Hereditary Spastic Paraplegia
Hereditary Spastic Paraplegia
Also known as:HSP, Hereditary Spastic Paraplegia of Lower Limbs, Strumpell-Lorrain Syndrome
Hereditary spastic paraplegia is a group of inherited neurological disorders whose core features are spasticity, stiffness, and walking difficulty affecting both legs.
Start Here
A quick guide to the next step: which department to start with, what to prepare, and what to ask.
When gradual leg stiffness, scissor gait, tripping, toe-walking, high muscle tone, or hyperactive reflexes develop, evaluation at neurology, neurogenetics, or rehabilitation medicine is recommended.
HSP mainly affects the long nerve pathways that control leg movement. Uncomplicated forms mainly present with leg spasticity and walking difficulty. Complicated forms may also include ataxia, peripheral neuropathy, cognitive issues, seizures, optic nerve problems, or other systemic features.
Most types currently focus on symptom management, rehabilitation, gait aids, spasticity management, and complication care. Some treatable genetic or metabolic disorders should be actively ruled out during diagnosis.
Yes. Inheritance can be autosomal dominant, autosomal recessive, X-linked, or mitochondrial-related. Family history and genetic testing help determine the pattern.
Childhood onset may be mistaken for cerebral palsy or posture issues. Adult onset may be attributed to lumbar spine disease, lack of exercise, or ordinary spasticity. If multiple family members have similar symptoms, consider HSP.
This page helps patients and families organize care leads. It does not replace a clinician’s diagnosis or treatment plan. For testing, medication, referrals, emergency care, and support applications, follow qualified clinicians, medical institutions, support organizations, and official sources.
Diagnosis Path
Organized around the practical patient journey: identify clues, avoid common delays, then prepare for care.
When to Suspect It
- Gradual leg stiffness, shuffling gait, toe-walking, scissor gait, or frequent tripping.
- Neurological exam shows high leg muscle tone, hyperactive reflexes, or positive pathological reflexes.
- Symptoms slowly progress over years, or diagnosed as spastic cerebral palsy in childhood without clear perinatal cause.
- Accompanied by urinary urgency, mild sensory changes, or complicated-form features like ataxia, cognition, seizures, or vision/hearing problems.
- Multiple family members with similar walking difficulty, cane/wheelchair use, or early-onset leg stiffness.
Common Wrong Turns
- Managing only as lumbar disc herniation, orthopedic problem, or cerebral palsy without neurological localization or family history evaluation.
- Not screening for treatable genetic metabolic diseases, vitamin deficiencies, inflammation, or spinal cord lesions.
- Genetic testing looking at only a single gene without integrating phenotype and family interpretation.
- Focusing only on the diagnosis name while neglecting rehabilitation, spasticity management, bladder function, and fall prevention.
Departments to Start With
- Neurology
- Neurogenetics/Medical Genetics
- Rehabilitation Medicine
- Orthopedics or Foot and Ankle Clinic (for deformity assessment)
- Urology (for urinary urgency or bladder issues)
Before the Visit
- Record age of onset, progression speed, falls, motor ability, and similar symptoms in family.
- Bring brain/spinal cord MRI, electromyography, evoked potentials, and prior neurological exam records.
- Discuss whether HSP/motor pathway-related gene panel, exome, or genome testing is needed.
- Rule out treatable differential diagnoses such as metabolic, vitamin, immune, infectious, or structural spinal cord conditions.
- Assess gait, muscle tone, joint range of motion, foot/ankle deformities, bladder function, and fall risk.
Tests to Ask About
- Brain and spinal cord MRI.
- HSP-related gene testing or comprehensive genomic testing.
- Electromyography, nerve conduction, and evoked potentials (when the doctor considers necessary).
- Differential workup for vitamins, metabolism, infection, and immunity.
- Gait and rehabilitation functional assessments.
Questions for the Doctor
- Does my presentation look more like uncomplicated or complicated HSP?
- Which treatable conditions need to be ruled out first?
- How will genetic test results affect family screening and reproductive counseling?
- How are spasticity, pain, foot/ankle problems, and fall risk managed?
- What rehabilitation exercises and assistive devices do I need?
Basic Information
Medical Notes
More complete medical explanations are kept here for discussion with clinicians.
Symptoms
The core features of HSP are leg spasticity, stiffness, weakness, and walking difficulty, often with hyperactive reflexes, positive pathological reflexes, foot drop, or scissor gait. Some patients have urinary urgency or mild sensory changes. Complicated forms may also include ataxia, peripheral neuropathy, seizures, cognitive impairment, optic nerve, or other systemic features.
Diagnosis
Diagnosis requires neurological examination, brain and spinal cord imaging, family history, differential diagnosis workup, and genetic testing. Many genes are linked to HSP. A negative result does not completely rule out the condition, and a positive result requires interpretation in the context of symptoms, inheritance pattern, and family validation.
Treatment
Treatment focuses on functional management, including rehabilitation, stretching and gait training, spasticity and pain management, assistive devices, fall prevention, foot/ankle deformity care, and bladder symptom management. If a treatable metabolic or nutritional condition is identified, management should follow that specific disorder's guidelines.
Long-term Care
Long-term care focuses on walking ability, falls, joint contractures, pain, bladder function, psychological support, and work/life support. Regular rehabilitation assessments improve daily function more than waiting for genetic results alone.
Fertility and Family
HSP has various inheritance patterns. After identifying the disease-causing gene, family members can use genetic counseling to learn about relative screening, predictive testing, prenatal diagnosis, or preimplantation genetic testing options.
When to Seek Urgent Care
Sudden worsening of walking ability, acute urinary retention, significant back pain with neurological changes, rapid worsening after infection, or new arm/swallowing/breathing problems require prompt medical attention. Do not assume all acute problems are due to HSP.
Prognosis
Most uncomplicated forms progress slowly and do not significantly shorten lifespan, but functional impact varies widely. Complicated forms depend on involvement of related systems.