Histological study of tendon healing in malnourished Wistar rats treated with ultrasound therapy

• Autor(a) principal: Carvalho,Paulo de Tarso Camillo de
• Data de Publicação: 2006
• Outros Autores: Silva,Iandara Schettert, Reis,Filipe Abdalla dos, Belchior,Ana Carulina Guimarães, Aydos,Ricardo Dutra, Facco,Gilberto Gonçalves, Dourado,Doroty Mesquita
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta Cirúrgica Brasileira (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502006001000004
• topic: Ultrasonics; Malnutrition; Tendon Injury

PURPOSE: To investigate the effects of therapeutic ultrasound on the healing of tendon injuries in malnourished rats. METHODS: After the intended nutritional states had been attained, the animals (N=36) were distributed into three groups, named: G1(N=12), control group; G2(N=12), malnourished rats treated with 3 MHz ultrasound at an intensity of 0.5 W/cm²; and G3 (N=12), normal animals treated with 3 MHz at 0.5 W/cm². The injuries were induced by means of an operation to expose the heel tendon and crush it using Allis forceps. RESULTS: The data obtained relating to leukocyte counts, fibroblasts, vessel neoformation, fibrosis and collagen were subjected to statistical treatment using analysis of variance (ANOVA) and Student's t test. Results of p < 0.05 were obtained for fibrosis and collagen. CONCLUSION: The ultrasound was shown to be effective in repairing the tendon, even in malnourished animals whose healing process was retarded.