Medical Encyclopedia

 

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Spasticity

Contents of this page:

Illustrations

Central nervous system
Central nervous system

Alternative Names    Return to top

Muscle stiffness

Definition    Return to top

Spasticity is stiff or rigid muscles with exaggerated, deep tendon reflexes (for example, a knee-jerk reflex). The condition can interfere with walking, movement, or speech.

See also: Muscle cramps

Considerations    Return to top

Spasticity generally results from damage to the part of the brain that controls voluntary movement. It may also occur when you have damage to the nerves traveling from brain down to spinal cord.

Symptoms of spasticity include:

Spasticity may also interfere with speech. Severe, long-term spasticity may lead to contracture of muscles, causing joints to be bent at a fixed position.

Causes    Return to top

This list is not all-inclusive.

Home Care    Return to top

Exercise, including muscle stretching, can help make your symptoms less severe. Home-based physical therapy is also helpful

When to Contact a Medical Professional    Return to top

Contact your health care provider if:

What to Expect at Your Office Visit    Return to top

Your doctor will perform a physical exam and ask questions about your symptoms, including:

Your doctor may refer you to a physical therapist. Physical therapy consists of variety of exercises, including muscle stretching and strengthening exercises. Physical therapy exercises can be taught to parents who may then help their child perform them at home.

Medicines for spasticity include baclofen, tizanidine, cyclobenzaprine, and benzodiazepines. In rare cases, a pump may be inserted into the spinal fluid to directly deliver medicine to the nervous system.

Botox injections may help relieve spasticity symptoms in some patients.

Sometimes, a person may need surgery to release the tendon or to cut the the nerve-muscle pathway.

References    Return to top

Griggs R, Jozefowicz R, Aminoff M. Approach to the patient with neurologic disease. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 418.

Hammerstad J. Strength and reflexes. In: Goetz, CG, ed. Textbook of Clinical Neurology. 3rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 15.

Update Date: 3/26/2009

Updated by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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