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Living with Spastic paraplegia-Paget disease of bone syndrome

An extremely rare inherited condition with slowly worsening leg stiffness and a bone disease called Paget disease.

Understanding Spastic paraplegia-Paget disease of bone syndrome

Spastic paraplegia-Paget disease of bone syndrome is an extremely rare, complex form of hereditary spastic paraplegia.

Leg stiffness and weakness slowly worsen, starting in adulthood, and occur together with Paget disease of the bone. GARD notes that cognitive decline, dementia and muscle biopsy changes have not been reported.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Stiff legs (spastic paraplegia)
  • Walking difficulty
  • Muscle weakness
  • Bone pain
  • Joint pain
  • Repeated fractures

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in VCP are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

  4. Connect with expert centers

    Spastic Paraplegia Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Genetic specialists (geneticists)
Expert care
Expert lists: Spastic Paraplegia Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Spastic Paraplegia Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Can genetic testing of the VCP gene confirm this diagnosis?
How should Paget disease of bone be monitored?
Which therapies help with walking and leg stiffness?

Quick facts

Symptoms usually startAdult
InheritanceAutosomal Dominant
GenesVCP

GARD lists changes in the VCP gene. It is inherited in an autosomal dominant pattern, meaning one changed copy of the gene is enough.

GeneticNeurological

Also known as: spastic paraplegia with paget disease of bone syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Spastic paraplegia-Paget disease of bone syndromeGARD ID 21491 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Spastic paraplegia-Paget disease of bone syndrome.

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