Comunicaci車n Masiva del Ramo Superficial del Nervio Radial con el Nervio Cut芍neo Antebraquial Lateral, un An芍lisis Morfom谷trico. 1+1 ≒ 2 Massive Communication Between the Superficial Branch of Radial Nerve and the Lateral Cutaneous Nerve of the Forearm, a Morphometric Study. 1+1 ≒ 2

作者：Guillermo Salgado A; Martin Inzunza A; Claudio Cruzat C; Oscar Inzunza H

来源：International Journal of Morphology, 2012.

• Nervio radial
• Nervio cutaneo-lateral antebraquial
• Morfometria
• Fasciculo
• Variacion anatomica
• Radial nerve
• Lateral cutaneous nerve of the forearm
• Fascicle
• Morphometry

La distribuci車n de los ramos nerviosos sensitivos en el borde lateral y en el dorso de la mano han sido descritos con mayor exactitud en las 迆ltimas d谷cadas, debido al avance de nuevas t谷cnicas de diagn車stico, las cuales han permitido detectar que alrededor del 40% de la poblaci車n examinada presenta alg迆n grado de variaci車n anat車mica en el territorio de distribuci車n de los nervios involucrados. Conocer el n迆mero de fibras que componen un ramo nervioso cut芍neo de la regi車n de la mano, ha adquirido mayor relevancia con el desarrollo de t谷cnicas de microcirug赤a y de ultrasonograf赤a, procedimientos que han demostrado la utilidad de este conocimiento en el diagn車stico y tratamiento de las lesiones nerviosas. As赤, la arquitectura fascicular, el 芍rea adiposa y el 芍rea vascular de un ramo nervioso determinado constituyen datos que se ha demostrado se modifican con la edad y, en consecuencia, van condicionar la conducta terap谷utica y el pron車stico de las lesiones nerviosas. En este caso presentamos una variaci車n anat車mica bilateral extremadamente rara, que involucra al ramo superficial del nervio radial y al nervio cut芍neo lateral antebraquial; situaci車n que aparece descrita en la literatura especializada s車lo una vez y que modifica notablemente la inervaci車n sensitiva del borde radial de la mano. The distribution of sensory nerve branches in the lateral and the back of the hand have been described more accurately in recent decades due to advances in new diagnostic techniques, which have identified that about 40% of the population examined have some degree of anatomical variation in the distribution area of the sensitive nerves involved. The knowledge of the number of fibers forming a sensitive nerve of the hand has become more important with the development of microsurgical techniques and ultrasonography; procedures that have demonstrated the usefulness of this information in the diagnosis and treatment of nerve injuries. Thus, the fascicular architecture, adipose tissue area and the vascular area of a nerve branch, data that has been demonstrated that change with age, will determine the therapeutic and prognosis of nerve injuries. In this case we present an extremely rare and bilateral anatomical variation, involving the superficial branch of radial nerve and the lateral antebrachial cutaneous nerve, a situation that is described in the literature only once and which notably alter the sensory innervations of the radial edge of the hand.