The investigation object: pelvic bone, foramen obturatorium, canalis obturatorius, neurovascular fascicles. The investigation goal Examination of anatomical mutability and sexual peculiarities of foramen obturatorium, canalis and its elements for prognosing of canales obturatorius hermias forming. Methods of research: : anatomical (descriptive and comparative, morphometric, dissection on cadaver material); registration (photo documentation, sketch, construction of generalized tables), statistical. Theoretical and practical value of the obtained results. Scientific novelty of the obtained results: the definition method of leaving place projection of canales obturatorius hernia according pelvis osseous reference points was proposed. Probability prediction criteria for forming of conoles obturatorius hernia were offered. The improved method of nerve obturatorius blockade implementation for practical using in urgent surgery was also proposed. Methods of drainage of prevesical adipose tissue spatia via foramen obturatorium were updated. Scientific novelty of the results: It was established, that the form and the size of foramen obturatorium and sulcus obturatorium depends on sex and pelvis type. The forms of foramen obturatorium according to pelvis type (female or male)were isolated for the first time. It was established, that the area, longitudinal and transversal sizes of foramen obturatorium were bigger in female pelvis type. The two extreme forms of sulcos obturatorius structure were defined for the first time. Narrow deep form was typical for male pelvis type and the wide shallow one - for female one. It was detected, that in female pelvis type the length, width and depth of sulcus obturatorius were bigger on the right side, that can be one of the anatomical conditions for canalis obturatorius hernia formation. It was established, that in male pelvis type more pointed borders of sulcos obturatorius were observed in most cases, in female pelvis type they were rounded. Leaving place projection of canales obturatorius hernia according pelvis osseous reference points was calculated for the first time. On damp preparations two forms of canalis obturatorius external opening structure were isolated. Fissure-like form was characteristic for male pelvis type, oval one - for female one. It was established, that the size of canalis obturatorius external opening depended on the width of sulcus obturatories and mobility of membrana obturatoria upper part. Both paramenters prevailed in female pelvis type. Two variations of canalis obturatorius neuro vascolar fascicles structure - trunk and extended - were revealed. Extended form of structure was often met in nerve and venac obturatoria, for the artery trunk structure was more characteristic. For the first time, six variations of neuro vascular fascicles canalis obturatorius elements location were singled out. It was established, that among three elements of neuro vascular fascecles canalis obturatorius nerve and vena showed maximal topographic constancy, obturator artery showed the least one. The degree of implementation: Research results are introduced into the curriculum and sceinteifc - research work on the departments of anatomy, operative surgery and topographic anatomy, surgery with bases of thoracal, cardiovascular and plastic surgery of State Establishment «Lugansk State Medical University», the department of anatomy, human and animal physiology of Luhansk Taras Shevchenko National University, the department of normal anatomy, operative surgery and topographic anatomy of Crimea State Medical University named after S. I. Georgievsky, surgery department of Lugansk city clinics № 1.
