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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

SOL, Mariano del; VASCONCELLOS, Adriana; PARRA, Roxana  and  VASQUEZ, Bélgica. Morphometry of the Tibial and Plantar Nerves. Int. J. Morphol. [online]. 2005, vol.23, n.4, pp.399-404. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022005000400020.

Motor innervations of foot muscles and anatomic variations are very important for the correct diagnose of the lesions of peripheral nerves and their afterward treatment. Frequently, the foot is affected by accidents and reparatory microsurgery, which requires abundant and detailed anatomic information to be able to carry out successfully all necessary procedures. Lack of morphometric and stereological facts of the nerves of foot muscles, motivated us to execute this research. Here, five adult corpse feet were studied, where the tibial termination nerves, the origin of the medial and lateral plantar nerves. With transversal histological cuts of plantar and tibial nerves, quantitative information was obtained on morphometric measures (fascicule numbers, fascicule areas, number of fibers per fascicule, number of fibers per nerve). The obtained results were statistically analyzed and the most representative samples, photographically registered. The number of fascicules in the tibiae nerve varied between 19 to 39, with an average of 28.6 (D.S. 7.13), in the lateral plantar nerves it varied between 8 to 18, with an average of 14,8 (D.S. 3.96) and in the medial plantar nerves, it varied between 9 to 19, with an average of 12,4 (D.S. 3,91). The average area of the fascicules, in the tibia, medial plantar and plantar lateral nerves, was 3,66mm2, 1,8mm2 and 1,48 mm2. With the obtained data, it is expected to contribute to morphological and morphometric knowledge of foot nerve structure, which can be used for anatomicsustain, as well as chirurgic support

Keywords : Tibial nerve; Medial plantar nerve; Lateral plantar nerve; Morphometry.

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