RESUMEN
A 14-yr-old female eastern black rhinoceros (Diceros bicornis michaeli) presented with progressive suppurative osteomyelitis in her left hind lateral toe. beta-Hemolytic Streptococcus sp. was isolated. The animal was treated with multiple systemic antibiotics, and topical wound cleansing. Repeated debridements and nail trimmings were performed for 5 mo prior to electing amputation. The toe was surgically amputated under general anesthesia between the first and second phalanges. Analgesia was diffused into the wound topically via a catheter and elastomeric pump. The open amputation site was covered with adherent drapes and a negative-pressure wound therapy device provided vacuum-assisted closure (V.A.C.) for 72 hr. Three months later this animal developed a deep dermal ulcer on the lateral aspect of the right hind limb, at the level of the stifle. Methicillin-resistant Staphylococcus aureus was isolated. The wound was managed by initial daily lavage, followed by 1 mo of V.A.C. therapy, with 72 hr between dressing changes. Clinically, this therapy expedited the formation of healthy granulation tissue and overall healing was accelerated. The animal tolerated the machine and bandage changes well via operant conditioning. The use of negative-pressure wound therapy appeared to shorten time to resolution of slow-healing wounds in black rhinoceros.
Asunto(s)
Amputación Quirúrgica/veterinaria , Miembro Posterior/cirugía , Terapia de Presión Negativa para Heridas/veterinaria , Osteomielitis/veterinaria , Perisodáctilos/cirugía , Dedos del Pie/cirugía , Animales , Femenino , Osteomielitis/cirugía , Infecciones Estreptocócicas/cirugía , Infecciones Estreptocócicas/veterinaria , Cicatrización de HeridasRESUMEN
Digital dermatitis is a superficial epidermatitis of the feet of cattle. Data from previous work suggest that spirochaetes, Campylobacter spp., and Bacteroides spp. may be important in the disease, but the etiology of this disease is not entirely clear. Tissue samples collected from digital dermatitis lesions in three Holstein-Friesian cows from a Michigan dairy yielded a predominant colony type when incubated anaerobically on blood agar at 35 degrees C for 24-48 h. The isolate was a non-flagellated Gram-negative rod, 7 microM long and <0.5 microM wide; its growth was strictly anaerobic and resulted in slight ss-hemolysis on blood agar; 16S rRNA gene sequence analysis indicated it belonged to the cytophoga-flexibacter-bacteroides phylum. The finding that this bacterium was the predominant anaerobe recovered from digital dermatitis lesions suggests it may be involved in the digital dermatitis disease process.