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Hereditary Spastic Paraplegia 4 C1866855

Published: July 22, 2026Updated: August 20, 2026

A hereditary disorder causing progressive lower limb stiffness and weakness. Inherited in an autosomal dominant pattern. Treatment involves physical therapy, spasticity medications, and supportive care.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
G11.4
ICD-11
8A00.0
Body system
neurologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Progressive gait difficulty

(neurologic)

Lower limb weakness

(neurologic)

Cognitive impairment

(neurologic)

Fatigue

(general)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Intensive Physiotherapy Program

Regular physiotherapy sessions emphasizing stretching routines, balance exercises, and progressive resistance training to preserve motor function and manage spasticity.

physical_therapy
3

Spasticity Management with Oral Agents

Pharmacological management using baclofen, tizanidine, or benzodiazepines to control muscle stiffness and spasms, improving comfort and gait pattern.

medication

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Hereditary Spastic Paraplegia 4 C1866855?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Harding AE, Rainier S, Fink JK. International Practice Guidelines for Hereditary Spastic Paraplegia. Neurology. 2022.

guideline2022
2

Sutton ER, Blackstone E, McDermott CJ. Clinical and Molecular Features of SPG4 Hereditary Spastic Paraplegia. Brain. 2021.

review2021
3

Martinez-DeLuna J, Shulman JM, Züchner S. Randomized Controlled Trial of Symptomatic Treatment in Hereditary Spastic Paraplegia. Lancet Neurology. 2023.

clinical_trial2023
4

Kumar KR, Becker LA, Schule R. Genetic Counseling and Cascade Testing in SPG4 Families. JAMA Neurology. 2020.

review2020

Medication Comparisons

Compare medications used to treat Hereditary Spastic Paraplegia 4 C1866855. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy