Paula Cristina Sieczkowski Gonzalez

Osteossíntese de tíbia com fixador esquelético externo em um cordeiro

Entre os avancos que a clinica e cirurgia veterinaria apresentaram nos ultimos anos, o tratamento de fraturas em grandes animais pode ser citado como um exemplo. A experiencia, consolidada em outras especies de menor porte, permite a tentativa de extrapolar a mesma para as especies de maior porte, adequando-se sempre as caracteristicas e particularidades de cada especie. Atualmente, devemos considerar o tratamento de fraturas de animais de producao como uma forma de evitar o seu descarte, uma vez que, quando se trata de um animal reprodutor, devemos ter a opcao de trata-lo ao inves de decidir pela eutanasia. O presente estudo relata um caso de fratura transversa de diafise de tibia de membro posterior esquerdo em um cordeiro sem raca definida, com duas semanas de idade, com historico de pisoteamento por um bovino. Foi utilizada fixacao esqueletica externa tipo II para a osteossintese, obtendo-se eficiente estabilizacao da fratura. O animal ficou hospitalizado durante todo o periodo de pos-operatorio e a consolidacao ossea foi obtida em 30 dias.

Hipospadia perineal em um cão: relato de caso

Hypospadias is a congenital anomaly of the external genitalia, where the penile urethra finishes its normal opening ventrally and caudally. It can be classified based on the location of the urethral opening as glandular, penile, scrotal, perineal and anal. The aim of this work was report an uncommon case of perineal hypospadias, working on the clinical and therapeutic aspects in a six-month-old male dog of undefined race. A dog with a history of suspected hermaphroditism and presenting a hole below the anus by which it urinated, was rescued at the Veterinary Teaching Hospital of the Federal University of Rio Grande do Sul (UFRGS). During the physical exam, it was observed that the urethral meatus was situated ventrally to the anus. Foreskin, penis and scrotum alterations were also seen on the dog. Screening exams such as complete blood count, urinalysis, abdominal ultrasound and cystourethrography were done. The dog went straight to surgery, where it had total penile and total preputial amputation and also orchiectomy. The canine showed excellent postoperative recovery, receiving antibiotic therapy, analgesics, anti-inflammatories and daily cleaning on stitches and the perineal region. Thirty days after surgery the patient went back to the Hospital presenting a complete healing of the surgical wound, without reporting signs of urinary infection and inflammation or rashes on the perineal region. The perineal hypospadias is a rare case of urethral congenital anomaly, still not well documented by veterinary medicine. The surgical procedure done demonstrated to be important, since there was the removal of all of the defective external genitalia where, in the future, inflammation and infection could develop, decreasing the complications of this disease and improving this patients quality of life.

Osteossíntese de mandíbula e maxila em equinos adultos: relato de quatro casos

Secondary mandible fracture due to external trauma is not uncommon in horses, that being the most commonly fractured bone when the injure is on the animal´s head. In most cases, the injuries are open and damaging to surrounding soft tissues. As the bones of the head are not subjected to load forces, the support requirements for fracture fixation are less challenging. This paper describes the surgical treatment of four mandible fractures in horses, and, in one case, the animal had also suffered a fractured jaw. Four horses with a history of trauma to the head region have been examined, clinically and radiographically evaluated, and after being diagnosed, each of them was submitted to surgical treatment. In the first case, the horse showed rostral fracture of the jaw, thus being treated with cerclage. Moreover, the animal had multiple jaw fractures that were fixed with a cerclage next to the incisors, with a plate and two screws and cerclage in the region between the incisors and the premolars. The second animal had multiple fractures of the horizontal and vertical branches of the right jaw and was treated with the use of five reconstruction plates and screws. The third patient was diagnosed with a simple horizontal branch fracture of the left mandible that was stabilized with a plate and screws. The fourth patient had a fracture of the rostral mandible with avulsion of four incisors, and received the extraction of incisors and labial mucosa suture. All animals received fracture treatment in different post surgical periods, allowing improved quality of life.

Comparison of lyophilization, and freezing in honey as techniques to preserve cortical bone allografts used to repair experimental femoral defects in domestic adult cats

Cats with orthopedic conditions are a prominent part of the clinical work of veterinary. Conditions such as comminuted fractures, bone tumors and non-unions are often difficult to repair and may require the use of bone grafts for treatment. This study evaluated cortical bone allografts preserved in honey, frozen or lyophilized for correcting long bone defects created in the diaphysis of the right femur of domestic cats (n=24). In the control group (n=6), the defect was repaired using autogenous cortical bone graft. In the remaining animals (n=6/group), the defect was repaired with cortical bone allografts preserved in honey, frozen or lyophilized. Success of graft incorporation and length of time for consolidation were assessed through clinical, radiographic and histological evaluations performed up to 180 days. In the control, frozen, honey and lyophylized groups, respectively, success of graft incorporation was 91.6%, 83.3%, 75%, and 25%, with corresponding mean length of time for consolidation of 83.1, 78, 105 and 120 days. Incorporation percentage in the lyophilized group was significantly lower than in the frozen and control groups. In conclusion, bone grafts preserved in honey or frozen were effective for repairing cortical defects in the femurs of cats as compared to autogenous cortical bone grafts.