Intrathecal Baclofen Pump
An intrathecal baclofen pump delivers medication directly to the spinal fluid to relieve severe spasticity, helping control tightness and spasms with lower doses and fewer systemic side effects than oral medication.
Spasticity and neurorestoration pathway
From tone and function assessment to recovery strategy
Function review
Assess injury type, tone pattern, remaining strength, sensation, disability, and rehabilitation history.
Goal definition
Define the goal, such as comfort, positioning, arm use, hand control, independence, or disease-modulation strategy.
Option matching
Compare baclofen pump, SDR, paired VNS, VNS for RA, nerve transfer, ReActiv8, or research pathways.
Procedure planning
Plan the implant, rhizotomy, stimulation therapy, or reconstruction only when candidacy, timing, and goals align.
Rehabilitation
Coordinate recovery, therapy, programming, outcome tracking, and long-term follow-up.
Function-focused
Planning starts with tone, comfort, remaining function, and realistic recovery goals.
Technology-aware
Established therapies, emerging devices, and research pathways are separated clearly.
Rehabilitation-linked
Surgical and device decisions are coordinated around therapy participation and follow-up.
Overview
An intrathecal baclofen (ITB) pump treats severe spasticity by delivering medication directly into the fluid around the spinal cord. Because the drug is delivered close to the spinal cord receptors involved in tone control, it can reduce tightness and spasms using much smaller doses than oral medication, often with fewer systemic side effects such as sedation.
The goal is not to make every muscle loose. The goal is to find a useful balance: less painful tightness and fewer spasms while preserving strength, transfers, posture, walking potential, and daily function where possible.
When conservative treatment is not enough
A baclofen pump is considered when spasticity remains disabling despite oral medication, therapy, positioning, and injections, or when the oral doses required cause intolerable side effects. It is for patients who need more than first-line treatment.
Common reasons to consider ITB include painful spasms, difficulty with hygiene or dressing, impaired sitting or transfers, trouble fitting braces, sleep disruption, or generalized tone that affects multiple limbs.
Who it helps
- Spasticity after stroke
- Spasticity after brain or spinal cord injury
- Cerebral palsy
- Multiple sclerosis
- Other selected brain or spinal cord conditions causing severe spasticity
How it works
A trial dose is given first to confirm benefit. This may be a single injection or, in selected cases, a temporary catheter trial. The trial helps the team evaluate whether medication delivered to the spinal fluid meaningfully reduces tone or spasms and whether side effects are acceptable.
If the response is useful, a small pump is implanted under the skin, usually in the abdomen, and connected to a thin catheter that delivers medication to the spinal fluid. The pump contains a reservoir for medication, a refill port, a catheter connection, and a programmable computer that controls the dose. The dose is adjusted over time, and the pump is refilled periodically in clinic.
What to expect
- A trial dose to confirm the pump will help
- Implantation of the pump and catheter
- Precise, adjustable dosing tailored to your goals
- Periodic refills and dose adjustments in clinic
- Several days or visits of dose adjustment may be needed before the best balance is found
- Long-term planning for refills, alarms, troubleshooting, and eventual battery replacement
Risks and responsibilities
Possible risks include infection, bleeding, spinal fluid leak, catheter problems, pump malfunction, medication side effects, withdrawal if medication delivery stops, and overdose if too much medication is delivered. Patients and caregivers need to understand refill schedules, pump alarms, and when to seek urgent care.
Because the pump requires ongoing maintenance, it is best viewed as a long-term treatment partnership rather than a one-time procedure.
Dr. Barone’s approach
Dr. Barone evaluates spasticity within a multidisciplinary team, focusing on each patient’s goals, such as reducing pain, easing care, improving sleep, supporting transfers, or improving function. ITB therapy is considered when adjustable medication delivery offers the best balance of benefit, tolerability, and long-term practicality.
Frequently asked questions
What is an intrathecal baclofen pump? +
It is a small device implanted under the skin of the abdomen that delivers baclofen — a muscle-relaxing medication — directly into the fluid around the spinal cord through a thin catheter. Because the medication acts right where it is needed, it controls spasticity with much smaller doses and fewer side effects than baclofen taken by mouth.
Who is a candidate for a baclofen pump? +
It is considered for people with severe spasticity — often after stroke, brain injury, spinal cord injury, cerebral palsy, or multiple sclerosis — whose tightness and spasms are not adequately controlled by oral medication, or who cannot tolerate the side effects of high oral doses. A trial dose is performed first to confirm benefit.
Is there a way to know if it will work before implanting it? +
Yes. Before the pump is implanted, a trial dose of baclofen is given to see how well your spasticity responds. The pump is only implanted if the trial shows a clear, useful benefit.
How is the pump maintained? +
The pump is refilled with medication periodically in the clinic through a simple injection, and the dose can be adjusted precisely as your needs change. The device is replaced when its battery nears end of life, typically after several years.
What parts make up the pump system? +
The system includes a medication reservoir inside the pump, a refill port, a programmable computer, and a catheter that carries medication from the pump to the fluid around the spinal cord.
Does a baclofen pump remove all spasticity? +
The goal is useful reduction in tone and spasms, not complete elimination of all tone. Some tone may help standing, transfers, or posture, so dosing is adjusted around the patient's goals.
Considering treatment for Spasticity?
Dr. Barone evaluates new patients and referrals at Houston Methodist Hospital, Houston. Patients from outside Houston, across the United States, and internationally are welcome.