{"id":15076,"date":"2026-03-29T00:00:54","date_gmt":"2026-03-28T23:00:54","guid":{"rendered":"https:\/\/dev.institutchiaribcn.com\/enfermedades\/medulla-ancorada-amb-espina-bifida-oculta-o-occult-tethered-cord-syndrome\/"},"modified":"2026-03-30T12:41:02","modified_gmt":"2026-03-30T10:41:02","slug":"espina-bifida-oculta","status":"publish","type":"enfermedades","link":"https:\/\/institutchiaribcn.com\/ca\/espina-bifida-oculta\/","title":{"rendered":"Medul\u00b7la ancorada amb espina b\u00edfida oculta"},"content":{"rendered":"<div style=\"margin-top: 70px;\">\n<p><strong>\u00daltima actualitzaci\u00f3: 20\/03\/2026, <\/strong><a href=\"https:\/\/institutchiaribcn.com\/ca\/personal-clinic\/\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Dr. Miguel B. Royo Salvador<\/strong><\/a>, <strong>N\u00famero de col\u00b7legiat 10389.<\/strong> <strong>Neurocirurgi\u00e0 i Neur\u00f2leg.<\/strong><\/p>\n<h2><strong>Definici\u00f3<\/strong><\/h2>\n<p style=\"text-align: justify;\">En condicions normals, la medul\u00b7la espinal es troba subjecta dins del canal vertebral \u00fanicament pels lligaments dentats i el <em>filum terminale<\/em>, un lligament que uneix el con medul\u00b7lar amb les primeres v\u00e8rtebres del c\u00f2ccix.<\/p>\n<p>Quan, en canvi, la mobilitat de la medul\u00b7la espinal est\u00e0 limitada al canal ossi vertebral per la pres\u00e8ncia d\u2019una espina b\u00edfida no visible, que produeix un ancoratge, el quadre es defineix com a <strong>S\u00edndrome de medul\u00b7la ancorada<\/strong>.<\/p>\n<p>La <strong>S\u00edndrome de medul\u00b7la ancorada<\/strong> pot ser de tipus cong\u00e8nit o adquirit.<\/p>\n<p>La <strong>S\u00edndrome de medul\u00b7la ancorada amb espina b\u00edfida oculta<\/strong> o <strong>\u201cOccult Tethered<\/strong> <strong>Cord Syndrome\u201d<\/strong> \u00e9s de tipus cong\u00e8nit.<\/p>\n<p>La medul\u00b7la ancorada oculta o \u201cOccult Tethered Cord Syndrome\u201d va associada a una <strong>espina b\u00edfida oculta<\/strong>, que \u00e9s una malformaci\u00f3 neuro-espinal que consisteix en el desenvolupament incomplet de la medul\u00b7la espinal (de predomini a la regi\u00f3 lumbar), que fixa la medul\u00b7la espinal i produeix lesions mec\u00e0niques per tracci\u00f3, principalment medul\u00b7lars i vertebrals (<em>Fig.1<\/em>).<\/p>\n<p>Una <strong>espina b\u00edfida es defineix com a <em>oculta<\/em><\/strong> quan no \u00e9s visible externament; es tracta del tipus m\u00e9s com\u00fa i m\u00e9s lleu d\u2019espina b\u00edfida, que produeix una petita separaci\u00f3 o un petit buit en una o m\u00e9s de les v\u00e8rtebres de la columna vertebral. No obstant aix\u00f2, de vegades poden observar-se uns indicis visibles en la pell del nounat per sobre del defecte raquidi; per exemple una marca de naixement, un floc de cabell anormal o un clotet.<\/p>\n<div align=\"center\"><a href=\"https:\/\/institutchiaribcn.com\/wp-content\/uploads\/2019\/04\/Medula-anclada-Oculta.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"img-responsive\" src=\"https:\/\/institutchiaribcn.com\/wp-content\/uploads\/2019\/05\/Medula-anclada-Oculta.jpg\" alt=\"\" width=\"400\" height=\"371\" \/><\/a><\/div>\n<hr \/>\n<h2><strong>Diagn\u00f2stic<\/strong><\/h2>\n<p style=\"text-align: justify;\">El quadre cl\u00ednic d\u2019una medul\u00b7la ancorada per espina b\u00edfida oculta pot trobar-se present en n\u00e9ixer, per\u00f2 la major part dels malalts desenvolupa els seus s\u00edmptomes i signes neurol\u00f2gics en les dues primeres d\u00e8cades de la vida, preferentment a l\u2019adolesc\u00e8ncia, per tant; normalment \u00e9s un diagn\u00f2stic que es fa en l\u2019edat adulta. De fet, molts pacients ho descobreixen realitzant-se proves per altres motius.<\/p>\n<p>Per visualitzar-la i realitzar el diagn\u00f2stic s\u00f3n necess\u00e0ries exploracions complement\u00e0ries com la Resson\u00e0ncia Magn\u00e8tica Nuclear (RMN) o la Tomografia Axial Computada (TAC) o una radiografia simple del nivell de la columna vertebral on es troba l\u2019ancoratge.<\/p>\n<hr \/>\n<h2><strong>S\u00edmptomes<\/strong><\/h2>\n<p style=\"text-align: justify;\">A causa que els nervis raquidis, generalment, no estan afectats en la medul\u00b7la ancorada per espina b\u00edfida oculta, pot no manifestar-se cap signe ni s\u00edmptoma en tota la vida dels malalts, o aquests ser lleus durant molts anys.<\/p>\n<p>Quan es manifesta, a part dels esmentats <strong>estigmes cutanis<\/strong> que presenta, en la majoria dels casos els s\u00edmptomes consisteixen principalment en: <strong>alteracions sensitives i motores de les extremitats inferiors, debilitat de les mateixes que pot provocar dificultat de la marxa, alteracions dels esf\u00ednters<\/strong> \u2013com ara <strong>bufeta neurog\u00e8nica<\/strong>-, que es manifesta com <strong>enuresi o infeccions urin\u00e0ries repetides<\/strong>, <strong>i s\u00edmptomes dolorosos<\/strong> especialment en la part lumbar de l\u2019esquena, ci\u00e0tica, etc.<\/p>\n<p>Una vegada que apareixen els s\u00edmptomes neurol\u00f2gics, la majoria d\u2019aquests s\u00f3n irreversibles. Per aquest motiu, el diagn\u00f2stic d\u2019aquestes condicions ha de ser preco\u00e7, per poder prevenir-les amb el tractament.<\/p>\n<hr \/>\n<h2><strong>Causes<\/strong><\/h2>\n<p style=\"text-align: justify;\">Les causes de l\u2019espina b\u00edfida oculta i, conseq\u00fcentment, de la medul\u00b7la ancorada associada s\u00f3n el resultat del conjunt de <strong>factors gen\u00e8tics, factors ambientals i antecedents familiars<\/strong>. Aquests poden estar relacionats amb <strong>defectes del tub neural<\/strong> <strong>i<\/strong> <strong>defici\u00e8ncia de folat<\/strong>.<\/p>\n<p>En general, el <strong>tub neural<\/strong> es forma en les primeres etapes de l\u2019embar\u00e0s i es tanca al voltant del dia 28 despr\u00e9s de la concepci\u00f3. En els beb\u00e8s que tenen espina b\u00edfida, tamb\u00e9 lleu i oculta, una part del tub neural no es forma o no es tanca adequadament, la qual cosa produeix defectes en el desenvolupament espinal i\/o vertebral. Aquesta alteraci\u00f3 sol estar associada a la pres\u00e8ncia de <strong>nivells baixos d\u2019\u00e0cid f\u00f2lic<\/strong> durant l\u2019embar\u00e0s.<\/p>\n<hr \/>\n<h2><strong>Factors de risc<\/strong><\/h2>\n<p style=\"text-align: justify;\">Alguns factors predisposen a un major risc de formaci\u00f3 d\u2019espina b\u00edfida oculta:<\/p>\n<ul>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\"><strong>Sexe femen\u00ed<\/strong>: les dones es veuen afectades m\u00e9s sovint que els homes.<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\"><strong>Antecedents familiars<\/strong>: la tend\u00e8ncia a la medul\u00b7la ancorada per espina b\u00edfida oculta dep\u00e8n d\u2019una predisposici\u00f3 cong\u00e8nita, especialment relativa als defectes del tub neural.<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\"><strong>Defici\u00e8ncia de folat o altres agents metab\u00f2lics i ambientals:<\/strong> s\u00f3n altres factors que poden contribuir durant l\u2019embar\u00e0s de la mare als defectes del tub neural.<\/li>\n<\/ul>\n<hr \/>\n<h2><strong>Complicacions<\/strong><\/h2>\n<p style=\"text-align: justify;\">La primera complicaci\u00f3 de l\u2019espina b\u00edfida oculta \u00e9s la mateixa <strong>medul\u00b7la ancorada<\/strong> que aquella implica, que es pot desenvolupar progressivament.<br \/>\nLes complicacions que s\u2019observen en els pacients amb medul\u00b7la ancorada oculta poden ser:<\/p>\n<ul>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">Un lent i progressiu <strong>deteriorament neurol\u00f2gic<\/strong> afectant els esf\u00ednters, amb una debilitat <em>in crescendo<\/em> dels membres inferiors.<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">L\u2019augment del dolor, especialment lumbar, i de l\u2019afectaci\u00f3 sensorial de les extremitats inferiors, amb el conseg\u00fcent <strong>empitjorament de la qualitat de vida del malalt.<\/strong><\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\"><strong>Lesions medul\u00b7lars i patologies associades<\/strong>: a causa de la condici\u00f3 irreversible d\u2019alguns s\u00edmptomes provocats per la medul\u00b7la ancorada oculta, complicant-se aquestes condicions, poden presentar-se diversos diagn\u00f2stics associats urol\u00f2gics i ortop\u00e8dics.<\/li>\n<\/ul>\n<hr \/>\n<h2><strong>Tractament<\/strong><\/h2>\n<p style=\"text-align: justify;\">El <strong>tractament <\/strong>de la Medul\u00b7la ancorada oculta \u00e9s exclusivament <strong>neuroquir\u00fargic<\/strong>: una vegada detectat el nivell de l\u2019ancoratge, es procedeix a aplicar el m\u00e8tode quir\u00fargic m\u00e9s adequat per eliminar qualsevol adher\u00e8ncia de la medul\u00b7la espinal.<\/p>\n<p>La decisi\u00f3 de quan operar, amb quina t\u00e8cnica i a quin nivell dep\u00e8n de cada cas i del criteri del neurocirurgi\u00e0 amb cada pacient. Hi ha professionals que prefereixen esperar al fet que el malalt sigui simptom\u00e0tic o, fins i tot, estigui ja bastant afectat per la malaltia, mentre uns altres intervenen de forma preventiva a la simptomatologia neurol\u00f2gica, per evitar que aparegui, ja que pot ser irreversible.<\/p>\n<hr \/>\n<h2><strong>Resultats<\/strong><\/h2>\n<p style=\"text-align: justify;\">El nostre centre \u00e9s altament especialitzat en un diagn\u00f2stic que sovint es confon amb la Medul\u00b7la ancorada oculta, la <u>Malaltia del Filum<\/u> (MF).<\/p>\n<p>El <strong>m\u00e8tode Filum System<sup>\u00ae<\/sup> <\/strong>que apliquem en l\u2019ICSEB no nom\u00e9s preveu una t\u00e8cnica perfeccionada i m\u00ednimament invasiva per a casos de MF, sin\u00f3 tamb\u00e9 unes <strong>altres d\u2019alliberament medul\u00b7lar per a Medul\u00b7la ancorada oculta<\/strong>, que implica una intervenci\u00f3 diferent en cada cas; individualitzant i aplicant el m\u00e8tode neuroquir\u00fargic de desancoratge menys invasiu i m\u00e9s idoni i efica\u00e7 possible en cada pacient.<\/p>\n<p>Els resultats en el nostre servei s\u00f3n excel\u00b7lents en la seva majoria, amb un nombre de complicacions m\u00ednim: amb \u00edndexs de mortalitat i de complicacions neurol\u00f2giques nuls en un total de 83 intervencions quir\u00fargiques.<\/p>\n<hr \/>\n<h2><strong>Refer\u00e8ncies bibliogr\u00e0fiques<\/strong><\/h2>\n<ol>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">J1. Guerra LA, Pike J, Milks J, Barrowman N, Leonard M. Outcome in patients who underwent tethered cord release for occult spinal dysraphism. J Urol. 2006 Oct;176 (4 Pt 2):1729-32.<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">2. Hoffman HJ, Hendrick EB, Humphreys RP. \u201cThe Tethered Spinal Cord: its protean manifestations, diagnosis and surgical correction\u201d. Childs Brain. 1976;2(3):145-55.<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">Dr. Miguel B. Royo Salvador (1996), <a href=\"https:\/\/institutchiaribcn.com\/pdf\/publicaciones\/dr-royo\/Siringomielia-escoliosis-malformacion-Arnold_Chiari-idiopatica.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Siringomielia<\/strong>, <strong>escoliosis<\/strong> y malformaci\u00f3n de <strong>Arnold-Chiari<\/strong> idiop\u00e1ticas, etiolog\u00eda com\u00fan (PDF).<\/a> REV NEUROL (Barc); 24 (132): 937-959.<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">Dr. Miguel B. Royo Salvador (1996), <a href=\"https:\/\/institutchiaribcn.com\/pdf\/publicaciones\/dr-royo\/platibasia-impresion-basilar-retroceso-odontoideo.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Platibasia<\/strong>, impresi\u00f3n basilar, retroceso odontoideo y kinking del tronco cerebral, etiolog\u00eda com\u00fan con la <strong>siringomielia<\/strong>, <strong>escoliosis<\/strong> y <strong>malformaci\u00f3n de Arnold-Chiari<\/strong> idiop\u00e1ticas (PDF).<\/a> REV NEUROL (Barc); 24 (134): 1241-1250<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">Dr. Miguel B. Royo Salvador (1997), <a href=\"https:\/\/institutchiaribcn.com\/pdf\/publicaciones\/dr-royo\/Nuevo-tratamiento-sirignomielia-escoliosis-malformacion-Arnold_Chiari.pdf \" target=\"_blank\" rel=\"noopener noreferrer\">Nuevo tratamiento quir\u00fargico para la <strong>siringomielia<\/strong>, la <strong>escoliosis<\/strong>, la <strong>malformaci\u00f3n de Arnold-Chiari<\/strong>, el kinking del tronco cerebral, el retroceso odontoideo, la impresi\u00f3n basilar y la platibasia idiop\u00e1ticas (PDF).<\/a> REV NEUROL; 25 (140): 523-530<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">M. B. Royo-Salvador, J. Sol\u00e9-Llenas, J. M. Dom\u00e9nech, and R. Gonz\u00e1lez-Adrio, (2005) <a href=\"https:\/\/institutchiaribcn.com\/pdf\/publicaciones\/dr-royo\/results-filum-in-20-patients.pdf \" target=\"_blank\" rel=\"noopener noreferrer\">\u201cResults of the section of the <strong>filum terminale<\/strong> in 20 patients with <strong>syringomyelia<\/strong>, scoliosis and <strong>Chiari malformation<\/strong>\u201c.(PDF).<\/a> Acta Neurochir (Wien) 147: 515\u2013523.<\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">M. B. Royo-Salvador (2014), <a href=\"https:\/\/institutchiaribcn.com\/commons\/pdf\/publicaciones\/dr-royo\/filum-system-bibliography.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">\u201cFilum System<sup>\u00ae<\/sup> Bibliography\u201d (PDF).<\/a><\/li>\n<li style=\"font-size: 16px; font-weight: 300; text-align: justify;\">M. B. Royo-Salvador (2014), <a href=\"https:\/\/institutchiaribcn.com\/filum-system-guia-breve\/\" target=\"_blank\" rel=\"noopener noreferrer\">\u201cFilum System<sup>\u00ae<\/sup> Gu\u00eda Breve\u201d.<\/a><\/li>\n<\/ol>\n<hr \/>\n<p style=\"text-align: justify;\">Per entendre la difer\u00e8ncia entre els diagn\u00f2stics de <strong>Medul\u00b7la Ancorada per espina b\u00edfida oculta<u>, <a href=\"https:\/\/institutchiaribcn.com\/ca\/espina-bifida\/\" target=\"_blank\" rel=\"noopener noreferrer\">Medul\u00b7la Ancorada per espina b\u00edfida<\/a><\/u><\/strong> i <strong><u><a href=\"https:\/\/institutchiaribcn.com\/ca\/malalties\/malaltia-del-filum\/\" target=\"_blank\" rel=\"noopener noreferrer\">el de Malaltia del Filum<\/a> <\/u><\/strong><\/p>\n<div class=\"container visible-sm visible-xs\">\n<div class=\"embed-responsive embed-responsive-16by9\"><iframe src=\"https:\/\/www.youtube.com\/embed\/7jxxCZV95iI\" width=\"510\" height=\"650\" frameborder=\"0\" 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