Large wounds are characterized by clinical and surgical challenges, requiring numerous searches on demand for inexpensive biocompatible materials that produce the best quality of cutaneous healing. Cellulose is a biopolymer of greatest abundance, good biocompatibility and wide application due to its chemical and physical properties. This study was aimed to develop and characterize low cost membranes of wood cellulose nanofibrils for potential

No abstract

Forma de tratamento alternativa para tratamento de fendas palatinas.Obturador palatino apresenta eficiência na oclusão e redução dos sintomas de fendas palatinas. O obturador palatino apresenta eficiência no tratamento de fendas palatinas em felinos.

The effects of two vibration platform (VP) exercise protocols on stifle and rectal temperatures were evaluated. Eleven animals participated in two exercise protocols, different in duration in each exercise. Exercise protocol 1 (EP1) took 30 seconds and EP2, 60 seconds, with different vibratory levels in both cases (L1 = acceleration ≅ 1g, L4 = acceleration ≅ 2.5g, and L7 = acceleration ≅ 5g). The animals were evaluated before and 1 minute after the exercise, using infrared thermography to obtain stifle temperatures. The rectal temperature (RT) was also checked at each moment. The dogs had higher stifle temperatures in EP1 at all vibratory levels compared to the time before the exercise; EP2 resulted in higher temperature only at maximum vibration intensity (L7). Increase in TR was observed only in EP2. The results suggested that the short duration protocol (EP1) increased the muscular and peripheral vascular activities of the joint, regardless of the vibration intensity. The long duration protocol (EP2) with maximum vibration intensity increased the RT, demonstrating activity beyond the stifle muscle group. It is concluded that exercises on the VP can be used as complementary therapy for low-impact muscle activity in dogs and may be adequate for efficient energy consumption.

Mandibular fractures represent an orthopedic challenge in veterinary medicine consideringthe large number of fixation methods that could be used depending on the location and manner in which the fracture occurs. Bone plates are a method of internal fixation that allows the correction of single or bilateral fractures, simple or comminuted; which appropriate material and technical knowledge for their use. Recent studies have demonstrated the superior strength that the locked plates present in relation to the neutralization plates, especially when used in flat bones or with lower bone density. The present study aimed to evaluate the biomechanical strength of neutralization plates and locked plates in oblique mandibular fractures in dogs. Sixteen hemimandibles from mesocephalic dogs were selected, weighing between 15 and 25 kg, without mandibular pathological alterations. Unfavorable fractures were performed between the 2nd and 3rd premolar teeth. The hemimandibles were allocated to two groups and stabilized with neutralization (Group 1) and locked (Group 2) plates. Both groups were subjected to the vertical compression test using the EMIC DL500 machine, sought to note the difference of maximum resistance between the implants. The statistical analysis used was the t-test and showed no difference (P = 0.135) between the strength of the group receiving neutralization plates (21.08±9.766kgf) and the group that received locked plates (25.96±7.029kgf). From the point of view of resistance to vertical compression, the neutralized and locked plates have the same biomechanical strength. Key words: Mandibular fracture. Locked plates. Compression plates. Biomechanics. ResumoAs fraturas mandibulares representam um desafio ortopédico na medicina veterinária, pois existe uma grande quantidade de métodos de fixação que podem ser utilizados dependendo do local e forma com que a fratura ocorre. As placas ósseas são um método de fixação interna que permite a correção de fraturas uni ou bilaterais, simples ou cominutivas, porém necessitam de material apropriado e conhecimento técnico para sua utilização. Estudos recentes têm demonstrado a resistência superior que as placas bloqueadas apresentam sobre as placas de neutralização, principalmente quando utilizadas em ossos chatos ou com menor densidade óssea. O presente estudo teve como objetivo avaliar a resistência biomecânica de placas de neutralização e placas bloqueadas em fraturas mandibulares oblíquas em cães. Foram selecionadas 16 hemimandíbulas de cães mesocefálicos, com peso entre 15 e 25kg que não 1 Discente de Doutorado, Programa de Pós-graduação em Ciência Animal, Pontifícia Universidade Católica do Paraná, PUCPR, Curitiba, PR, Brasil. E-mail: luciano.isaka@gmail.com 2 Prof., Curso de Medicina Veterinária, PUCPR, Curitiba, PR, Brasil. E-mail: marychello@hotmail.com 3 Profs., Programa de Pós-Graduação em Ciência Animal, PUCPR, Curitiba, PR, Brasil. E-mail: jose.villanova@pucpr.br; claudia.pimpao@pucpr.br 4 Prof., Programa de Pós-Graduação em Engenharia Mecânica, Ponti...