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Experimental biomechanical assessment of plate stabilizers for treatment of pectus excavatum

Kajzer A., Kajzer W., Gzik-Zroska B., Wolański W., Janicka I., Dzielicki J.

Acta of Bioengineering and Biomechanics

2013

Vol. 15, no. 3

113--121

The paper discusses results of experimental research involving new generation of plate stabilizers used for the treatment of deformation of the front chest wall. Previous clinical monitoring revealed instances of minimal rotation, which caused destabilization of the anastomosis and pain in patients. In order to prevent this, transverse stabilizing plates were introduced to the structure of the stabilizer. The new structure of stabilizers was tested using two specially prepared research posts: 1 – which enables fastening of the plate stabilizers to a platform simulating human ribs, 2 – using a pig chest, to which plates were fastened according to the stabilization conditions in the stabilizer–chest structure. The tests recorded displacement values in selected areas of the plates in response to applied loading forces.

Telemetric and Holter measurement systems aiding lengthening of limbs with the use of external stabilizers

Kulig M.

Acta of Bioengineering and Biomechanics

2005

Vol. 7, nr 1

103-113

This paper describes the use of Holter (marked HSP) and Telemetric (marked TSP) measurement systems used for monitoring of deformations in an Ilizarov-type stabilizer in clinical conditions. Measurement data is constantly transmitted to a stationary receiver unit via a radio link for TSP and via a periodic cable link for HSP. The article presents the use of the above-mentioned measurement systems supporting treatment by means of identifying problems and clinical difficulties, constructing biomechanical characteristics, it also aids the Clinical Control Program and other supporting applications.

Charakterystyka biomechaniczna systemu stabilizacyjno-manipulacyjnego Polfix

Marciniak J., Paszenda Z., Ziębowicz A., Kaczmarek M., Szewczenko J., Cieplak J.

Zeszyty Naukowe Katedry Mechaniki Stosowanej / Politechnika Śląska

1998

z. 7

219-224

Przedmiotem pracy jest wyznaczenie charakterystyk biomechanicznych najczęściej stosowanych modyfikacji system u stabilizacyjno-manipulacyjneg o POLFIX. Charakterystyki wyznaczono na modelach złamań kości piszczelowej zespolonych wariantowo: aparatem kompresyjno-dystrakcyjnym KoD , stabilizatoram i zwykłym i połączonymi płytą łączącą prostą, stabilizatoram i asymetrycznym i połączonym i płytą łączącą wygiętą w zespoleniach dwu i trójpoziomowych . Wynik i badań stanowią podstawę do optymalizacj i cech geometrycznych elementów stabilizatorów.

The aim of the project was to determine the bio-mechanical characteristics of the modifications of the POLFIX fixation-manipulation system employed most often. The characteristics were determined using models of the tibial bone fracture joined i n several variants: with the KoD compression-distraction apparatus, with ordinary fixators joined with the straight joining plate, with the asymmetric fixators joined with the bent joining plate in the two - and three-level osteosynthesis . Results o f the investigation yield the basis for optimisation of the geometrical features of the fixator.