Cerebral palsy

What cerebral palsy is

Cerebral palsy is an umbrella term for lifelong disorders of movement and posture that arise from an injury or difference in the developing brain, before, during or shortly after birth. The underlying brain injury does not get worse over time — but because muscles, joints and bones are still growing, the way CP shows up can change as a child grows.

CP is described by the type of movement difficulty (spastic — by far the most common — dyskinetic, ataxic, or mixed), by which parts of the body are affected (for example one side, both legs, or all four limbs), and by function using the Gross Motor Function Classification System (GMFCS levels I to V), which ranges from walking independently to needing full support for mobility.

Early signs and early detection

One of the biggest recent advances is that CP can often be predicted or diagnosed well before the first birthday — typically before 6 months of corrected age — rather than waiting until missed milestones become obvious. Early, accurate detection opens a window to make the most of the brain's plasticity in the first year of life.

Detection is most reliable when several tools are combined: Prechtl's General Movements Assessment (where absent 'fidgety' movements at around 3–5 months is an important red flag), the Hammersmith Infant Neurological Examination (HINE), and brain imaging (MRI).

• Delayed motor milestones (head control, sitting, crawling)
• Early hand preference before 12 months of age (often a sign of one-sided weakness)
• Stiffness (spasticity) or unusual floppiness; persistent fisting of the hands
• Asymmetry in movement or posture, and abnormal or limited movements
• Feeding difficulties and irritability in infancy

Rehabilitation

Rehabilitation works best when it is active, task-specific and built around the child's and family's own goals, with enough intensity to drive change. It is delivered by a team — physiotherapy, occupational therapy and speech and language therapy — and supported by an enriched, encouraging home environment.

Some approaches have particularly good evidence: for one-sided (hemiplegic) CP, constraint-induced movement therapy and bimanual training; and across CP, goal-directed functional training, strength and fitness work, and augmentative and alternative communication (AAC) where speech is limited.

Tone management and orthopaedic care

Spasticity and dystonia (high or fluctuating muscle tone) can be eased with oral medicines such as baclofen, focal botulinum toxin injections, or — for severe, generalised tone — an intrathecal baclofen pump. Selective dorsal rhizotomy (SDR), a neurosurgical procedure, can reduce spasticity in carefully selected children, usually with spastic diplegia.

Because growing bones and joints are affected over time, orthopaedic care is central. Hip surveillance programmes track the hips so that displacement is caught early; orthotics, gait analysis and, when needed, single-event multilevel surgery address contractures and deformity. This combined neuro-orthopaedic approach aims to protect mobility, comfort and posture as a child grows.

Associated difficulties to look out for

CP rarely affects movement alone. Screening for the difficulties below matters, because several are treatable and are easy to miss — and addressing them often improves a child's comfort, learning and participation more than motor therapy alone.

• Epilepsy — common, particularly in more severe CP and certain patterns of brain injury
• Intellectual disability or learning difficulties — variable; many children have normal intelligence, so abilities should not be assumed from motor function
• Autism spectrum features — recognised more often in children with CP than in the general population
• Communication and speech difficulties — where AAC and speech therapy help
• Cortical (cerebral) visual impairment — a vision problem arising from the brain rather than the eyes, which is easily overlooked
• Chronic pain — among the most common and most under-recognised problems; it may be musculoskeletal (hips, spine, after surgery) and can also involve nervous-system (central sensitisation) mechanisms, so it deserves active assessment
• Sleep disturbance, constipation and other gut problems, feeding and growth difficulties
• Hip displacement, scoliosis, drooling and bladder issues

Experimental and emerging therapies

Alongside established care, several experimental therapies are being studied. Some are genuinely promising, but none has yet been proven enough to become standard treatment — and families are sometimes offered unregulated, costly versions outside proper trials.

• Stem-cell and cell therapies — umbilical cord blood and mesenchymal stromal cells appear to act mainly by reducing inflammation and supporting brain-cell survival, rather than replacing damaged tissue. Trials and meta-analyses suggest they are generally safe and may modestly improve motor function (measured by the GMFM), but the best cell type, dose and timing are still being worked out. No stem-cell product is approved for CP; academic programmes (for example at Duke in the US, and groups in Japan) and later-phase trials are ongoing.
• Extracellular vesicles / exosomes — tiny particles released by stem cells that carry their beneficial signals. Intranasal delivery of stem-cell-derived exosomes is an early, largely preclinical approach attracting growing interest for brain injury.
• Transcranial magnetic stimulation (TMS / rTMS) — non-invasive brain stimulation studied for hemiparesis and spasticity in CP and other paediatric conditions; early evidence suggests it is safe and tolerable with possible benefit, but it remains investigational in children.
• Photobiomodulation (low-level laser) and other neuromodulation or regenerative approaches are also being explored, with preliminary evidence only.

How an educational review can help

Cerebral palsy touches movement, orthopaedics, vision, communication, epilepsy, pain and sleep all at once, and families are often offered many different therapies — some evidence-based, some not. An educational review can explain the MRI and the assessments in plain language, set out how the current rehabilitation and orthopaedic plan fits evidence-based guidance, help prioritise interventions, and put experimental options (stem cells, exosomes, TMS, laser) in honest context.

It is an educational second opinion — not a diagnosis, treatment or prescription — and it does not replace the care of your child's own clinicians.