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What is spasticity?
Spasticity is a condition in which muscles are tight or stiff. For example, your hand may stay clenched in a fist or your knee may be hard to bend. At times the muscles may jerk or spasm uncontrollably. It can interfere with your ability to move, speak, or walk normally.
What causes spasticity?
Spasticity usually occurs because of damage to the part of the brain or spinal cord that controls voluntary movement. It's often the result of a spinal cord injury, a stroke, or a disease such as multiple sclerosis, cerebral palsy, or amyotrophic lateral sclerosis (ALS, Lou Gehrig's disease).
What are the symptoms?
Common symptoms include:
- Increased muscle tone, which makes the muscles stiff or tight.
- Overactive reflexes.
- Muscle spasms.
- Series of repeated quick muscle contractions (clonus).
- Stiff joints.
If spasticity isn't treated, the muscles may freeze in an abnormal position. This can be very painful.
How is it treated?
The main treatments are physical therapy and medicines that help reduce muscle spasms. Surgery may be an option in severe cases.
Exercise and stretching are important treatments for spasticity. Therapists will work with you to increase your range of motion and keep your muscles from getting stiff. You will need to move the affected limb over and over again on a regular basis. You may do this on your own or with the help of a therapist, machine, or caregiver.
In some cases, cold packs and electrical stimulation are used on muscles. Casts or splints may be used to stretch the muscles and keep them from contracting.
Muscle relaxants (antispasmodics) are used to treat spasticity. They include baclofen (such as Gablofen) and tizanidine (Zanaflex). These medicines relax tight muscles and stop muscle spasms. But they may cause sleepiness, muscle weakness, and nausea.
Baclofen is the medicine most often prescribed for spasticity. You can take it as a pill, or a surgeon can implant a small pump under your skin that delivers the medicine directly to your spinal cord. The advantage of the pump is that you will use less medicine. This reduces the side effects that are a problem with baclofen pills. Your doctor can tell you if the pump is right for you.
Other medicines that may be used include gabapentin (such as Neurontin), diazepam (Valium), clonazepam (such as Klonopin), and dantrolene (Dantrium). In many cases, taking small doses of a combination of medicines works better and causes fewer side effects than taking a larger dose of a single medicine.
Botulinum toxin (such as Botox) injections given directly into the muscle can block messages that cause the muscle to spasm. The effect of one injection lasts about 3 to 4 months.
Some people try medical marijuana to relieve spasticity. But at present, experts don't recommend it because there is not enough evidence that its benefits are greater than its risks.
Some people with severe spasticity may need surgery. For example, surgery may be done to:
- Release the biceps or triceps tendon in the arm.
- Lengthen the hamstring or Achilles tendon in a person who has problems walking.
- Release the toe flexor muscles.
Other Places To Get Help
|National Institute of Neurological Disorders and Stroke|
|NIH Neurological Institute|
|P.O. Box 5801|
|Bethesda, MD 20824|
The National Institute of Neurological Disorders and Stroke (NINDS), a part of the National Institutes of Health, is the leading U.S. federal government agency supporting research on brain and nervous system disorders. It provides the public with educational materials and information about these disorders.
|Multiple Sclerosis Foundation|
|6520 North Andrews Avenue|
|Fort Lauderdale, FL 33309-2130|
This not-for-profit organization provides support services and information on holistic, alternative, and conventional medical care options for people with multiple sclerosis (MS). It does not endorse any single health care approach but provides information on all. It publishes a quarterly newsletter.
|Spinal Cord Injury Information Network|
This website offers educational materials and information on services of the University of Alabama Spinal Cord Injury Model System (UAB-SCIMS). It includes links to national organizations, government agencies, commercial products, and educational resources related to spinal cord injury.
Other Works Consulted
Keenan MAE, Mehta S (2006). Spinal cord injury section of Rehabilitation. In HB Skinner, ed., Current Diagnosis and Treatment in Orthopedics, 4th ed., pp. 681–688. New York: Lange Medical Books/McGraw-Hill.
Leussink VI, et al. (2012). Symptomatic therapy in multiple sclerosis: The role of cannabinoids in treating spasticity. Therapeutic Advances in Neurological Disorders, 5(5): 255–266. Also available online: http://tan.sagepub.com/content/5/5/255.abstract.
Simpson DM, et al. (2008). Assessment: Botulinum neurotoxin for the treatment of spasticity (an evidence-based review): Report of the Therapeutics and Technology Assessment Subcommittee of the American Academy of Neurology. Neurology, 70(19): 1691–1698.
|Primary Medical Reviewer||Anne C. Poinier, MD - Internal Medicine|
|Specialist Medical Reviewer||Karin M. Lindholm, DO - Neurology|
|Last Revised||October 26, 2012|
|By:||Healthwise Staff||Last Revised: October 26, 2012|
|Medical Review:||Anne C. Poinier, MD - Internal Medicine|
Karin M. Lindholm, DO - Neurology
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