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Analysis of the stress and strain in hip joint of the children with adductors spasticity due to cerebral palsy

100%

Piszczatowski S.

Acta of Bioengineering and Biomechanics

2008

tom Vol. 10, nr 2

51-56

Mechanical factors have a strong influence on the development of the musculoskeletal system. Muscle forces are one of the most important sources of the loadings acting on the bone elements and any disturbances in their activity can lead to severe pathology. Cerebral palsy is an example of such a situation and hip joint deformity, leading to its dislocation, is one of the most serious complications accompanied with muscle spasticity. The aim of the study is to perform an analysis of the stress and strain in hip joint of the children with the imbalance in muscle forces due to adductors spasticity (overactivity). Finite element model has been developed based on anatomical data obtained from computer tomography. The results of numerical simulations show an increase in stress and strain occurring in the femoral head and acetabulum as well as some relocation of its concentration zone in the medial direction.

Dens invagination and root dilaceration in double multilobed mesiodentes in 14-year-old patient with anorexia nervosa

38%

Baginska J. , Rodakowska E. , Piszczatowski S. , Kierklo A. , Duraj E. , Konstantynowicz J.

2017

tom 76

nr 1

This paper describes a rare case of erupted double supernumerary teeth with unusual morphology in a 14-year-old patient with an eating disorder. The coexistence of dental morphological anomalies: multilobed mesiodens, multiple dens in dente of different types and root dilaceration have not been previously reported. The paper highlights anatomical and radiological aspects of dental abnormalities and clinical implications of delayed treatment. (Folia Morphol 2017; 76, 1: 128–133)