This browser is too old to run Achievable.

Update it, or open this page in a current version of Chrome, Safari, Firefox or Edge. On an iPhone or iPad, update iOS: every browser there runs on the version of Safari that comes with it.

Achievable logoAchievable logo
NPTE-PTA
Sign in
Sign up
Purchase
Textbook
Practice exams
Support
How it works
Resources
Exam catalog
Mountain with a flag at the peak
Textbook
Introduction
1. Cardiovascular system
2. Pulmonary system
3. Neuromuscular system
4. Pediatrics
4.1 Pediatric foundations
4.2 Congenital disorders
4.3 Developmental and acquired disorders
4.3.1 Hip and knee conditions
4.3.2 Scoliosis, autism, and birth injuries
5. Musculoskeletal system
6. Other systems
7. Non-systems
Wrapping up
Achievable logoAchievable logo
4.3.2 Scoliosis, autism, and birth injuries
Achievable NPTE-PTA
4. Pediatrics
4.3. Developmental and acquired disorders
Our NPTE-PTA course is now in "early access" - get 50% off for a limited time.

Scoliosis, autism, and birth injuries

8 min read
Font
Discuss
Share
Feedback

These pediatric conditions affect the spine, development, and the infant at birth; as with the hip and knee conditions, the PTA carries out the plan of care established by the supervising PT.

Scoliosis

Scoliosis
Scoliosis
BruceBlaus, Blausen.com staff (2014). "Medical gallery of Blausen Medical 2014". WikiJournal of Medicine 1 (2). DOI:10.15347/wjm/2014.010. ISSN 2002-4436
/
Wikimedia Commons
/
CC BY 3.0
Definitions
Scoliosis
A lateral (side-to-side) curvature of the spine, usually with vertebral rotation, which may develop due to cerebral palsy, muscular dystrophy, birth defects, trauma, infections of the spine, or idiopathic causes.

Most idiopathic cases are diagnosed during adolescence via physical examination and X-ray imaging. The severity of scoliosis is defined by the degree of curve - this also guides which interventions may be performed.

Cobb angle (severity of scoliosis)

  • Mild scoliosis: Cobb angle of 10 to 20 degrees (a curve under 10 degrees is not considered scoliosis)
    • No intervention or conservative management
  • Moderate scoliosis: Cobb angle between 20 and 40 degrees
    • Bracing and physical therapy may be indicated
  • Severe scoliosis: Cobb angle greater than 40 degrees
    • Surgical intervention is generally recommended once the curve exceeds about 45-50 degrees; curves of 40-45 degrees in a still-growing child may still be braced; large curves, generally greater than 50 degrees, can begin to compromise the respiratory system

A younger age or a lower Risser sign (the most common radiographic marker of skeletal maturity) means more spinal growth remains and a greater chance of curve progression, so a growing child with a curve of about 25 to 40 degrees is a candidate for bracing.

Symptoms

  • Uneven shoulders
  • One shoulder blade that appears more prominent than the other
  • Uneven waist
  • One hip is higher than the other
  • One side of the rib cage jutting forward

Physical therapy interventions for scoliosis

  • Address muscle imbalances that may be present due to curvature, per the plan of care
  • For functional scoliosis caused by leg-length discrepancy, apply and reinforce use of prescribed shoe inserts
  • Reinforce the prescribed bracing wear schedule (e.g., TLSO/Boston brace) and scoliosis-specific exercises per the plan of care
  • Reinforce use of prescribed durable medical equipment, monitor breathing in large curves, and report changes in fit, tolerance, or respiratory status to the supervising PT
  • Inspect the skin under the brace for redness or breakdown, and report it to the supervising PT

Autism spectrum disorder

Definitions
Autism spectrum disorder
A neurodevelopmental disorder defined by persistent difficulties in social communication and interaction plus restricted, repetitive patterns of behavior, interests, or activities; motor delays, coordination deficits, and atypical play are commonly associated.

Etiology is unknown, but there is a strong genetic predisposition, along with some prenatal or perinatal environmental factors that may contribute. Diagnosis is made through observation and standardized diagnostic criteria, and can reliably be made by age 2.

Symptoms

  • Sensory integration dysfunction
    • Hyposensitivity (sensory seeking) or hypersensitivity (sensory avoidant)
  • Difficulty with verbal and non-verbal communication
  • Impaired coordination
  • Balance deficits
  • Occasional strength and range of motion deficits
  • Developmental delay

Physical therapy interventions for autism spectrum disorder

  • Address developmental delay
  • Improve strength
  • Improve balance and coordination
  • Sensory integration activities
  • Be aware that new people and situations can cause either withdrawal behavior or increased aggression

Brachial plexus injuries

Definitions
Brachial plexus injuries
Compression or traction injuries that occur during birth and lead to dysfunction of one or both upper extremities.

Common causes of brachial plexus injuries include shoulder dystocia, breech birth, assisted birth techniques such as forceps or vacuum, increased birth weight, multiple birth (twins or more), or gestational diabetes. Diagnosis is based on physical examination of upper extremity movement and primitive reflexes, with x-ray or MRI as needed. A clavicle fracture, the most common newborn fracture, can also leave the arm moving less and the Moro reflex absent on that side, but palpation finds tenderness, crepitus and irregularity along the clavicle, and radiographs confirm the fracture.

Severity of brachial plexus injuries

  • Traction
    • Stretching of the nerve with spontaneous recovery
  • Rupture
    • Nerve is torn but remains attached to the spinal cord; may require surgical intervention
  • Avulsion
    • Nerve is completely torn from the spinal cord; permanent disability may result after surgical intervention

Common brachial plexus injuries

Condition Nerve roots Posture/presentation Preserved function Typical complication
Erb’s palsy C5-C6 “Waiter’s tip”: shoulder adducted and internally rotated, elbow extended, forearm pronated, wrist flexed Hand and grasp function preserved Shoulder girdle immobility leading to subluxation
Klumpke’s palsy C8-T1 Claw hand (intrinsic hand muscles and finger flexors/extensors affected); Horner syndrome possible with T1 involvement Functional use of the shoulder and elbow Contractures of the hand
Global palsy C5-T1 Total arm paralysis None Permanent disability common after surgical intervention
Erb's and Klumpke's palsy
Erb's and Klumpke's palsy
Achievable

Physical therapy interventions for brachial plexus injuries

  • Partial immobilization for 1-2 weeks of the injured extremity
  • Constraint-induced movement therapy: restrain the non-injured arm to encourage use of the injured arm
  • Range of motion to avoid contractures
  • Age-appropriate movements to decrease the likelihood of developmental delay
  • Parent education on positioning and handling of the infant

Watch-out: Avoid lifting an infant with a brachial plexus injury under the arms or pulling on the affected arm, and keep shoulder range of motion gentle to protect against subluxation. Report pain with handling or any loss of motion or function to the supervising PT rather than adjusting the plan of care independently.

Torticollis

Definitions
Torticollis
A condition in which an infant’s neck bends and rotates due to tightness in the neck muscles - specifically the sternocleidomastoid, which is responsible for cervical lateral flexion to the same side and cervical rotation to the opposite side.

Torticollis can be caused by difficulties at birth, large infant weight, breech birth, or improper positioning after birth. Diagnosis is confirmed via physical examination.

Sternocleidomastoid
Sternocleidomastoid
Uwe Gille
/
Wikimedia Commons
/
Public domain
Torticollis
Torticollis
Henry Vandyke Carter (1831-1897), Henry Gray (1918) Anatomy of the Human Body
/
Wikimedia Commons
/
Public domain

Symptoms

  • Persistent head tilt to one side
  • Difficulty turning the head toward the side of the tilt (the involved side), because the tight SCM holds the chin rotated away
  • A lump or knot may be felt in the tight neck muscle
  • Facial asymmetry may develop over time
  • Flat head on the side opposite the muscle tightness may present (plagiocephaly)

Physical therapy interventions for torticollis

  • Stretching of the contracted sternocleidomastoid muscle
  • Stretching involves lateral flexion away from the involved side and rotation toward the involved side (e.g., for right torticollis: left lateral flexion and right rotation), which reverses the muscle’s actions
  • Stop stretching if the infant shows distress or a color change, and report it to the supervising PT
  • Positioning to allow for prolonged stretching
  • Addressing any developmental delay issues
  • Collect and report objective measures (e.g., cervical range of motion, degree of head tilt) to the supervising PT rather than progressing the plan independently
  • Stretching and positioning are the standard treatment for congenital muscular torticollis; surgery on the sternocleidomastoid is suggested only if nonsurgical options do not correct it, and botulinum toxin may be injected into the stiff muscle when torticollis is difficult to treat

Scoliosis

  • Lateral spinal curvature with vertebral rotation; causes include cerebral palsy, muscular dystrophy, birth defects, trauma, infection, or idiopathic (most common, diagnosed in adolescence via exam/X-ray)
  • Severity measured by Cobb angle:
    • Mild: 10-20° (no intervention/conservative); <10° is not scoliosis
    • Moderate: 20-40° (bracing + PT)
    • Severe: >40° (surgery typically ~45-50°+; curves >50° risk respiratory compromise)
  • Symptoms: uneven shoulders/waist/hips, prominent scapula, rib hump
  • PTA role: address muscle imbalances, reinforce shoe inserts (functional scoliosis), reinforce brace wear schedule (TLSO/Boston brace) and prescribed exercises, monitor breathing/skin under braces, report fit or respiratory changes to PT

Autism spectrum disorder

  • Neurodevelopmental disorder: social communication deficits + restricted/repetitive behaviors; often with motor delays, coordination issues, atypical play
  • Unknown etiology, strong genetic link; diagnosable by age 2 via observation/criteria
  • Symptoms: sensory dysfunction (hyper/hyposensitive), communication difficulty, impaired coordination/balance, possible strength/ROM deficits, developmental delay
  • PTA role: address developmental delay, strength, balance/coordination, sensory integration activities; be aware new situations may trigger withdrawal or aggression

Brachial plexus injuries

  • Birth-related compression/traction injury to upper extremity nerves; causes: shoulder dystocia, breech birth, assisted delivery, high birth weight, multiples, gestational diabetes
  • Severity levels: traction (stretch, spontaneous recovery) < rupture (torn, may need surgery) < avulsion (torn from spinal cord, often permanent)
  • Common patterns:
    • Erb’s palsy (C5-C6): “waiter’s tip” posture, hand/grasp preserved, risk of shoulder subluxation
    • Klumpke’s palsy (C8-T1): claw hand, possible Horner syndrome, shoulder/elbow preserved, risk of hand contractures
    • Global palsy (C5-T1): total arm paralysis, poor prognosis
  • PTA role: partial immobilization (1-2 weeks), constraint-induced movement therapy, gentle ROM to prevent contractures, age-appropriate developmental activities, parent education on handling
  • Safety: never lift infant by arms/underarms or pull affected arm; keep shoulder ROM gentle to avoid subluxation

Torticollis

  • Neck bending/rotation due to tight sternocleidomastoid (SCM causes same-side lateral flexion, opposite-side rotation); causes: difficult birth, large infant size, breech birth, improper positioning
  • Symptoms: persistent head tilt, limited rotation toward the tilted (involved) side, palpable muscle lump, facial asymmetry, plagiocephaly (flat head)
  • PTA role: stretch SCM by lateral flexion away from and rotation toward the involved side (reverses muscle action); positioning for sustained stretch; address developmental delay
  • Stop stretching if infant shows distress/color change; report objective measures (ROM, head tilt) to PT rather than progressing independently

General safety notes (all conditions)

  • PTA follows PT’s plan of care without independent adjustments
  • Report any loss of motion/function, skin breakdown, respiratory changes, or distress signs promptly to supervising PT

Sign up for free to take 18 quiz questions on this topic

Previous
Next  | 5.1 Anatomy of musculoskeletal system
All rights reserved ©2016 - 2026 Achievable, Inc.

Scoliosis, autism, and birth injuries

These pediatric conditions affect the spine, development, and the infant at birth; as with the hip and knee conditions, the PTA carries out the plan of care established by the supervising PT.

Scoliosis

Definitions
Scoliosis
A lateral (side-to-side) curvature of the spine, usually with vertebral rotation, which may develop due to cerebral palsy, muscular dystrophy, birth defects, trauma, infections of the spine, or idiopathic causes.

Most idiopathic cases are diagnosed during adolescence via physical examination and X-ray imaging. The severity of scoliosis is defined by the degree of curve - this also guides which interventions may be performed.

Cobb angle (severity of scoliosis)

  • Mild scoliosis: Cobb angle of 10 to 20 degrees (a curve under 10 degrees is not considered scoliosis)
    • No intervention or conservative management
  • Moderate scoliosis: Cobb angle between 20 and 40 degrees
    • Bracing and physical therapy may be indicated
  • Severe scoliosis: Cobb angle greater than 40 degrees
    • Surgical intervention is generally recommended once the curve exceeds about 45-50 degrees; curves of 40-45 degrees in a still-growing child may still be braced; large curves, generally greater than 50 degrees, can begin to compromise the respiratory system

A younger age or a lower Risser sign (the most common radiographic marker of skeletal maturity) means more spinal growth remains and a greater chance of curve progression, so a growing child with a curve of about 25 to 40 degrees is a candidate for bracing.

Symptoms

  • Uneven shoulders
  • One shoulder blade that appears more prominent than the other
  • Uneven waist
  • One hip is higher than the other
  • One side of the rib cage jutting forward

Physical therapy interventions for scoliosis

  • Address muscle imbalances that may be present due to curvature, per the plan of care
  • For functional scoliosis caused by leg-length discrepancy, apply and reinforce use of prescribed shoe inserts
  • Reinforce the prescribed bracing wear schedule (e.g., TLSO/Boston brace) and scoliosis-specific exercises per the plan of care
  • Reinforce use of prescribed durable medical equipment, monitor breathing in large curves, and report changes in fit, tolerance, or respiratory status to the supervising PT
  • Inspect the skin under the brace for redness or breakdown, and report it to the supervising PT

Autism spectrum disorder

Definitions
Autism spectrum disorder
A neurodevelopmental disorder defined by persistent difficulties in social communication and interaction plus restricted, repetitive patterns of behavior, interests, or activities; motor delays, coordination deficits, and atypical play are commonly associated.

Etiology is unknown, but there is a strong genetic predisposition, along with some prenatal or perinatal environmental factors that may contribute. Diagnosis is made through observation and standardized diagnostic criteria, and can reliably be made by age 2.

Symptoms

  • Sensory integration dysfunction
    • Hyposensitivity (sensory seeking) or hypersensitivity (sensory avoidant)
  • Difficulty with verbal and non-verbal communication
  • Impaired coordination
  • Balance deficits
  • Occasional strength and range of motion deficits
  • Developmental delay

Physical therapy interventions for autism spectrum disorder

  • Address developmental delay
  • Improve strength
  • Improve balance and coordination
  • Sensory integration activities
  • Be aware that new people and situations can cause either withdrawal behavior or increased aggression

Brachial plexus injuries

Definitions
Brachial plexus injuries
Compression or traction injuries that occur during birth and lead to dysfunction of one or both upper extremities.

Common causes of brachial plexus injuries include shoulder dystocia, breech birth, assisted birth techniques such as forceps or vacuum, increased birth weight, multiple birth (twins or more), or gestational diabetes. Diagnosis is based on physical examination of upper extremity movement and primitive reflexes, with x-ray or MRI as needed. A clavicle fracture, the most common newborn fracture, can also leave the arm moving less and the Moro reflex absent on that side, but palpation finds tenderness, crepitus and irregularity along the clavicle, and radiographs confirm the fracture.

Severity of brachial plexus injuries

  • Traction
    • Stretching of the nerve with spontaneous recovery
  • Rupture
    • Nerve is torn but remains attached to the spinal cord; may require surgical intervention
  • Avulsion
    • Nerve is completely torn from the spinal cord; permanent disability may result after surgical intervention

Common brachial plexus injuries

Condition Nerve roots Posture/presentation Preserved function Typical complication
Erb’s palsy C5-C6 “Waiter’s tip”: shoulder adducted and internally rotated, elbow extended, forearm pronated, wrist flexed Hand and grasp function preserved Shoulder girdle immobility leading to subluxation
Klumpke’s palsy C8-T1 Claw hand (intrinsic hand muscles and finger flexors/extensors affected); Horner syndrome possible with T1 involvement Functional use of the shoulder and elbow Contractures of the hand
Global palsy C5-T1 Total arm paralysis None Permanent disability common after surgical intervention

Physical therapy interventions for brachial plexus injuries

  • Partial immobilization for 1-2 weeks of the injured extremity
  • Constraint-induced movement therapy: restrain the non-injured arm to encourage use of the injured arm
  • Range of motion to avoid contractures
  • Age-appropriate movements to decrease the likelihood of developmental delay
  • Parent education on positioning and handling of the infant

Watch-out: Avoid lifting an infant with a brachial plexus injury under the arms or pulling on the affected arm, and keep shoulder range of motion gentle to protect against subluxation. Report pain with handling or any loss of motion or function to the supervising PT rather than adjusting the plan of care independently.

Torticollis

Definitions
Torticollis
A condition in which an infant’s neck bends and rotates due to tightness in the neck muscles - specifically the sternocleidomastoid, which is responsible for cervical lateral flexion to the same side and cervical rotation to the opposite side.

Torticollis can be caused by difficulties at birth, large infant weight, breech birth, or improper positioning after birth. Diagnosis is confirmed via physical examination.

Symptoms

  • Persistent head tilt to one side
  • Difficulty turning the head toward the side of the tilt (the involved side), because the tight SCM holds the chin rotated away
  • A lump or knot may be felt in the tight neck muscle
  • Facial asymmetry may develop over time
  • Flat head on the side opposite the muscle tightness may present (plagiocephaly)

Physical therapy interventions for torticollis

  • Stretching of the contracted sternocleidomastoid muscle
  • Stretching involves lateral flexion away from the involved side and rotation toward the involved side (e.g., for right torticollis: left lateral flexion and right rotation), which reverses the muscle’s actions
  • Stop stretching if the infant shows distress or a color change, and report it to the supervising PT
  • Positioning to allow for prolonged stretching
  • Addressing any developmental delay issues
  • Collect and report objective measures (e.g., cervical range of motion, degree of head tilt) to the supervising PT rather than progressing the plan independently
  • Stretching and positioning are the standard treatment for congenital muscular torticollis; surgery on the sternocleidomastoid is suggested only if nonsurgical options do not correct it, and botulinum toxin may be injected into the stiff muscle when torticollis is difficult to treat
Key points

Scoliosis

  • Lateral spinal curvature with vertebral rotation; causes include cerebral palsy, muscular dystrophy, birth defects, trauma, infection, or idiopathic (most common, diagnosed in adolescence via exam/X-ray)
  • Severity measured by Cobb angle:
    • Mild: 10-20° (no intervention/conservative); <10° is not scoliosis
    • Moderate: 20-40° (bracing + PT)
    • Severe: >40° (surgery typically ~45-50°+; curves >50° risk respiratory compromise)
  • Symptoms: uneven shoulders/waist/hips, prominent scapula, rib hump
  • PTA role: address muscle imbalances, reinforce shoe inserts (functional scoliosis), reinforce brace wear schedule (TLSO/Boston brace) and prescribed exercises, monitor breathing/skin under braces, report fit or respiratory changes to PT

Autism spectrum disorder

  • Neurodevelopmental disorder: social communication deficits + restricted/repetitive behaviors; often with motor delays, coordination issues, atypical play
  • Unknown etiology, strong genetic link; diagnosable by age 2 via observation/criteria
  • Symptoms: sensory dysfunction (hyper/hyposensitive), communication difficulty, impaired coordination/balance, possible strength/ROM deficits, developmental delay
  • PTA role: address developmental delay, strength, balance/coordination, sensory integration activities; be aware new situations may trigger withdrawal or aggression

Brachial plexus injuries

  • Birth-related compression/traction injury to upper extremity nerves; causes: shoulder dystocia, breech birth, assisted delivery, high birth weight, multiples, gestational diabetes
  • Severity levels: traction (stretch, spontaneous recovery) < rupture (torn, may need surgery) < avulsion (torn from spinal cord, often permanent)
  • Common patterns:
    • Erb’s palsy (C5-C6): “waiter’s tip” posture, hand/grasp preserved, risk of shoulder subluxation
    • Klumpke’s palsy (C8-T1): claw hand, possible Horner syndrome, shoulder/elbow preserved, risk of hand contractures
    • Global palsy (C5-T1): total arm paralysis, poor prognosis
  • PTA role: partial immobilization (1-2 weeks), constraint-induced movement therapy, gentle ROM to prevent contractures, age-appropriate developmental activities, parent education on handling
  • Safety: never lift infant by arms/underarms or pull affected arm; keep shoulder ROM gentle to avoid subluxation

Torticollis

  • Neck bending/rotation due to tight sternocleidomastoid (SCM causes same-side lateral flexion, opposite-side rotation); causes: difficult birth, large infant size, breech birth, improper positioning
  • Symptoms: persistent head tilt, limited rotation toward the tilted (involved) side, palpable muscle lump, facial asymmetry, plagiocephaly (flat head)
  • PTA role: stretch SCM by lateral flexion away from and rotation toward the involved side (reverses muscle action); positioning for sustained stretch; address developmental delay
  • Stop stretching if infant shows distress/color change; report objective measures (ROM, head tilt) to PT rather than progressing independently

General safety notes (all conditions)

  • PTA follows PT’s plan of care without independent adjustments
  • Report any loss of motion/function, skin breakdown, respiratory changes, or distress signs promptly to supervising PT

More from Developmental and acquired disorders

  • Hip and knee conditions