The experimental study of scoliosis in bipedal rat in lathyrism
- 1 January 1982
- journal article
- research article
- Published by Springer Nature in Archives of orthopaedic and trauma surgery
- Vol. 101 (1) , 1-27
- https://doi.org/10.1007/bf00455654
Abstract
Using Wister albino rats, bipedal rats were prepared; to which semicarbazide at a concentration of 0.075%, 0.05% and 0.025% were given as drinking water and the rats were divided into three groups A, B and C according to such concentrations. Osteolathyrism was caused in this way and the relations between doses as well as the dosing period and the progress of scoliosis were examined roentgenologically and histologically and the following conclusions were obtained. The frequency of occurrence of scoliosis was 82% in the bipedal rats and 13% in the quadrupedal rats (level of significance α=0.001% or less). Primordial top vertebrae were located concentratively in the lower 1/3 of thoracic vertebra. In the primordial curve, those cases showing a right side curve accounted for 76%. After termination of administration of semicarbazide, spontanneous improvement took place only in those cases showing scoliosis of less than 40°. In the author's experimental scoliosis, the static and dynamic condition of posture nearly coincided with those of men in clinical studies. Histological changes were especially marked in the cartilage layer on the vertebral epiphyseal line, being quite diversified. Wister-Albino-Ratten, die bipedal präpariert wurden, ist Trinkwasser verabreicht worden, welches Semikarbazid in einer Konzentration von jeweils 0,075, 0,05 und 0,025% enthielt. Entsprechend diesen Konzentrationen wurden die Versuchstiere in die Gruppen A, B und C aufgeteilt. Auf these Weise wurde ein Osteolathyrismus hergestellt, und in Abhängigkeit von der Dosis und der Verabreichungsdauer wurde das Fortschreiten der Skoliose röntgenologisch und histologisch untersucht. Folgende Erkenntnisse wurden gewonnen: Die Häufigkeit der Skoliose betrug bei den bipedalen Ratten 82% und bei den quadrupedalen Batten 13% (das Signifikanzniveau α=0,001% oder niedriger). Der Krümmungsscheitel lag im unteren Drittel der Brustwirbelsdule. Die Primärkrümmung war in 76% rechtskonvex. Nach Beendigung der Semikarbazid-Verabreichung trat eine Spontanbesserung nur in den Fällen auf, die einen skoliotischen Krümmungswinkel von weniger als 40° aufwiesen. Bei den experimentellen Skoliosen stimmten die statischdynamischen Haltungsverhältnisse nahezu vollständig mit denen beim Menschen überein. Die histologischen Veränderungen waren besonders auffallend und mannigfaltig in den Epiphysenknorpeln der Wirbel.This publication has 23 references indexed in Scilit:
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