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The Filum Disease

Last update: 17/06/2020, Dr. Miguel B. Royo Salvador, Medical Board number 10389. Neurosurgeon y Neurologist.

What is the Filum Disease?

The Filum Disease includes conventional diseases such as: Arnold-Chiari Syndrome Type I, Idiopathic Syringomyelia y Idiopathic Scoliosis, Platybasia, Basilar Invagination, Odontoid Retroflexion, Brainstem Kinking, and it may have a bearing in the appearance of Disc Disease (disc protrusions and herniations), Spinal Stenosis, Nocturnal Enuresis and others.

The Filum Disease becomes manifest mainly with symptoms of the nervous system, the skull and the spine, such as: headaches, nausea, vomiting, dysphagia, vertigo, memory deterioration, neck pain, upper back pain, lower back pain, paraesthesias, sensitivity alterations, pain in the extremities, balance alterations, insomnia, lack of strength in the extremities, amongst many others.

According to our research, the Filum Disease is a consequence of the traction exerted by a filum terminale that is tenser than normal of the whole nervous system: spinal cord, brainstem, cerebellum and brain.

The Filum Disease is an apparently hereditary condition, affecting one in every five individuals.

Following a detailed diagnostic assessment and the latter application of the minimally invasive surgical sectioning of the filum terminale, the cause for the disease is eliminated, which on top of eliminating the disease’s cause and halting its progression does not have any harmful collateral effect with excellent results and without relevant complications.

Our Institut Chiari & Siringomielia & Escoliosis de Barcelona (ICSEB) has developed the health method Filum System®, based in its research that allows for an unerring diagnosis of the Filum Disease and its many consequences with an appropriate treatment by means of minimally invasive techniques.

This makes the recovery of reversible injuries of the nervous system possible and in some cases to obtain positive anatomical changes (disappearance of the Syringomyelia, ascent of the cerebellar tonsils, straightening of the spine and decrease of the disc disease).

SIt is applied successfully in children, adults and elderly people, because the recovery is swift and easy. (See outcomes of the treatment of the disease.)

We have been studying the Filum Disease since 1975 and we are at the front line as the ICSEB is the only centre worldwide where other than being always busy with research, we diagnose according to and apply the Filum System® method, the only method described for the study of development of the Filum Disease that helps the nervous system with the recovery of the injuries produced by the condition.




  1. Royo-Salvador, M.B.; Fiallos-Rivera, M.V.; Salca, H.C.; Ollé-Fortuny, G. (2020), The Filum disease and the Neuro-Craniovertebral syndrome: definition, clinical picture and imaging features, 20:175, BMC Neurology
  2. Royo-Salvador, M.B. (2014), “Filum System® Bibliography” (PDF).
  3. Royo-Salvador, M.B. (2014), “Filum System® Guía Breve”.


Understand the difference among the diagnoses of Occult tethered cord syndrome, Tethered cord syndrome y Filum Disease


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