The use of ultrasound-guided injections is a widely known and well-established procedure in equine medicine not only for intra-articular procedures but also for treating injuries affecting soft tissues. The aim of this study was to compare the conventional ultrasound-guided technique (CUGT) with a modified ultrasound-guided magnetic navigation technique (MUGT) in the articular process joints spaces of the cervical vertebrae. The aforementioned techniques were compared by measuring the degree of difficulty, the time employed and the success of the procedure (injecting blue methylene into the articular process joints spaces of cadavers to allow us to know whether the procedure was successful). Neck specimens from 11 cadavers were used to conduct this study. To compare the two different techniques, the articular process joints spaces of 11 specimens were injected bilaterally using ultrasound guidance, using one technique on each side. One millilitre of methylene blue was injected into the C2-C3, C3-C4, C4-C5 and C5-C6 articular process joints; then, these joints were dissected to verify the success rate of the injections. The results were similar regarding the success rate of the procedure; however, there were differences in the time employed (25.0 s median runtime for MUGT vs. 32.1 s median runtime for CUGT) and the degree of difficulty (1.3 attempts on average for MUGT vs. 2.4 attempts on average for CUGT). According to the results of this study, MUGT involved less difficulty and slightly less time employed to inject the cervical articular processes joints than CUGT; however, further studies in live horses are needed to assess the efficiency of this method, and studies in other joints or soft tissues are needed to validate the method. This new technique could also improve other equine ultrasound-guided procedures, such as nerve blocks, ultrasound-guided tendon/joints treatments or other articular injections.

中文翻译：

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马颈椎关节内注射手绘磁针引导技术

超声引导注射的使用是马医学中广为人知和完善的程序，不仅用于关节内手术，还用于治疗影响软组织的损伤。本研究的目的是在颈椎关节突关节间隙中比较传统超声引导技术 (CUGT) 与改进的超声引导磁导航技术 (MUGT)。通过测量手术的难度、使用的时间和成功率（将蓝色亚甲基注射到尸体的关节突关节空间，让我们知道手术是否成功）来比较上述技术。来自 11 具尸体的颈部标本用于进行这项研究。为了比较这两种不同的技术，使用超声引导双侧注射 11 个标本的关节突关节间隙，每侧使用一种技术。1毫升亚甲蓝注射到C2-C3、C3-C4、C4-C5和C5-C6关节突关节；然后，解剖这些关节以验证注射的成功率。手术成功率的结果相似；然而，使用的时间（MUGT 的中位运行时间为 25.0 秒，CUGT 的中位运行时间为 32.1 秒）和难度（MUGT 平均尝试 1.3 次，CUGT 平均尝试为 2.4 次）存在差异。根据这项研究的结果，与 CUGT 相比，MUGT 注射颈椎关节突关节的难度更小，时间也略少；然而，需要对活马进行进一步研究以评估该方法的效率，还需要对其他关节或软组织进行研究以验证该方法。这项新技术还可以改进其他马的超声引导程序，例如神经阻滞、超声引导的肌腱/关节治疗或其他关节注射。