Evidence-based guide
Spasticity Treatment
Treatment works best when it starts with a real-life problem, not a muscle-tone score. The aim may be less pain, easier hygiene, safer walking, better sleep, improved hand use or more comfortable positioning.
For a condition-specific overview, read Spasticity in Cerebral Palsy: Symptoms, Treatment Goals and Rehabilitation.
Spasticity can be useful, harmful or both. Increased tone may help one person stand for a transfer while making another person’s hand painful and difficult to clean. For that reason, the presence of spasticity does not automatically mean it should be treated. A good plan weighs the problems it creates against any function it supports, the person’s priorities, the underlying neurological condition and the risks or burden of treatment.
Most plans combine approaches. Rehabilitation, positioning and management of triggers may be used alone or alongside medication, botulinum toxin injections, intrathecal baclofen or surgery. The choice is usually shaped by whether the problem is focal or widespread, whether joints remain flexible, how much weakness is present and what outcome would count as a meaningful improvement.
Medical boundary: this guide explains treatment categories but cannot identify which option is safe or appropriate for an individual. Prescription medicines, injections, pumps and surgical procedures require assessment by qualified clinicians.
Begin with goals and a complete assessment
Reducing resistance during a passive examination is not the same as improving daily function. Before treatment, the clinical team should identify the specific activity, symptom or care task that needs to change. Useful goals are concrete: opening the hand enough for palm hygiene, reducing nighttime spasms, allowing a brace to fit, placing the heel more safely, easing shoulder pain or making dressing less difficult.
Assessment may include muscle tone, active and passive range of motion, strength, selective motor control, sensation, pain, skin integrity, posture, walking or arm use. Clinicians also look for fixed shortening or joint changes. A limb that is difficult to move may be limited by neural overactivity, contracture, pain, swelling, weakness or several factors together. Each problem responds differently.
Address sudden worsening and common triggers
An unexplained increase in stiffness or spasms can be a sign of another medical problem. Urinary infection or retention, constipation, pressure injury, skin irritation, an ingrown toenail, fracture, pain, tight clothing or a poorly fitting orthosis may increase sensory input and aggravate spasticity. Treating the trigger may be more important than increasing an antispasticity medicine.
Seek prompt clinical advice when a change is sudden, severe or accompanied by fever, new weakness, significant pain, skin damage, altered bladder or bowel function, a fall or a decline in consciousness.
Rehabilitation and self-management
Physical and occupational therapy can address mobility, strength, task performance, positioning, range of motion, equipment and caregiver techniques. Treatment may include slow supported movement, active practice, strengthening, gait or balance training, upper-limb task practice, seating changes and a home program. The program should reflect the person’s diagnosis, endurance and safety rather than a universal exercise list.
Stretching is commonly used to maintain comfort and available range, but evidence does not support presenting stretching alone as a cure for spasticity. Lasting functional change usually requires a broader approach. Forceful stretching can be painful or harmful, particularly when a joint has fixed limitation, osteoporosis, recent injury or impaired sensation.
Splints, casts and orthoses may help position a joint, support a task or maintain range in selected people. Fit must be checked regularly. Persistent redness, pressure, swelling, numbness or increased pain deserves review. Learn more in our rehabilitation guide.
Botulinum toxin for focal spasticity
Botulinum neurotoxin type A is injected into selected muscles to reduce their activity temporarily. It is commonly considered when a limited group of muscles is interfering with a defined goal, such as hand hygiene, elbow position, shoulder comfort, foot placement or brace use. Effects develop over days, are temporary and vary between people.
Muscle selection, dose and injection technique require clinical expertise. Guidance with ultrasound, electrical stimulation or electromyography may be used to improve targeting. Treatment should be linked to a follow-up plan that may include therapy, active practice, positioning or orthotic review. Strong evidence supports reduction of focal muscle overactivity; improvement in active function is less predictable and depends on weakness, motor control, joint range and the chosen goal.
Possible adverse effects include injection-site discomfort, bruising, temporary weakness and, rarely, spread of toxin effect beyond the intended muscles. Product labeling, dose limits and approved uses differ by country and age group.
Oral antispasticity medicines
Oral medicines may be considered when spasms or muscle overactivity are more generalized. Options used in clinical practice include baclofen, tizanidine, dantrolene and, in selected circumstances, benzodiazepines or other agents. They act in different ways and have different monitoring requirements.
Potential benefits must be balanced against sedation, dizziness, weakness, low blood pressure, liver effects or other adverse events. Reducing tone throughout the body can make transfers or walking harder if a person relies on stiffness for support. Medicines are therefore usually started and adjusted cautiously. Baclofen and some other drugs should not be stopped abruptly because withdrawal can be dangerous.
Intrathecal baclofen
For severe, widespread spasticity that has not responded adequately to less invasive treatment, baclofen can be delivered into the fluid around the spinal cord through an implanted pump. This route can produce an effect with much smaller doses than oral treatment, but it requires surgery, dose adjustment, regular refills and lifelong attention to the device.
Before implantation, a specialist team commonly performs a screening trial and discusses realistic goals. Pump malfunction, catheter problems, infection, overdose or sudden interruption can be serious. Anyone with a pump needs clear emergency instructions and reliable access to specialist follow-up.
Phenol or alcohol neurolysis
Specialists may use phenol or alcohol to interrupt signaling in a selected motor nerve or motor point. Neurolysis can treat larger or deeper targets and may last longer than botulinum toxin, but it requires precise localization and carries risks that include pain, sensory disturbance and unintended weakness. Availability and practice vary between centers.
Surgery
Orthopedic procedures may lengthen or transfer tendons, release shortened tissue, correct a deformity or stabilize a joint. Neurosurgical options, including selective dorsal rhizotomy in carefully selected populations, modify neural pathways contributing to muscle overactivity. Surgery is not simply a stronger version of medication: it addresses particular structural or neurological problems and may be irreversible.
Decision-making should include the expected functional gain, rehabilitation required afterward, recurrence risk, effects on growth in children and the possibility that reducing tone will expose underlying weakness.
How clinicians judge whether treatment worked
The Modified Ashworth Scale is widely used to describe resistance to passive movement, but it should not be the only outcome. A useful review returns to the original goal and measures what actually changed: pain, sleep, range, hygiene, walking, hand use, ease of care, brace tolerance or participation. Goal Attainment Scaling and condition-specific functional measures may help capture meaningful outcomes.
If the expected benefit did not occur, the answer is not always a higher dose. The team may need to reconsider the diagnosis, target muscles, fixed contracture, treatment timing, rehabilitation plan or whether the goal was realistic.
Questions to ask the treatment team
- What specific problem are we treating?
- Is the spasticity focal, multifocal or generalized?
- How much of the limitation is caused by overactivity, and how much by weakness or contracture?
- Could reducing tone remove something I currently use for standing or transfers?
- What outcome will we measure, and when?
- What rehabilitation should happen before and after treatment?
- What adverse effects or warning signs require urgent help?
- What happens if the treatment does not meet the goal?
Sources
- American Stroke Association. Spasticity: treatment options and assessment.
- Francisco GE, Wissel J, Platz T, Li S. Post-Stroke Spasticity. Clinical Pathways in Stroke Rehabilitation. 2021.
- Simpson DM, et al. Botulinum neurotoxin for the treatment of spasticity: an evidence-based review. Neurology. 2008.
- Demetrios M, et al. Multidisciplinary rehabilitation following botulinum toxin and other focal intramuscular treatment for post-stroke spasticity. Cochrane Database Syst Rev. 2013.
- Cleveland Clinic. Intrathecal Baclofen Pump. Updated 2024.
- Pickard C, et al. A Primary Care Provider’s Guide to Spasticity Management in Spinal Cord Injury. Top Spinal Cord Inj Rehabil. 2020.
- Wissel J, et al. A practical guide to botulinum neurotoxin treatment of shoulder spasticity. Front Neurol. 2022.
Public-service medical disclaimer: this page provides general educational information. It does not provide diagnosis or treatment and should not be used to make or delay an individual medical decision.
When sleep is the main concern, treatment goals should include awakenings, pain, safe repositioning and next-day function. See the focused guide to spasticity at night.
When spasticity mainly affects the upper limb, goals may include easier palm hygiene, dressing, positioning or active hand use. Read the focused guide to hand and arm spasticity.
For positioning, hygiene or walking goals, an orthosis may be one part of treatment. Read the focused guide to splints and orthoses for spasticity, including fitting, wearing schedules and safety checks.
Before increasing treatment for a sudden flare, clinicians look for reversible causes. The guide to spasticity triggers and warning signs explains a safe check sequence and when urgent assessment is needed.
When pain is a treatment goal, first identify whether it arises from muscle overactivity, a fixed contracture, a joint, a nerve, skin pressure or another medical trigger. See the practical guide to spasticity, pain and cause-based assessment.
Exercise is often part of a wider treatment plan, but the safest programme depends on pain, weakness, joint range and functional goals. See how to stretch and exercise with spasticity safely.
When spasticity is related to multiple sclerosis, treatment must account for fatigue, heat sensitivity, fluctuating symptoms and the possibility that some tone supports standing or transfers. See the guide to MS spasticity treatment and trigger management.
Spasticity treatment is most useful when it is tied to a specific outcome in daily life rather than a tone score alone. Use the practical guide to setting measurable spasticity treatment goals for function, comfort, care and safety.
After spinal cord injury, treatment begins by checking bladder, bowel, skin, pain and positioning triggers before changing long-term medication. The guide to spinal cord injury spasticity explains goal-directed rehabilitation, medicines, focal treatment and intrathecal baclofen.
When lower-limb spasticity is severe and carefully defined goals justify a permanent intervention, selected patients may be assessed for selective dorsal rhizotomy. The operation requires specialist selection and a substantial rehabilitation commitment.
Treatment after a brain injury needs to account for cognition, fatigue, recovery stage and the person’s goals. See the focused guide to treating spasticity after TBI.
For focal patterns involving larger or deeper motor nerves, a specialist may consider phenol neurolysis for spasticity alongside other treatments after goals, anatomy and risks have been assessed.