Saratov JOURNAL of Medical and Scientific Research

variability

Variability and connections of parameters characterizing hip dysplasia in 4-7-year-old children

Year: 2019, volume 15 Issue: №1 Pages: 61-66
Heading: Traumatology and Orthopedics Article type: Original article
Authors: Zotkin V.V., Anisimova Е.А., Bakhteeva N.Kh., Anisimov D.l.
Organization: Saratov State Medical University
Summary:

Objective: to identify the variability and contingency of parameters characterizing the structure of the hip joint in children 4-7 years of age, among themselves and with the severity of dysplastic changes in the bone and soft tissue structures of the hip joint. Material and Methods. 132 children aged 4-7 years with dysplasia TBS with different degrees of severity of dysplastic changes (177 joints) were examined. The following characteristics of dysplasia joint were under the study: angular radiological parameters, cartilage defect, electroneuromyographic signs, indicators of the biomechanics of gait. The degree of dysplasia (mild, moderate, severe) was assessed by the method developed by the authors to determine the severity of hip dysplastic changes in points. Results. Light changes in the hip joint were diagnosed in 9 patients aged 4-7 years (15 joints); moderate dysplastic disorders were found in 74 patients (96 joints); pronounced signs of dysplasia were found in 49 patients (66 joints). The coefficient of variation of signs characterizing TDS dysplasia varies from 2.8 to 18.8%. The module of correlation coefficients characterizing the binding force of the studied features is in the range from 0.7 to 0.9. Conclusion. The angular radiological parameters, cartilage defect, electroneuromyographic signs, indicators of the biomechanics of gait characterized by considerable variability and are correlated with strong and close power among themselves and with the degree of dysplastic changes of the bone and soft tissue structures of TBS.

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Morphometric characteristics of the forearm bones in subjects of childhood, adolescence and early adulthood

Year: 2015, volume 11 Issue: №3 Pages: 249-254
Heading: Macro- and Micromorphology Article type: Original article
Authors: Popov A.N., Anisimova Е.А., Anisimov D.l., Popryga D.V., Kesov L.A., Kesov A.L.
Organization: Saratov Regional Clinical Hospital, Saratov State Medical University
Summary:

Objective: to identify patterns of typology, age and variability of bilateral forearm bones in children, adolescents and young adults. Material and methods. The method of direct linear osteometry determined length (maximum length) and circumference (maximum circumference of the diaphysis) size of the bones of the forearm. Calculated thickness-length index as a percentage of the maximum circumference of the diaphysis to the greatest length of the bone. Results. The age characteristics of greatest length, the greatest circumference of the diaphysis and thickness-length index, as well as communication with the studied parameters of body length. Conclusion. The largest relative increase in the parameters identified in the second childhood and adolescence. Thickness-length index with age decreases slightly from 16,82 to 15.28% in the ulna (9%) and from 20,26 to 19,24% at the radius (5%). A direct close and substantial connection between the length and circumference of the bone and medium-reverse thickness-length index of forearm bones with age and body length.

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Variability of morphometric parameters of feet in various forms of lower extremities

Year: 2014, volume 10 Issue: №4 Pages: 600-603
Heading: Macro- and Micromorphology Article type: Original article
Authors: Konnova O.V., Aleshkina O.Yu.l, Nikolenko V.N.
Organization: First Moscow State Medical University n.a. I.M. Sechenov, Saratov State Medical University
Summary:

Purpose: to identify the various forms of lower extremities variability of linear and angular parameters of feet in girls aged 17-19 years. Material and Methods. The object of the study included 242 students from Saratov State Medical University, 17—19 years. Foot digital plantography photometric device-software complex «Plantvizor» and measuring distances between sibling points of lower extremities to highlight their forms have been used as a method of research. Results. 8 forms of lower extremities, among which half per cent occurs in isolated form, valgus-direct from the mil-lennim clearance opening and a trapezoidal shape of lower extremities varus. In all forms of lower extremities morphometric parameters of feet and ratio of statistically significant differences in various forms of lower extremities have been studied. Conclusion. Anatomical basis for operational adjustment of axial disorders of tibiae and its influence on morphofunctional state of foot can be resulted from the study.

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Anterior cerebral artery variants according to individually-typological and combined variabilities of its morphological and biomechanical features

Year: 2013, volume 9 Issue: №1 Pages: 28-33
Heading: Macro- and Micromorphology Article type: Original article
Authors: Fomkina О.A., Nikolenko V.N.
Organization: First Moscow State Medical University n.a. I.M. Sechenov, Saratov State Medical University
Summary:

The purpose of the article is to define variants of anterior cerebral artery (АСА) of adults depending on typological and combined variability of its morphological and biomechanical features. Material and methods: The research has included 228 samples of anterior cerebral arteries, 115 corpses of people aged 21-84 years received on autopsy. The following points have been under the research: external and internal diameters, wall thickness, general strength, strength range, absolute and relative deformation of an artery. Results: According to the studied parameters 3 groups of variants of arteries have been allocated: with average size of a sign (M±s), with lesser size of a sign ( M + s). Combined variability of morphological and biomechanical features of АСА has been presented. Conclusion: АСА groups with higher variability, especially at men, have been observed in 2,2-2,6 times more often, than at women. As exception, thin-walled АСА which in 1,7 times more often taped at women have been considered. It has been revealed that subjects of alternative group III in 1,2-1,7 times older than those of alternative group I of arteries. Age of subjects who have been classified according to biomechanical parameters of АСА wall has been approximately identical (r=0,28-0,51). The experimentally received data about morphological, deforming and strengthening features may be of great value in studying of blood flow modeling and in optimization of intravascular interventions on cerebral arteries.

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Topographic and anatomical variability of nutrient canal and nutrient foramina of shin bones

Year: 2013, volume 9 Issue: №1 Pages: 13-17
Heading: Macro- and Micromorphology Article type: Original article
Authors: Anisimova Е.А., Popryga D.V., Popov A.N., Anisimov D.I., Chupakhin N.V.
Organization: Saratov State Medical University
Summary:

The purpose of the work is to define the location and the direction of nutrient canal of diaphysis and zone of concentration of nutrient foramina of shin bones. Material and methods: Parameters of tibia and fibula (n=208) of adults aged from 22 to 89 years (118 men and 90 women) have been studied. Results: The phenomena of individual and age variability, sexual dimorphism and bilateral dissymmetry of the position and the direction of nutrient canal and zones of concentration of nutrient foramina of tibia and fibula have been investigated. The distance of nutrient foramen at various types of shin bones has been defined. Conclusion: Position and direction of nutrient canal of diaphyses of shin bones differ in varioust bone types.

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Individual typological variability of macro-microscopical and biomechanical properties of intracranial part of vertebral artery

Year: 2012, volume 8 Issue: №4 Pages: 894-899
Heading: Macro- and Micromorphology Article type: Original article
Authors: Nikolenko V.N., Fomkina О.A.
Organization: First Moscow State Medical University n.a. I.M. Sechenov, Saratov State Medical University
Summary:

The purpose of the study is to reveal the features of individual typological variability of macro-microscopical and biomechanical properties of the wall of intracranial part of vertebral arteries (IPVA) in adult people. Materials and methods: The research material of 228 samples of IPVA has been received by autopsy of 115 corpses of people aged 21-84 years. External diameter, thickness of the wall, diameter of lumen of artery have been measured. Biomechanical properties of IPVA have been studied by explosive carTira Test 28005 with a loading cell of 100 H. General strength (H), breaking point (H/mm2), Young»s modulus (H/mm2), absolute (mm) and relative deformation (%) of samples of arteries have been defined. Results: 3 groups of variants of arteries have been isolated: with average size of a sign (M±y), less than the average size (<M — y) and more than the average size (>M+ y). The conclusion: The obtained data about functional anatomy of vascular bed of brain may be useful in blood flow modeling and optimization of extra — and intravascular interventions.

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Topographic and anatomic features of transverse foramen of cervical vertebra in age and sex aspect

Year: 2012, volume 8 Issue: №2 Pages: 177-181
Heading: Macro- and Micromorphology Article type: Original article
Authors: Anisimov D.I., Norkin I.A., Nikolenko V.N., Anisimova E.A., Aleshkina О.Yu., Ostrovsky V.V.
Organization: Saratov State Medical University, Saratov Scientific Research Institute of Traumatology and Orthopedics, First Moscow State Medical University n.a. I.M. Sechenov
Summary:

Purpose: to reveal regularities of variability of morphometric parameters of foramen of transverse process of cervical vertebra. Materials and Methods. Method of osteometry was used to determine size of transverse process of cervical vertebra at 112 adult skeletons. Results. Sexual dimorphism of size of transverse process of cervical vertebra, topographic variability of size, form and foramen orientations were revealed. Conclusion. Foramen size prevail at men over women by 0,5-1,5 mm and has characteristic of fluctuating dissymmetry

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REGIONAL SRECIFICS PERIOD ERUPTION PERMANENT CENTRAL INCISORS AND FIRST MOLARS IN IZHEVSK

Year: 2006, volume 2 Issue: №2 Pages: 13-17
Heading: Stomatology Article type: Original article
Authors: Vatlin A.G.
Organization: Igevsk State Medical Academy
Summary:

Studied period and rages of eruption constant central incisors and first molars beside examined 549 children in Izhevsk at an age from 4 before 9 ears. Conducted benchmark analysis of tinning results with similar literary given other regions S.I.S. Swept away that given on other regions, tinned in the most close time cell to our period of studies in many coincide.

Keywords: variability