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FutureStarrQue Es Le Medula Espinal Resumen OOR
La medula espinal es el órgido encargado de regular el paso de la información desde soma superiores hasta áreas perifericas vez de la misma medula espinal recibe el líquido cefalorraquídeo, en la que se encuentra asociado un cierto líquido gris, verde o blanco, ambos con numeros
Tethered spinal cord syndrome (MA) includes a group of pathological conditions that determine that the conus medullaris was in an unusually lower level and fixed, in a relative state of immobility. Confusing anatomo-surgical conditions are regularly found when surgeries of lumbar and sacral spinal disraphic injuries are on course. In some cases, roots are enclosed by the arachnoid, simulating a thick filum terminale; in other cases, the transition between a functional but structurally distorted conus and a lipoma of the filum may not be clear: neurological function may be at risk in case of section procedures solely using morphological criteria. This leads not only to an increase of morbility, but also to the permanence of the pathologic disorder. Surgery –using a neurophysiologic intrasurgical record– of myotomes of sacral and lumbar roots before the section of the tether process, filum terminale or other, enables to distinguish neurologic structures (roots or conus medullaris) from non-functional structures (as filum terminale) or other pathologic processes (lipoma, etc.) and preserve the neurologic structures. A clinical case of a 9 year-old child that carries the disease since birth is presented. She underwent surgery –using a neurophysiologic intrasurgical record– by which symptomatology was partially reverted back.
The spinal cord is the organ responsible for regulating the passage of information from higher centers to peripheral areas, and is responsible for the immediate response, through the reflex arcs that will respond to different stimuli many times harmful, to thus contributing to homeostasis. Embryologically the nervous system is formed in the 3rd week of intrauterine life from the invaginated ectoderm that will give rise to Neuroepithelium, thus forming the neural tube and this to all the organs of the nervous system. The spinal cord is described as a hollow, elongated cylindrical organ from which the 31 pairs of spinal nerves arise, theoretically segmented into cervical, dorsal, lumbar and sacral, and internally we find the gray substance and white substance in which they are found the nuclei or cell groups and the ascending and descending tracts respectively, which collect sensitive information and carry motor impulses. The spinal cord is lodged and protected externally by the spinal column, through which the spinal nerves emerge to innervate the upper and lower limbs, trunk and pelvis; and internally it is covered by the meninges and the cerebrospinal fluid that nourish it and constitute a buffering barrier. Spinal cord alterations may occur in the formation of the neural tube or may be acquired during intrinsic growth, or extrinsic as trauma, spinal cord injuries have detrimental effects on sensibility and motor, as well as injury to the cords or tracts is characterized by loss of sensitivity to touch or temperature and loss of motor function. The amount of area affected will indicate to which segmental level the lesion occurred, observing quadriplegia, paraplegia, etc. The prevention, diagnosis and timely treatment of spinal cord injuries will avoid devastating consequences in the life of the individual (Source: repositorio.uigv.edu.pe)