ABSTRACT
The peculiarities of anatomic and physiologic features of dromedary camels are elucidated in this review and compared with Bactrian, camels, and other species. Both dromedary and Bactrian camel scrotum varies in length from 10-20 cm and the testes are in the perineal region behind the thighs (like dogs) and weigh from 80-90 gm and length varies from 10-14 cm. Compared to ram and buck, camel epididymis has a higher weight (20-46 g) and has a unique structure called the intra-epithelial glands. Both dromedaries and Bactrian camels do not have seminal vesicles. Male camels have specialized secretory glands behind the ears known as poll glands that are bigger in the Bactrian camels compared to dromedary camels and similar glands are not seen in any of the other domestic species. Camels have a special reproductive behavior during the breeding season known as rut and include extrusion of the soft palate, copious froth from the mouth, gurgling sounds, splashing of urine, increased secretion from the poll glands and loss of appetite with considerable reduction in body weight. Such behaviors are not evidenced by any other domestic species including buffalo. Serum testosterone rises substantially in male camels during rut (2-42 ng/mL) compared to the non-rutting season (0.6-8 ng/mL) and the resultant increase in the size of the testes, number, and functionality of Leydig cells and secretion of poll glands. The serum thyroidal hormones also increase significantly during the rut season. It is concluded that male camels have some special anatomic and physiologic features of reproduction not observed in other domestic species.
ABSTRACT
Abstract Objective Floating knee injuries are complex injuries and are usually caused by highvelocity trauma. These injuries are often associated with life treating injuries, which should take precedent over extremity injuries. The authors reviewed the outcomes of floating knee injuries managed in this institute from 2003 to 2015. Method A retrospective study was conducted of all patients with floating knee injuries from2003 to 2015. Twelve patients were included in the study. Data related to fracture type, associated injuries, treatmentmodalities, and complications were noted. Functional assessment was performed using themodified Karlstromand Olerud criteria after complete bony union. Result The mechanism of injury was motor vehicle accident in all patients. The mean follow up was four years. The mean age of patients was 34.75 year. The mean union time was 6.5 months in femurs and 6.7 month in tibias. The complications were knee stiffness, delayed union, and infection. According to modified Karlstrom criteria, there were three - excellent, five - good, three - fair, and one poor result. Conclusion Floating knee injuries are severe injuries and are usually associated withmultiorgan injuries. Early detection and appropriate management of associated injuries, early fixation of fractures, and postoperative rehabilitation are needed for good outcome. Complications are frequent, in the form of delayed union, knee stiffness, and infection.
Resumo Objetivo As lesões do tipo joelho flutuante (FKIs, na sigla em inglês) são complexas e são geralmente causadas por trauma de alta velocidade. Estas lesões são frequentemente associadas a lesões que causamrisco demorte, que devemter precedente sobre lesões nas extremidades. Os autores revisaram os resultados das lesões do tipo joelho flutuante tratadas nesta instituição entre 2003 e 2015. Método Foi realizado um estudo retrospectivo de todos os pacientes com FKIs de 2003 a 2015. Doze pacientes foram incluídos no estudo. Os dados relacionados ao tipo de fratura, lesões associadas, modalidades de tratamento e complicações foram observados. A avaliação funcional foi realizada utilizando os critérios de Karlstrom modificados após a união óssea completa. Resultados Omecanismo de lesão foi acidente automobilísticoemtodos os pacientes.O acompanhamentomédio foi de 4 anos.Amédia de idade dos pacientes foi de 34,75 anos.O tempo médio de união óssea foi de 6,5 meses nos fêmures e de 6,7 meses nas tíbias. As complicações foram rigidez do joelho, união óssea tardia e infecção. De acordo com os critérios modificados de Karlstrom, três resultados foram considerados excelentes, cinco bons, três razoáveis e um resultado foi considerado ruim. Conclusão Lesões do tipo joelho flutuante são graves e são geralmente associadas a lesões de vários órgãos. A detecção precoce e o tratamento adequado das lesões associadas, a afixação precoce das fraturas e a reabilitação pós-operatória são necessários para um bom resultado. As complicações são frequentes, sob a forma de união óssea tardia, rigidez do joelho e infecção.