饲养场阉牛足尖坏死综合征1例临床进展。

IF 0.9 4区 农林科学 Q3 VETERINARY SCIENCES
Désirée Gellatly, Karen S Schwartzkopf-Genswein, Wiolene M Nordi, Tawni Silver, Murray Jelinski
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引用次数: 0

摘要

一只脾气暴躁的饲养场阉牛在19日龄时被诊断为后肢跛行。临床检查(第0周)显示双后脚外侧指白色线分离。清创证实了足尖坏死综合征,并给予土霉素(20 mg/kg, SC)和美洛昔康(0.10 mg/kg, SC)治疗。x线片显示双侧指P3骨溶解,到第4周时,右后脚内侧爪也受到类似影响。在25周的时间内进行临床和影像学检查。在22周的时间内获得直肠温度、体重(BW)、皮质醇(唾液和毛发)、触珠蛋白和全血(细胞)计数。到第7周,新的角生长覆盖了清除的足底缺陷,x线片证实P3骨的重塑。屠宰时(第25周),两只后脚除外侧指比内侧指长外,其余均正常。x线片显示P3骨永久性改变。虽然这只动物后肢4个手指中有3个有骨溶解,但在第0周成功地进行了抗菌治疗和清创,并在第2周进行了第二次清创。早期干预和清创术是预防其他后遗症的关键,如深部手指败血症。主要临床信息:一头饲养场阉牛被诊断为足尖坏死综合征,包括后肢4趾中3趾的骨溶解,通过清创和抗菌治疗成功治疗。x线检查证实远端指骨(P3)重塑,治疗后25周无活动性感染。本病例强调,饲养场动物P3多骨溶解可通过清创和抗菌剂成功治疗。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Clinical progression of a case of toe-tip necrosis syndrome in a feedlot steer.

A fractious feedlot steer was diagnosed with hind-limb lameness at 19 d on-feed. Clinical examination (Week 0) revealed white line separation of both lateral digits of both hind feet. Debridement confirmed toe-tip necrosis syndrome and the steer was treated with oxytetracycline (20 mg/kg, SC) and meloxicam (0.10 mg/kg, SC). Radiographs revealed osteolysis of P3 bones of both lateral digits, and by Week 4 the medial claw of the right hind foot was similarly affected. Clinical and radiographic examinations were conducted over a 25-week period. Rectal temperature, body weight (BW), cortisol (salivary and hair), haptoglobin, and complete blood (cell) counts were obtained over a 22-week period. New horn growth covered the debrided sole defects by Week 7, and radiographs confirmed remodelling of the P3 bones. At slaughter (Week 25), both hind feet appeared normal except for the lateral digits being longer than the medial digits. Radiographs indicated permanent changes in the P3 bones. Although this animal had osteolysis in 3 of 4 hind-limb digits, it was successfully treated with antimicrobial therapy and debridement on Week 0 followed by a second debridement in Week 2. Early intervention and debriding are central to preventing other sequelae such as deep digital sepsis. Key clinical message: A feedlot steer diagnosed with toe-tip necrosis syndrome, including osteolysis of 3 of 4 hind-limb digits, was successfully treated with debridement and antimicrobial therapy. Radiographic examinations confirmed remodeling of the distal phalanges (P3) and absence of active infection 25 wk after treatment. This case underscores that feedlot animals with osteolysis of multiple P3 bones can be treated successfully using debridement and antimicrobials.

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来源期刊
CiteScore
1.20
自引率
10.00%
发文量
177
审稿时长
12-24 weeks
期刊介绍: The Canadian Veterinary Journal (CVJ) provides a forum for the discussion of all matters relevant to the veterinary profession. The mission of the Journal is to educate by informing readers of progress in clinical veterinary medicine, clinical veterinary research, and related fields of endeavor. The key objective of The CVJ is to promote the art and science of veterinary medicine and the betterment of animal health. A report suggesting that animals have been unnecessarily subjected to adverse, stressful, or harsh conditions or treatments will not be processed for publication. Experimental studies using animals will only be considered for publication if the studies have been approved by an institutional animal care committee, or equivalent, and the guidelines of the Canadian Council on Animal Care, or equivalent, have been followed by the author(s).
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