Understanding Brachial Plexus Injury in Infants and Children

The brachial plexus is a network of nerves that originates from the spinal cord and controls movement and sensation in the shoulders, arms, and hands. When this network is injured, it can result in varying degrees of impairment in motor skills and sensation, especially for infants and children who rely on these nerves for early developmental milestones.

What is a Brachial Plexus Injury?


Brachial plexus injuries (BPIs) occur when these nerves are stretched, compressed, or torn. In infants, such injuries often happen during childbirth, particularly in cases of complicated deliveries, breech births, or when excessive force is applied. In children, these injuries may result from trauma, such as accidents or sports injuries.

Symptoms of BPI include:

Weakness or immobility in the affected arm

Loss of sensation

Poor grip strength 

Difficulty in performing fine motor skills

The severity can range from temporary weakness (neuropraxia) to more severe forms like nerve root avulsion. 

The Role of Occupational Therapy (OT) and Physical Therapy (PT)

Recovery and rehabilitation from a brachial plexus injury depend on early and effective intervention. Occupational therapy and physical therapy play a crucial role in helping children regain functionality, adapt to challenges, and achieve developmental milestones. 

A baby is sitting on a couch being held by a woman.

Occupational Therapy (OT): Building Functional Skills


Occupational therapy focuses on improving the child's ability to perform daily activities, particularly those involving the use of the arms and hands. Key strategies include: 

  • Fine Motor Skill Training

    Activities like grasping toys, holding

    utensils, and drawing help improve hand function and dexterity.

  • Splinting and Positioning

    Custom orthotic devices may be used to

    support the arm, reduce stiffness, and encourage proper positioning

    for healing and growth.

  • Sensory Integration

    For children experiencing numbness or

    hypersensitivity, OTs use techniques to normalize sensory responses.

Occupational therapists also work closely with parents, teaching them exercises and modifications to support their child’s development at home. 

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Physical Therapy (PT): Enhancing Strength and Mobility


Physical therapy aims to restore strength, mobility, and coordination in the affected arm. It complements OT by focusing on larger muscle groups and movements. Core components of PT include:

  • Range of Motion Exercises

    Gentle stretching and movements

    prevent joint stiffness and contractures.

  • Strengthening Exercises

    Therapists use age-appropriate tools like

    resistance bands or soft weights to rebuild muscle strength.

  • Developmental Milestone Support

    For infants and toddlers, PT ensures they meet key milestones, such as crawling or reaching, which can be affected by the injury.

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A baby is playing with an orange ball while a woman looks on.

A Collaborative Approach to Care


The most effective treatment plans combine OT and PT with other interventions like neurology consultations, surgical evaluations, and parent education. In severe cases, surgical repair of the nerve may be necessary, followed by intensive rehabilitation.

Key Benefits of Therapy


Restores functional use of the affected limb

Prevents long-term complications such as muscle atrophy or joint deformities

Promotes independence in daily activities

Hope and Healing for Children with BPI


With early diagnosis and the support of skilled occupational and physical therapists, most children with brachial plexus injuries can achieve significant improvements. These therapies not only address physical recovery but also empower children to lead fulfilling lives, nurturing their confidence and independence. 

If your child has been diagnosed with a brachial plexus injury, contact us to schedule an evaluation today to begin their journey toward recovery.

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