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Post a Comment Violation of vertical balance of the body in children with one-sided high riding trochanter
- Authors: Nikityuk I.E.1, Bortulev P.I.2, Vissarionov S.V.2
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Affiliations:
- H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery
- H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery
- Issue: Vol 40, No 4 (2023)
- Pages: 5-15
- Section: Original studies
- URL: https://journal-vniispk.ru/PMJ/article/view/144142
- DOI: https://doi.org/10.17816/pmj4045-15
- ID: 144142
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Abstract
Objective. To study the postural balance disorders in children with a one-sided high riding trochanter, depending on the direction of displacement of the general center of pressure (COP) of the body in the frontal plane.
Material and methods. A two-platform stabilometric study of 16 patients aged 11 to 16 years (M ± m = 13.1 ± 0.76) with a one-sided high riding trochanter of the femur was conducted. The children were divided into two groups: group I – 6 patients with a shift of the general COP towards the affected lower limb (33[19 – 42] mm), group II – 10 patients with a displacement of the general COP towards the intact lower limb (17 [8–36] mm). The control group included 16 healthy children of the same age.
Results. Depending on the displacement of the general COP towards the affected or intact lower limb, different values and ratios of stabilometric parameters were observed in patients of both groups individually under each of the contralateral lower limbs. The most pronounced asymmetry of the indicators of the postural balance of the lower extremities compared with the norm was revealed in the second group of patients. Among them, the median difference of sagittal displacement of the COP between the contralateral limbs DY was 45 mm, while in patients of the first group, the median DY was 7 mm. The medians of angular velocities Ω between the lower extremities were correlated as 36 to 23 degrees/s in the second group compared with 27 to 29 degrees/s in the first. Also, in patients of the second group, the highest indicator of excessive quartile deviation of the angle of the direction of oscillations of the vector diagrams α on the affected lower limb was revealed – 62° compared with the intact 11°.
Conclusions. Significant asymmetry of postural balance indicators in patients of the second group may be due to compensatory reactions of the body to prevent gross destabilization of the entire postural control system, therefore, such an imbalance corresponds to an adequate postural strategy.
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##article.viewOnOriginalSite##About the authors
Igor E. Nikityuk
H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery
Email: femtotech@mail.ru
Pavel I. Bortulev
H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery
Email: pavel.bortulev@yandex.ru
Candidate of Medical Sciences, Head of the Department of Hip Joint Pathology
Russian Federation, Saint-PetersburgSergey V. Vissarionov
H. Turner National Medical Research Center for Children’s Orthopedics and Trauma Surgery
Author for correspondence.
Email: turner01@mail.ru
MD, PhD, Professor, Correspondent Member of RAS, Director
Russian Federation, Saint-PetersburgReferences
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