causes: poor visual tracking, spinal conditions, abnormal muscle tone, extra-muscular masses or gastroesophageal reflux
  • 02Presentation atypical of CMT: lateral flexion and rotation to the same side, or torticollis that alternates sides
  • 03Changes in the infant's color during screening of passive range of motion
  • 04Acute-onset torticollis, usually associated with trauma or acute illness
  • 05Late-onset torticollis at 6 months or older
  • 06An SCM mass at 6 months or older, or a mass that changes shape or location or grows at any age
  • 07Child older than 12 months with facial asymmetry and/or a 10° to 15° difference in cervical range of motion
  • 08Conditions requiring caution with stretching: skeletal dysplasia, osteogenesis imperfecta or atlantoaxial instability

Step 3 — Classification

CMT Severity Grading Scale (8 grades)

Classification combines three objective factors: age at the physical therapy examination, the difference in passive cervical rotation between sides, and the presence of an SCM mass. It informs prognosis and the estimated episode of care.

GRAU 1
Early mild
0–6 months · difference < 15°
GRAU 2
Early moderate
0–6 months · difference 15–30°
GRAU 3
Early severe
0–6 months · difference > 30° or SCM mass
GRAU 4
Later mild
7–9 months · difference < 15°
GRAU 5
Later moderate
10–12 months · difference < 15°
GRAU 6
Later severe
7–9 mo: difference > 15° · 10–12 mo: 15–30°
GRAU 7
Later extreme
7–12 mo with SCM mass, or 10–12 mo with difference > 30°
GRAU 8
Very late
> 12 months · any asymmetry
Low complexity Moderate complexity High complexity Specialist referral
Observed duration by grade

In a case series cited by the guideline, average treatment duration increased progressively from Grade 1 to Grade 3 (approximately 3, 5 and 6 months respectively), with an average of just over one visit per month — a different visit frequency may change these durations.


Step 4 — Action Statement 13

First-choice intervention: 5 components

All five components should be provided and documented. Passive cervical stretching, when range of motion is limited, is the only component carrying a grade A (strong) recommendation.

01Passive cervical range of motion, when limited
GRADE A · STRONG

Low-intensity, sustained, pain-free stretching. Stop if the infant resists or if breathing or circulation appear to change. Stabilize the head and shoulders to prevent compensations.

02Active cervical and trunk range of motion
GRADE B · MODERATE

Elicit active movement through visual and auditory tracking, positioning, handling, carrying and feeding, strengthening the muscles opposite the affected side.

03Development of symmetrical movement
GRADE B · MODERATE

Incorporate developmental exercises in weight-bearing postures to prevent asymmetrical patterns in prone, sitting, crawling and walking.

04Environmental adaptations
GRADE B · MODERATE

Alternate positioning in the crib and on the changing table and the placement of toys; minimize time in equipment that rests the head against a surface, such as car seats, strollers and swings.

05Parent and caregiver education
GRADE B · MODERATE

Teach supervised tummy time, symmetrical positioning and handling, alternating sides during feeding, and warning signs; tailor home program intensity to the family's capacity.

On dosage

The guideline is intentionally vague about dosage: it recommends frequent stretching throughout the day, every day, but sets no standard linking technique, duration, repetitions or visit frequency to severity grades. One cited algorithm suggests weekly to biweekly visits for infants up to 3 months with Grade 1, and 1 to 3 times per week for older or more severe cases.


Step 5 — Action Statement 14

Supplemental interventions, by strength of evidence

These are adjuncts, never substitutes for the first-choice intervention. Indicated when the first-choice intervention has not sufficiently improved range or alignment, when access to services is limited, or when the infant cannot tolerate the proposed intensity — and only if the clinician has specific training.

InterventionEvidenceSummary
● MicrocurrentNível I–IISmall trials associate shorter treatment duration and range-of-motion gains when added to physical therapy.
● Soft tissue mobilizationNível I–IIImproved passive rotation and head tilt at 6 weeks, without a sustained difference at 12 and 18 weeks.
● Traditional Chinese medicine massageNível I–IIEffects similar to stretching; available studies carry a high risk of bias and higher-quality research is needed.
◐ Myokinetic stretching; neural and visceral manipulationNível IIImprovement reported in cohorts, without efficacy established in controlled trials.
◐ TOT collar, soft foam collars, custom cervical orthoses, TAMONível IVDescribed only in case reports and case series.
◐ Kinesiology tapingIndeterminateAn immediate effect on lateral flexion strength has been reported, but a randomized trial showed no added value over exercise at 3 weeks.
○ Cervical manipulationNot recommendedInsufficient evidence of benefit in infants and associated with risk of apnea and serious outcomes; the guideline does not recommend it.
○ Craniosacral therapy, Total Motion Release, FeldenkraisNo published evidenceNo peer-reviewed studies describing application, efficacy or risks in CMT.

Step 5 — Action Statement 15

When to escalate care

The guideline directs clinicians to initiate consultation with the primary care provider or a specialist when progress falls short of expectations, keeping the decision anchored in documented objective measures.

4–6 weeks
No resolution beginning

Head, neck and trunk asymmetries that are not starting to resolve after comprehensive intervention. Infants younger than 2 months, who typically change more quickly, should be referred sooner than older infants.

6 months
Plateau in progress

Lack of progression after 6 months of consistent, intensive intervention indicates consultation to consider additional approaches.

>12 months
Late initial presentation

A child starting intervention after 1 year of age with significant restriction and/or an SCM mass warrants shared decision-making with the family and the referring provider.

Botulinum toxin

Off-label in infants, with a growing body of support for cases refractory to at least 3 months of physical therapy. A meta-analysis reports an 84% effective rate combined with physical therapy, a 9% conversion rate to surgery and a 1% adverse reaction rate.

Surgical management

The traditional alternative for recalcitrant cases. Reported criteria include persistent limitation greater than 15°, a residual tight band or mass, persistent visible head tilt, no response after 6 months of physical therapy, and reaching 1 year of age without resolution.


Step 6 — Action Statements 16 and 17

Discontinuation criteria and reassessment

Discontinuation of direct services requires all five criteria simultaneously. Discharge occurs later, at reassessment, if there is no recurrence and no developmental concern.

1

Passive cervical range of motion within 5° of the non-affected side

2

Symmetrical active movement patterns

3

Age-appropriate motor development

4

No visible head tilt

5

Parents and caregivers understand what to monitor as the child grows

Reassessment after discontinuation

Complete a full evaluation between 3 and 12 months after discontinuation of direct services, when the child begins walking, or whenever the family or primary care provider observes asymmetrical posture. Educate the family about signs of returning asymmetry and inform the primary care provider of the discontinuation and follow-up plan.


Implementation support

Objective documentation across the episode of care

The guideline attributes the reduced treatment duration observed in an implementation study to taking measurements at every visit: measuring frequently allows the intervention to be adjusted and supports family adherence. Standardized records also make outcome auditing possible.

Measurement at every session

Cervical range of motion recorded in a standardized way, allowing values to be compared over time and across clinicians.

Documented classification

Severity grade and prognosis recorded at the initial evaluation and revisited at reassessments.

Report to the physician

Communication of progress, discontinuation and the reassessment plan to the primary care provider.

Service auditing

Average age at first examination, time to intervention and resolution rate as institutional indicators.

The Baby Symmetry Platform, by BS3D, centralizes these records — range-of-motion measurements with GonioBaby and cranial asymmetry reports from 3D scanning — in a single history per patient.

Documentation support tool · does not replace clinical judgment
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Transparency note

This is an operational summary drawn from the 2024 CMT CPG and does not replace reading the full guideline, freely available on the APTA Academy of Pediatric Physical Therapy website. The parameters gathered here are practice recommendations, not legal standards of care.

The guideline references generic measurement instruments and does not cite or evaluate GonioBaby, the BS3D mount or the Baby Symmetry Platform. Adoption of any specific digital tool should follow the institution's usual evaluation process.