RESUMEN
A 4.5-month-old Standardbred colt presented for neck swelling and fever. Endoscopy and contrast radiography identified a full thickness esophageal perforation. Surgical intervention with fasciotomies and placement of an esophageal feeding tube was elected. Intensive postoperative treatment was carried out with broad-spectrum antibiotics, gastroprotectants and probiotics, calculated feeding plan, esophagostomy and fasciotomy site lavages, care, and cleaning. Complications included recurrent bilateral pneumothorax and development of an incomplete fistula at the esophagostomy site following removal of the feeding tube, necessitating primary closure. One year following presentation, the colt appears to have made a full recovery with an excellent body and muscle condition score and undergoing athletic training. Anticipated price of sale as a yearling was achieved. This study highlights a viable treatment route for youngstock with esophageal perforation that necessitate an esophagostomy. Despite intensive dietary needs of growing foals, appropriate nutritional requirements and normal growth rates can be achieved in such cases.
RESUMEN
OBJECTIVES: The lateral trochlear ridge (LTR) of the femur is the most common predilection site for osteochondritis dissecans (OCD) in the equine stifle. The objective was to investigate the relationship between lesion size, racing performance, and sale result of Thoroughbreds with LTR OCD following arthroscopic removal as a yearling. METHODS: In this retrospective study, medical records of 145 Thoroughbreds from one equine hospital that underwent surgery for LTR OCD were reviewed; the length and depth of the lesions were measured on preoperative radiographs. Horses were allocated to group S if they were presented to a public yearling sale post-surgery, and horses in group NS were not. Each horse from group S was matched with two control horses from the same sale (group C). Influence of lesion size on racing performance and sale result was analyzed. Racing performance and sale results were compared between different categories of OCD lesion sizes and between the groups. RESULTS: Lesion length and depth did not affect racing performance and did not differ between group S and group NS. However, group S did perform significantly better than group NS. When comparing groups S and C, there were no significant differences in racing performance and sale result. CONCLUSION: Thoroughbreds that had arthroscopic surgery for LTR OCD as a yearling and were presented on a public yearling sale performed comparable to Thoroughbreds that showed similar potential as a yearling. Sale result is not significantly affected in our study.
Asunto(s)
Enfermedades de los Caballos , Osteocondritis Disecante , Animales , Caballos , Estudios Retrospectivos , Articulaciones , Osteocondritis Disecante/cirugía , Osteocondritis Disecante/veterinaria , Artroscopía/veterinaria , Fémur/patología , Enfermedades de los Caballos/cirugíaRESUMEN
OBJECTIVE: To quantify the influence of intravenous regional limb perfusion (IVRLP) with amikacin on bacterial bioburden in limb wounds. STUDY DESIGN: In vivo, experimental. ANIMALS: Four adult horses. METHODS: Full thickness wounds created on each dorsal metacarpus were inoculated with Staphylococcus aureus. One forelimb was randomly assigned to cephalic vein IVRLP with amikacin on days 2, 3, and 4 post-wounding. Biopsies on day 2 prior to IVRLP, and on days 5 and 8 were cultured to quantify wound bioburden (CFU/g). Two horses repeated the study in a crossover design, receiving IVRLP on the opposite limb (n = 6 experiments). IVRLP was performed on both forelimbs simultaneously in 3 horses at the end of the study: limbs were perfused with a volume of new methylene blue equal to that of the amikacin, through the cephalic vein or palmar digital vein. After euthanasia, wounds were photographed to subjectively assess dye diffusion. RESULTS: The bioburden did not differ between control and IVRLP limbs overall or at any individual time point. No difference was detected between groups in terms of frequency of positive bacterial growth at any time. Methylene blue was visible in all excised tissues after IVRLP through the palmar digital vein, but was not visible in limbs perfused through the cephalic vein. CONCLUSION: IVRLP may not effectively concentrate amikacin within a wound bed and did not influence S. aureus bioburden in an experimentally created wound infection.