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1.
Arq. neuropsiquiatr ; 67(2a): 262-264, June 2009. ilus
Article in English | LILACS | ID: lil-517038

ABSTRACT

There is substantial controversy in literature about human dermatomes. In this work, C5 and C6 superior limb dermatomes were studied. The method consisted of comparing clinical signs and symptoms with conduction studies, electromyographical data, neurosurgical findings, and imaging findings obtained by computerized tomography (CT) or magnetic resonance imaging (MRI), for each patient. Data analysis from superior members in 18 patients suggests that C5 is located in the lateral aspect of the shoulder and arm, and C6 in the lateral aspect of the forearm and 1st, 2nd, and 3rd fingers. To our knowledge this is the first time that C5 and C6 human dermatomes have been studied by all the following methods together: clinical, electromyographical, CT and MR imaging, and surgical findings.


Há controvérsias na literatura sobre os dermátomos humanos. Neste estudo os dermátomos do membro superior C5 e C6 foram analisados. O método consistiu em comparar os sinais e sintomas com achados eletromiográficos, de imagem e achados cirúrgicos. Análise dos dados do membro superior de 18 pacientes sugere que o dermátomo C5 esteja localizado na região lateral do ombro e braço, e o dermátomo C6 na região lateral do antebraço e 1º, 2º e 3º dedos da mão. Este é o primeiro estudo em que os dermátomos C5 e C6 foram avaliados pelos dados clínicos, eletromiográficos, de imagem e achados cirúrgicos.


Subject(s)
Humans , Arm/innervation , Peripheral Nerves/physiopathology , Electromyography , Magnetic Resonance Imaging , Radiculopathy/physiopathology , Radiculopathy/surgery , Tomography, X-Ray Computed
2.
Arq. neuropsiquiatr ; 67(2a): 265-267, June 2009. ilus, tab
Article in English | LILACS | ID: lil-517039

ABSTRACT

There is substantial controversy in literature about human dermatomes. We studied L4, L5, and S1 inferior limb dermatomes by comparing clinical signs and symptoms with conduction studies, electromyographical data, neurosurgical findings, and imaging data from computerized tomography (CT) or magnetic resonance imaging (MRI). After analyzing 60 patients, we concluded that L4 is probably located in the medial aspect of the leg, L5 in the lateral aspect of the leg and foot dorsus, and S1 in the posterior aspect of the backside, tight, leg and plantar foot skin. This is the first time that these human dermatomes have been evaluated by combined analysis of clinical, electromyographical, neurosurgical, and imaging data.


Há controvérsia na literatura sobre os dermátomos humanos. Estudamos dermátomos do membro inferior comparando sinais e sintomas com estudos eletromiográficos, de imagem e achados cirúrgicos. Analisando 60 pacientes, concluímos que o dermátomo L4 provavelmente está localizado na região medial da perna, o dermátomo L5 na região lateral da perna e dorso do pé, e o dermátomo S1 na nádega, região posterior da coxa e da perna e na região plantar. Este é o primeiro estudo que os dermátomos do membro inferior foram analisados através de dados clínicos, eletromiográficos, imagem e achados cirúrgicos.


Subject(s)
Humans , Leg/innervation , Peripheral Nerves/physiopathology , Buttocks/innervation , Electromyography , Magnetic Resonance Imaging , Radiculopathy/physiopathology , Radiculopathy/surgery , Tomography, X-Ray Computed
3.
Rev. neurol. Argent ; 16(4): 161-5, 1991. ilus, tab
Article in Spanish | LILACS | ID: lil-105715

ABSTRACT

Se llevó a cabo el estudio de potenciales evocados dermatómicos en 14 pacientes con afectación probada de raíces L5 o S1 o ambas unilateralmente. El estímulo se produjo en el área de piel correspondiente a la metamera deseada y el registro se efectuó en la corteza parietal de recepción contralateral. Los resultados fueron comparados con un grupo control sano, se observó que la técnica fue capaz de identificar a la lesión a través de dos tipos de hallazgos, uno fue el retraso en la latencia de la onda N1 y el segundo la ausencia de respuesta evocada


Subject(s)
Radiculopathy/diagnosis , Low Back Pain/diagnosis , Evoked Potentials, Somatosensory , Electrodiagnosis/methods , Radiculopathy/physiopathology , Spinal Nerve Roots/physiology , Spinal Nerve Roots/pathology , Sciatica/diagnosis , Electrodiagnosis/instrumentation , Electrophysiology , Reaction Time
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