Computed Tomographic Tenography of the Equine Carpal Flexor Tendon Sheath.

IF 1.3 2区 农林科学 Q2 VETERINARY SCIENCES
Thomas David Chisholm Woods, Jonathon Dixon, Barny Simon Lovat Fraser, Chris Melvaine
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引用次数: 0

Abstract

Exploratory tenoscopy is considered the gold standard technique to identify intrathecal pathology of the equine carpal flexor tendon sheath (CFTS). Preoperative diagnosis allows for more precise prognostication and surgical planning, potentially associated with improved surgical outcomes. This prospective, descriptive, anatomical study aimed to describe the anatomy of the equine CFTS using noncontrast and contrast CT in clinically normal cadaver limbs. Ten pairs of equine forelimbs free of gross external abnormalities were examined from mid-antebrachium to distal metacarpus. Specimens initially underwent noncontrast CT examination using 135 kVp, dynamic mAs, and 1 mm slice thickness. Contrast media (iohexol) diluted in saline (total 60 mL, final concentration 75 mg/mL) was injected into the CFTS from a lateral approach before the CT examination was repeated. Tenoscopy was then performed using the conventional lateral approach. Dissection was used to compare the gross, tenoscopic, and imaging findings. The combined noncontrast CT and contrast CT examinations provided excellent anatomical detail of intrathecal and extrathecal structures. Detailed anatomy of the previously undescribed proximal mesotenon and manica of the common mesotenon were also identified. The distal termination of the CFTS was beyond the mid-metacarpus in most specimens, which is significantly more distal than previously reported. This is an important consideration when administering local anesthesia in orthopedic examinations to prevent potential iatrogenic CFTS penetration, which may induce sepsis if the aseptic technique is not followed. Noncontrast and contrast CT can be used to accurately identify CFTS anatomy. Documentation of new intrathecal structures provides a greater understanding of CFTS anatomy.

马腕屈肌腱鞘的计算机层析成像。
探索性腱鞘镜检查被认为是鉴别马腕屈肌腱鞘鞘内病理的金标准技术。术前诊断允许更精确的预测和手术计划,可能与改善手术结果相关。这项前瞻性、描述性、解剖学研究旨在描述临床正常尸体肢体使用非对比和对比CT对马CFTS的解剖。从前臂中部到掌骨远端,对10对无明显外部异常的马前肢进行了检查。标本最初采用135kvp、动态mAs和1mm切片厚度进行非对比CT检查。在重复CT检查前,从侧入路将造影剂(碘己醇)用生理盐水稀释(总60ml,终浓度75mg /mL)注入CFTS。然后采用常规外侧入路进行肌腱镜检查。解剖用于比较大体、肌腱镜和影像学表现。非对比CT和对比CT联合检查提供了鞘内和鞘外结构的良好解剖细节。详细解剖先前描述的近中腱鞘和躁症的共同中腱鞘也被确定。在大多数标本中,CFTS的远端末端在掌骨中部以外,这比以前报道的要远得多。当在骨科检查中实施局部麻醉以防止潜在的医源性CFTS渗透时,这是一个重要的考虑因素,如果不遵循无菌技术,CFTS可能会导致败血症。非对比和对比CT可准确识别CFTS的解剖结构。新的鞘内结构的记录提供了对CFTS解剖的更好理解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Veterinary Radiology & Ultrasound
Veterinary Radiology & Ultrasound 农林科学-兽医学
CiteScore
2.40
自引率
17.60%
发文量
133
审稿时长
8-16 weeks
期刊介绍: Veterinary Radiology & Ultrasound is a bimonthly, international, peer-reviewed, research journal devoted to the fields of veterinary diagnostic imaging and radiation oncology. Established in 1958, it is owned by the American College of Veterinary Radiology and is also the official journal for six affiliate veterinary organizations. Veterinary Radiology & Ultrasound is represented on the International Committee of Medical Journal Editors, World Association of Medical Editors, and Committee on Publication Ethics. The mission of Veterinary Radiology & Ultrasound is to serve as a leading resource for high quality articles that advance scientific knowledge and standards of clinical practice in the areas of veterinary diagnostic radiology, computed tomography, magnetic resonance imaging, ultrasonography, nuclear imaging, radiation oncology, and interventional radiology. Manuscript types include original investigations, imaging diagnosis reports, review articles, editorials and letters to the Editor. Acceptance criteria include originality, significance, quality, reader interest, composition and adherence to author guidelines.
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